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Plant and Animal Tissue Worksheet: Biology Questions
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Chapter 1: Plant And Animal tissue MULTIPLE CHOICE QUESTIONS 1. A group of similar cells that perform a specific function is called a a) Organ b) Organ system c) Species d) Tissue 2. The fine branches arising from the cyton of a nerve cell are called a) Dendrites b) Axon c) Neurons d) Synapse 3. Which one is a fluid connective tissue? a) Areolar tissue b) Bone c) Blood d) Tendon 4. Which plant tissue is responsible for growth? a) Parenchyma b) Xylem c) Meristematic d) Collenchyma 5. Which tissue is found at the tip of the root and stem? a) Phloem b) Xylem c) Apical meristem d) Collenchyma 6. Which of the following is a permanent tissue? a) Parenchyma b) Meristematic c) Cambium d) Apical 7. Parenchyma cells have a) Thick walls b) No vacuoles c) Thin walls and vacuoles d) No cytoplasm 8. Potatoes are composed mainly of a) Xylem cells b) Sclerenchyma cells c) Parenchyma cells d) Collenchyma cells 9. Which plant tissue provides support and has thick corners? a) Parenchyma b) Collenchyma c) Sclerenchyma d) Phloem 10.Sclerenchyma cells are a) Thick-walled and living b) Thin-walled and dead c) Thick-walled and dead d) None of these 11.The tissue that conducts water and minerals in plants is a) Phloem b) Collenchyma c) Parenchyma d) Xylem 12.The tissue that conducts food in plants is a) Xylem b) Phloem c) Cambium d) Sclerenchyma 13.Xylem is made up of a) Living tubular cells b) Dead tubular cells c) Parenchyma only d) Collenchyma 14.Phloem consists mainly of a) Dead cells b) Living tubular cells c) Dead xylem tubes d) Thick-walled tracheids 1 15.Which tissue helps in movement in animals? a) Connective b) Muscular c) Nervous d) Epithelial 16.Epithelial tissue with flat cells is called a) Cuboidal b) Columnar c) Ciliated d) Squamous 17.Which epithelial tissue helps in secretion and absorption? a) Cuboidal b) Ciliated c) Squamous d) Glandular 18.Columnar epithelium is a) Cubic b) Tall and cylindrical c) Flat and thin d) Disc-shaped 19.Ciliated epithelium helps in a) Movement of substances b) Absorption only c) Protection only d) None 20.Connective tissue that connects muscles to bones is a) Ligament b) Cartilage c) Tendon d) Areolar 21.Connective tissue that connects bone to bone is a) Tendon b) Ligament c) Cartilage d) Areolar 22.Cartilage is an example of a) Muscular tissue b) Epithelial tissue c) Supportive connective tissue d) Fluid tissue 23.The fluid connective tissues are a) Bone and cartilage b) Blood and lymph c) Plasma and platelets d) Blood and bone 24.Which part of blood transports oxygen? a) WBC b) Plasma c) RBC d) Platelets 25.The liquid portion of blood is called a) Lymph b) Plasma c) Serum d) Hemoglobin 26.Adipose tissue helps in a) Binding organs b) Storing fat c) Circulating blood d) Muscle contraction 27.Areolar tissue binds a) Blood to muscles b) Skin to underlying tissue c) Bones to bones d) Bones to muscles 28.Striated muscles are a) Involuntary and branched b) Voluntary and unbranched c) Involuntary and unbranched d) Voluntary and branched 29.Cardiac muscles are found in the a) Intestines b) Lungs c) Heart d) Brain 30.The basic unit of nervous tissue is a) Muscle fiber b) Cartilage c) Neuron d) Dendrite 31.The long extension of a neuron is called a) Axon b) Dendrite c) Cyton d) Nucleus 32.The small thread-like branches of a neuron are a) Axon b) Dendrites c) Nerves d) Cyton 2 33.Which tissue conducts messages in the body? a) Connective b) Muscular c) Nervous d) Epithelial 34.The vascular system in plants is made up of a) Collenchyma and parenchyma b) Meristem and sclerenchyma c) Xylem and phloem d) Phloem and epidermis 35.The part of the neuron that contains the nucleus is called a) Axon b) Dendrite c) Cyton d) Myelin 36.The tissue responsible for increase in height of plants is a) Collenchyma b) Sclerenchyma c) Apical meristem d) Phloem 37.Muscle tissue that works without our will is a) Striated b) Smooth c) Skeletal d) Voluntary 38.The muscle type that shows both striations and involuntary action is a) Skeletal b) Smooth c) Cardiac d) None 39.Tendons are made of a) Muscle cells b) Epithelial tissue c) Fibrous connective tissue d) Neurons 40.Ligaments are found between a) Muscles and bones b) Bones and muscles c) Bones and bones d) Bones and skin Fill in the Blanks 1. A group of similar cells performing a specific function is called a __________. 2. The tissues in plants responsible for growth are called __________ tissues. 3. __________ meristem is found at the tips of roots and shoots. 4. Permanent tissues in plants are derived from __________ tissues. 5. Parenchyma cells are __________ and have large vacuoles. 6. __________ tissue provides mechanical support in young plant parts. 7. Sclerenchyma cells are __________ and have thick walls. 8. Xylem transports __________ and minerals in plants. 9. Phloem transports __________ from leaves to other parts of the plant. 10.Xylem consists of dead, __________-shaped cells. 11.Phloem is made up of living __________ cells. 12.In animals, the tissue covering the body and internal organs is called __________ tissue. 13.The epithelial tissue made of flat cells is called __________ epithelium. 14.Cuboidal epithelium is __________ shaped. 15.The connective tissue that connects muscles to bones is called __________. 16.The connective tissue that connects bone to bone is called __________. 17.Cartilage is a type of __________ connective tissue. 18.Blood is a __________ connective tissue. 19.The fluid part of blood is called __________. 3 20.Red blood cells contain __________ which helps transport oxygen. 21.White blood cells fight against __________. 22.Platelets help in __________ of blood. 23.Areolar tissue binds __________ to underlying parts. 24.__________ tissue stores fat and provides insulation. 25.Striated muscles are also known as __________ muscles. 26.Smooth muscles are __________ and involuntary. 27.Cardiac muscles are found in the __________. 28.The basic unit of nervous tissue is the __________. 29.The long branch of a neuron is called the __________. 30.The short branches of a neuron are called __________. 31.The part of the neuron that contains the nucleus is called the __________. 32.The vascular tissue in plants consists of __________ and __________. 33.The meristem that causes increase in girth of plants is the __________ meristem. 34.__________ epithelium lines the respiratory tract. 35.Ligaments are __________ and elastic. 36.Tendons are tough and made of __________ fibres. 37.Muscles that work according to our will are called __________ muscles. 38.Muscles that work involuntarily are called __________ muscles. 39.The function of phloem is to transport __________. 40.The function of xylem is to transport __________ and __________. ___________________________________________________________________ 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___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 12 WORKSHEET EXTRA QUESTION ANSWER: 1. What is a tissue? A tissue is a group of similar cells that work together to perform a specific function. 2. Name the two main types of plant tissues. Meristematic tissue and permanent tissue. 3. Where is apical meristem found in plants? It is found at the tips of roots and shoots. 4. What is the function of meristematic tissue? It helps in the growth of plants by increasing their length and girth. 5. What is parenchyma tissue? Parenchyma is a simple permanent plant tissue with thin-walled living cells and large vacuoles, often involved in storage. 6. What is the function of collenchyma? Collenchyma provides mechanical support and flexibility to plant parts. 7. What is sclerenchyma? Sclerenchyma is a plant tissue with thick-walled, dead cells that provide rigidity and strength. 8. Name the two vascular tissues in plants. Xylem and phloem. 9. What is the function of xylem? Xylem transports water and minerals from roots to other parts of the plant. 10.What is the function of phloem? Phloem transports food from leaves to all parts of the plant. 11.What are the four main types of animal tissues? Epithelial, connective, muscular, and nervous tissue. 12.What is epithelial tissue? Epithelial tissue covers the body and lines internal organs and cavities. 13.Name any two types of epithelial tissue. Squamous epithelium and columnar epithelium. 14.What is connective tissue? Connective tissue connects and supports different body parts. 15.Name two connective tissues. Blood and bone. 16.What is the function of blood? Blood transports oxygen, nutrients, and waste products throughout the body. 17.What is the function of adipose tissue? It stores fat and provides insulation and protection. 13 18.What is a ligament? A ligament is a connective tissue that connects bone to bone. 19.What is a tendon? A tendon is a connective tissue that connects muscle to bone. 20.What are the three types of muscles? Striated (skeletal), smooth, and cardiac muscles. 21.Where are smooth muscles found? In the walls of internal organs like the stomach and intestines. 22.Which type of muscle is found only in the heart? Cardiac muscle. 23.Which muscles work under our will? Striated or voluntary muscles. 24.What is the basic unit of nervous tissue? Neuron. 25.What is the function of nervous tissue? Nervous tissue helps in transmitting messages between different parts of the body. 26.What is an axon? The long extension of a neuron that carries messages away from the cell body. 27.What are dendrites? The short branches of a neuron that receive messages. 28.What is cyton? It is the cell body of a neuron containing the nucleus. 29.Which tissue in plants helps in transport of food? Phloem. 30.Which connective tissue binds skin to muscles? Areolar tissue. 14 Chapter 2: Classification of Plants MULTIPLE CHOICE QUESTIONS 1. Plants with soft, green, and perishable stems are called a) Trees b) Shrubs c) Herbs d) Climbers 2. Plants like rose and lemon that have woody stems with branches near the base are a) Trees b) Herbs c) Shrubs d) Creepers 3. Tall plants with hard, woody stems and high branches are classified as a) Shrubs b) Trees c) Herbs d) Climbers 4. Plants that do not bear flowers are called a) Gymnosperms b) Cryptogams c) Angiosperms d) Mesophytes 5. Thallophytes include a) Fungi b) Algae c) Bacteria d) All of these 6. Plants that have stems and leaves but no roots are a) Algae b) Bryophytes c) Fungi d) Thallophytes 7. Amphibians of the plant kingdom are a) Ferns b) Gymnosperms c) Mosses d) Algae 8. Plants that reproduce by spores and have feather-like leaves are a) Bryophytes b) Pteridophytes c) Gymnosperms d) Angiosperms 9. Flowering plants that bear seeds inside fruits are called a) Angiosperms b) Gymnosperms c) Pteridophytes d) Bryophytes 10.Seeds in gymnosperms are a) Covered with fruit b) Naked c) Found in flowers d) Inside rhizomes 11.Which of the following is a gymnosperm? a) Rose b) Mango c) Pine d) Wheat 12.Angiosperms with one cotyledon in the seed are a) Dicots b) Monocots c) Gymnosperms d) Pteridophytes 13.Dicotyledons have a) One cotyledon b) Needle-like leaves c) Two cotyledons d) Naked seeds 14.Mango and rose are examples of a) Monocots b) Gymnosperms c) Dicots d) Thallophytes 15.Maize and wheat are examples of a) Monocots b) Dicots c) Gymnosperms d) Pteridophytes 15 16.Plants which complete their life cycle in one season are called a) Perennials b) Biennials c) Annuals d) Deciduous 17.Plants that complete their life cycle in two years are called a) Annuals b) Perennials c) Biennials d) Seasonal 18.Carrot and cabbage are examples of a) Annuals b) Biennials c) Trees d) Monocots 19.Plants that live for many years are called a) Annuals b) Biennials c) Perennials d) Shrubs 20.Plants that shed their leaves once a year are a) Evergreen b) Deciduous c) Perennials d) Biennials 21.Plants that remain green throughout the year are a) Deciduous b) Evergreen c) Annuals d) Herbs 22.The basis for classifying plants as autotrophs or heterotrophs is a) Water requirement b) Habitat c) Mode of nutrition d) Seed structure 23.Plants that make their own food are a) Heterotrophs b) Parasites c) Saprophytes d) Autotrophs 24.Plants that depend on others for nutrition are called a) Heterotrophs b) Autotrophs c) Mesophytes d) Angiosperms 25.Cuscuta is an example of a a) Saprophyte b) Parasite c) Mesophyte d) Fern 26.Plants growing in moderate water conditions are a) Xerophytes b) Hydrophytes c) Mesophytes d) Epiphytes 27.Plants that grow in water are called a) Hydrophytes b) Xerophytes c) Mesophytes d) Angiosperms 28.Lotus and water lily are a) Xerophytes b) Hydrophytes c) Mesophytes d) Cryptogams 29.Plants that grow in deserts and require very little water are a) Hydrophytes b) Mesophytes c) Xerophytes d) Biennials 30.Which of the following is a xerophyte? a) Lotus b) Mango c) Cactus d) Mint 31.Which group of plants does not bear seeds? a) Cryptogams b) Gymnosperms c) Angiosperms d) Monocots 32.Plants like ferns reproduce by a) Seeds b) Cones c) Spores d) Fruits 33.The reproductive structures of gymnosperms are called a) Flowers b) Fruits c) Cones d) Spores 34.Which group includes mosses? a) Bryophyta b) Thallophyta c) Gymnosperms d) Pteridophyta 16 35.Algae contain a) No chlorophyll b) Chlorophyll c) Spores d) Cones 36.Mushrooms are classified as a) Algae b) Fungi c) Bryophytes d) Ferns 37.Amoeba belongs to the kingdom a) Plantae b) Monera c) Fungi d) Protista 38.Bacteria are included under a) Protista b) Monera c) Fungi d) Plantae 39.Rhizobium bacteria live in root nodules of a) Grass b) Maize c) Leguminous plants d) Ferns 40. In ferns, spores are produced in structures called a) Rhizoids b) Cotyledons c) Sori d) Fronds FILL IN THE BLANKS 1. Plants with soft green stems are called __________. 2. __________ are plants with woody stems and branches near the ground. 3. __________ are tall plants with a hard, woody stem. 4. Plants that grow along the ground are called __________. 5. Plants that need support to climb are called __________. 6. Plants that complete their life cycle in one season are called __________. 7. Plants that live for two years are called __________. 8. Plants that live for many years are called __________. 9. Plants that shed their leaves once a year are called __________. 10.Plants that remain green throughout the year are called __________. 11.The plant kingdom is divided into __________ and __________. 12.Plants that do not bear flowers are called __________. 13.Plants that bear flowers are called __________. 14.Algae, fungi, and lichens are included under __________. 15.__________ are called amphibians of the plant kingdom. 16.Plants like ferns belong to the group __________. 17.Pteridophytes reproduce by __________. 18.Seeds of gymnosperms are __________. 19.Angiosperms have seeds enclosed in __________. 20.Angiosperms are divided into __________ and __________. 21.Monocot seeds contain __________ cotyledon. 22.Dicot seeds contain __________ cotyledons. 23.Mango and rose are examples of __________. 24.Maize and wheat are examples of __________. 17 25.Plants that make their own food are called __________. 26.Cuscuta is an example of a __________ plant. 27.Mushrooms are __________ and obtain food from dead matter. 28.Plants growing in deserts are called __________. 29.Plants growing in water are called __________. 30.Plants growing in moderate conditions are called __________. 31.Plants like cactus are adapted to __________ conditions. 32.Lotus and water lily are examples of __________. 33.Rhizobium bacteria live in root nodules of __________ plants. 34.The broadest classification of plants is based on the presence or absence of __________. 35.Algae are mostly __________ and found in water. 36.Fungi do not contain __________ and cannot photosynthesize. 37.Ferns reproduce through structures called __________. 38.Spores in ferns are found in groups called __________. 39.Gymnosperms reproduce through structures called __________. 40. 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___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 27 WORKSHEET EXTRA QUESTION ANSWER: 1. What are herbs? Herbs are small, soft-stemmed plants that live for a short duration. 2. What are shrubs? Shrubs are medium-sized woody plants with branches growing near the base. 3. What are trees? Trees are tall, woody plants with a single main stem or trunk and branches at a height. 4. What are climbers? Climbers are plants with weak stems that need support to grow upward. 5. What are creepers? Creepers are plants that grow along the ground due to weak stems. 6. What are annuals? Annuals are plants that complete their life cycle within one growing season. 7. What are biennials? Biennials are plants that complete their life cycle in two years. 8. What are perennials? Perennials are plants that live and grow for many years. 9. What are deciduous plants? Plants that shed their leaves once a year are called deciduous. 10.What are evergreen plants? Evergreen plants retain their leaves throughout the year. 11.What are cryptogams? Plants that do not bear flowers or seeds are called cryptogams. 12.What are phanerogams? Flowering plants that produce seeds are called phanerogams. 13.What is the main difference between gymnosperms and angiosperms? Gymnosperms have naked seeds, while angiosperms have seeds enclosed in fruits. 14.Give one example of a gymnosperm. Pine. 15.Give one example of an angiosperm. Mango. 16.What are monocots? Monocots are angiosperms whose seeds have one cotyledon. 17.What are dicots? Dicots are angiosperms whose seeds have two cotyledons. 18.Give one example each of monocot and dicot plants. Monocot: Maize Dicot: Rose 28 19.What are autotrophic plants? Plants that make their own food by photosynthesis. 20.What are heterotrophic plants? Plants that depend on other organisms for food. 21.Name one parasitic plant. Cuscuta (Amarbel) 22.What are saprophytic plants? Plants that obtain nutrients from decaying organic matter. 23.What are hydrophytes? Plants that grow in or around water. 24.What are xerophytes? Plants that grow in dry, desert regions with little water. 25.What are mesophytes? Plants that grow in normal, moderate conditions. 26.Give one example of a hydrophyte. Lotus or Water lily. 27.Give one example of a xerophyte. Cactus. 28.Which group of plants includes mosses and liverworts? Bryophytes. 29.What are ferns classified as? Pteridophytes. 30.How do pteridophytes reproduce? By spores. 31.What are algae? Simple aquatic plants that have chlorophyll and reproduce by spores. 32.Which group of plants includes non-green, spore-producing organisms? Fungi. 33.Name the green pigment in algae. Chlorophyll. 34.What is the mode of reproduction in fungi? By spores. 35.What are sori in ferns? Clusters of spore-producing structures on the underside of leaves. 29 Chapter 3: Classification of Animals MULTIPLE CHOICE QUESTION: 1. Animals without a backbone are called a) Vertebrates b) Invertebrates c) Amphibians d) Mammals 2. Animals with a backbone are called a) Vertebrates b) Invertebrates c) Arthropods d) Molluscs 3. Which of the following is an example of a vertebrate? a) Earthworm b) Octopus c) Cow d) Spider 4. Which of these animals belong to the group Pisces? a) Lizard b) Dogfish c) Toad d) Parrot 5. Frogs breathe through a) Gills only b) Lungs and skin c) Skin only d) Spiracles 6. Animals with dry, scaly skin and laying eggs on land are a) Mammals b) Amphibians c) Reptiles d) Aves 7. Aves differ from mammals in that they a) Have hair b) Lay eggs c) Feed young with milk d) Have external ears 8. Birds have a) Hair on body b) Wings with feathers c) No beak d) Teeth 9. Mammals feed their young ones using a) Salivary glands b) Mammary glands c) Sweat glands d) Lungs 10.Which class of vertebrates has gills and lives entirely in water? a) Aves b) Amphibians c) Pisces d) Reptiles 11.Animals that can live both on land and water are a) Amphibians b) Fishes c) Mammals d) Reptiles 12.Which group includes animals with hollow bones? a) Mammals b) Aves c) Amphibians d) Reptiles 13.Animals that reproduce by laying eggs with hard shells include a) Mammals b) Fishes c) Reptiles d) Amphibians 14.Which invertebrate has a segmented body and nephridia for excretion? a) Earthworm b) Jellyfish c) Hydra d) Starfish 15.Insects are a part of a) Molluscs b) Crustaceans c) Arthropods d) Annelids 16.Which animal has an exoskeleton and jointed legs? a) Snail b) Crab c) Earthworm d) Tapeworm 30 17.Animals with body divided into head, thorax and abdomen are a) Insects b) Myriapods c) Molluscs d) Annelids 18.Which of the following has an unsegmented soft body and usually a shell? a) Earthworm b) Jellyfish c) Snail d) Centipede 19.Roundworms are also known as a) Platyhelminths b) Nematodes c) Annelids d) Molluscs 20.The correct match of annelids is a) Tapeworm, Fluke b) Earthworm, Leech c) Octopus, Squid d) Hydra, Jellyfish 21.Hydra and jellyfish belong to a) Porifera b) Cnidaria c) Annelida d) Mollusca 22.Cnidarians have a) Bilateral symmetry b) Jointed legs c) Tentacles d) Segmented bodies 23.Starfish and sea urchins belong to a) Molluscs b) Arthropods c) Echinoderms d) Protozoa 24.Which of the following has a radially symmetrical body? a) Earthworm b) Starfish c) Lizard d) Ant 25.Which of these are cold-blooded animals? a) Birds b) Mammals c) Amphibians d) Humans 26.What is the main characteristic of mammals? a) Lay eggs b) Cold-blooded c) Produce milk d) Have feathers 27.Animals whose body temperature changes with the environment are a) Warm-blooded b) Cold-blooded c) Homeothermic d) Endothermic 28.Which group includes animals with pores on their body? a) Cnidarians b) Porifera c) Mollusca d) Echinoderms 29.What is the function of gills in fishes? a) Hearing b) Swimming c) Breathing d) Movement 30.Amphibians lay their eggs in a) Soil b) Water c) Air d) Nest 31.Which of the following animals has a beak but no teeth? a) Dog b) Parrot c) Crocodile d) Snake 32.Centipede and millipede belong to a) Insecta b) Myriapoda c) Arachnida d) Mollusca 33.Which group of invertebrates has a fused head and thorax with 4 pairs of legs? a) Insecta b) Arachnida c) Crustacea d) Myriapoda 34.The body of insects is divided into a) Head and abdomen b) Thorax and abdomen c) Head, thorax and abdomen d) Cephalothorax 35.Which group includes animals with a hard outer shell and soft body? a) Molluscs b) Annelids c) Nematodes d) Echinoderms 31 36.Binomial nomenclature was introduced by a) Darwin b) Hooke c) Linnaeus d) Mendel 37.The scientific name of a species consists of a) One word b) Two words c) Three words d) Latin numbers 38.Animals that feed on both plants and animals are called a) Carnivores b) Herbivores c) Parasites d) Omnivores 39.A parasite that lives in the human intestine is a) Ascaris b) Amoeba c) Leech d) Earthworm 40. Animals that breathe through moist skin and lungs include a) Birds b) Reptiles c) Amphibians d) Fishes Fill in the Blanks 1. Animals with a backbone are called __________. 2. Animals without a backbone are called __________. 3. Pisces, amphibians, reptiles, aves, and mammals are classes of __________. 4. Animals that live in water and breathe through gills belong to the class __________. 5. __________ are cold-blooded animals that can live both in water and on land. 6. Reptiles breathe through __________. 7. Birds belong to the class __________. 8. Birds have __________ bones and are covered with __________. 9. The only animals that produce milk for their young are __________. 10.Mammals have __________ chambered hearts and are __________-blooded. 11.Insects belong to the phylum __________. 12.A group of invertebrates with soft, unsegmented bodies and usually a shell is called __________. 13.Earthworm and leech are examples of __________. 14.The body of an insect is divided into __________, __________, and __________. 15.Starfish and sea urchins belong to the group __________. 16.Animals that have pores all over their body belong to phylum __________. 17.Jellyfish and Hydra belong to the group __________. 18.Roundworms are also called __________. 19.__________ is a flatworm that lives as a parasite in the human intestine. 20.The exoskeleton in arthropods is made of __________. 21.Amphibians lay eggs in __________. 22.Animals that lay eggs are called __________. 23.Animals that give birth to young ones are called __________. 24.Cnidarians possess stinging cells called __________. 25.Echinoderms show __________ symmetry. 32 26.Insects have __________ pairs of legs. 27.Spiders belong to the class __________. 28.Arachnids have __________ pairs of legs and no __________. 29.A characteristic feature of mammals is the presence of __________ glands. 30.The system of naming organisms with two names is called __________ nomenclature. 31.The two parts of a scientific name are __________ and __________. 32.__________ introduced the binomial system of classification. 33.The scientific name is always written in __________. 34.Tapeworm belongs to the phylum __________. 35.The animals in phylum __________ have radial symmetry and spiny skin. 36.Animals whose body temperature changes with the environment are called __________. 37.Animals that maintain constant body temperature are called __________. 38.__________ and __________ are examples of cold-blooded vertebrates. 39.__________ and __________ are examples of warm-blooded vertebrates. 40.The lungs, gills, and skin are the 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___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 41 WORKSHEET EXTRA QUESTION ANSWER: 1. What are vertebrates? Vertebrates are animals that have a backbone or vertebral column. 2. What are invertebrates? Invertebrates are animals that do not have a backbone. 3. Name the five main classes of vertebrates. Pisces, Amphibia, Reptilia, Aves, and Mammalia. 4. Give two examples of vertebrates. Fish and lion. 5. Give two examples of invertebrates. Earthworm and spider. 6. What is binomial nomenclature? It is the scientific system of naming organisms using two Latin names — genus and species. 7. Who introduced binomial nomenclature? Carolus Linnaeus. 8. What are cold-blooded animals? Animals whose body temperature varies with the environment. 9. Give two examples of cold-blooded animals. Fish and frog. 10.What are warm-blooded animals? Animals that maintain a constant body temperature. 11.Give two examples of warm-blooded animals. Birds and humans. 12.What are amphibians? Vertebrates that live both in water and on land. 13.How do amphibians breathe? Through gills, lungs, and skin (at different stages of life). 14.What is the main characteristic of reptiles? They have dry, scaly skin and lay eggs on land. 15.Name two examples of reptiles. Snake and lizard. 16.What are the unique features of birds (Aves)? Birds have feathers, beaks, and lay eggs with hard shells. 17.How do mammals differ from other animals? Mammals give birth to young ones and feed them milk through mammary glands. 18.Name two egg-laying mammals. Duck-billed platypus and echidna. 42 19.What are the three body parts of an insect? Head, thorax, and abdomen. 20.How many legs do insects have? Six legs (three pairs). 21.What is the main function of gills in fish? Gills help in breathing by extracting oxygen from water. 22.What are arachnids? A class of arthropods with four pairs of legs and no antennae (e.g., spiders). 23.What is the body of a mollusc like? Soft and unsegmented, often protected by a hard shell. 24.Give two examples of molluscs. Snail and octopus. 25.What is the role of tentacles in cnidarians? Tentacles help capture food and defend the organism. 26.What is an echinoderm? A marine animal with radial symmetry and a spiny skin (e.g., starfish). 27.Name one example each of Platyhelminthes and Nematoda. Platyhelminthes: Tapeworm Nematoda: Ascaris 28.Which phylum has animals with pores all over their bodies? Porifera (e.g., sponge). 29.What is the function of nephridia in earthworms? Nephridia help in excretion. 30.What is a parasite? An organism that lives on or in another organism (host) and derives nutrition from it. 43 Chapter 4: Photosynthesis And Respiration MULTIPLE CHOICE QUESTION 1. Photosynthesis occurs in which cells of a leaf? (a) Xylem cells (b) Phloem cells (c) Mesophyll cells (d) Guard cells 2. The green pigment in plants required for photosynthesis is: (a) Xanthophyll (b) Chlorophyll (c) Anthocyanin (d) Carotene 3. Which of the following is an end-product of photosynthesis? (a) Ethyl alcohol (b) Oxygen (c) Lactic acid (d) Water 4. The energy currency of the cell is: (a) DNA (b) Glucose (c) ATP (d) Protein 5. Photosynthesis requires: (a) CO₂, Water, Chlorophyll, Sunlight (b) Oxygen only (c) Nitrogen and Chlorophyll (d) Water and Oxygen 6. Which organ in plants controls gaseous exchange? (a) Lenticels (b) Roots (c) Stomata (d) Leaves 7. Guard cells are found around the: (a) Xylem (b) Stomata (c) Phloem (d) Chloroplast 8. The end-products of aerobic respiration are: (a) Alcohol and CO₂ (b) Glucose and ATP (c) CO₂, Water and ATP (d) O₂ and Water 9. Anaerobic respiration in yeast produces: (a) Glucose (b) Oxygen (c) Ethyl alcohol and CO₂ (d) Lactic acid and CO₂ 10.Anaerobic respiration occurs in human muscles during: (a) Sleep (b) Digestion (c) Vigorous exercise (d) Breathing 11.The plant part responsible for water absorption is: (a) Leaves (b) Roots (c) Stem (d) Flowers 12.The vascular tissues in plants are: (a) Xylem and Phloem (b) Chloroplast and Stomata (c) Guard cells and Xylem (d) Mesophyll and Phloem 13.Which factor does NOT affect transpiration? (a) Humidity (b) Wind (c) Soil (d) Temperature 14.The tiny pores in woody stems for gas exchange are: (a) Lenticels (b) Spiracles (c) Stomata (d) Guard cells 44 15.Oxygen in the atmosphere is mostly released by: (a) Human respiration (b) Volcanoes (c) Photosynthesis (d) Combustion 16.In fish, respiration occurs through: (a) Skin (b) Lungs (c) Gills (d) Mouth cavity 17.The mechanical process of breathing is called: (a) Cellular respiration (b) External respiration (c) Photosynthesis (d) Transpiration 18.The gas used by plants during the day is: (a) Oxygen (b) Carbon dioxide (c) Nitrogen (d) Hydrogen 19.The diaphragm helps in: (a) Circulation (b) Respiration (c) Digestion (d) Excretion 20.Which part of the respiratory tract comes after the pharynx? (a) Alveoli (b) Larynx (c) Bronchi (d) Trachea 21.Which organ is called the voice box? (a) Pharynx (b) Trachea (c) Larynx (d) Bronchi 22.The microscopic air sacs in the lungs are: (a) Bronchi (b) Alveoli (c) Bronchioles (d) Spiracles 23.The holes on insect bodies for breathing are called: (a) Stomata (b) Spiracles (c) Lenticels (d) Alveoli 24.Exchange of gases in plants occurs through: (a) Lenticels and stomata (b) Roots and stem (c) Xylem and phloem (d) Seeds and buds 25. The carbon dioxide released by respiration is used in: (a) Germination (b) Photosynthesis (c) Excretion (d) Transpiration Fill in the Blanks 1. The green pigment necessary for photosynthesis is called __________. 2. Photosynthesis mainly takes place in the __________ cells of the leaf. 3. The end-products of photosynthesis are __________ and __________. 4. The tiny openings on the lower surface of leaves are called __________. 5. __________ are the bean-shaped cells that control the opening and closing of stomata. 6. The vascular tissues in plants are __________ and __________. 7. The energy released during respiration is stored in the form of __________. 8. The process of respiration that takes place in the presence of oxygen is called __________ respiration. 9. Anaerobic respiration in yeast produces __________ and __________. 10.In humans, anaerobic respiration during vigorous activity leads to the formation of __________ acid. 11.The respiratory organs of fish are called __________. 45 12.Exchange of gases in woody stems occurs through small pores called __________. 13.Insects breathe through tiny holes on their bodies called __________. 14.The muscular sheet below the lungs in humans is called the __________. 15.During inhalation, the diaphragm moves __________. 16.Air enters the lungs through a tube called the __________. 17.The tiny air sacs in the lungs where gas exchange occurs are called __________. 18.The oxygen in blood is carried by a protein called __________. 19.Photosynthesis is an example of an __________ process. 20. Respiration is a __________ process which breaks down food to release energy. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 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Why do leaves look green? → Due to the presence of chlorophyll, which is a green pigment. 2. Which gas is taken in and which is given out during photosynthesis? → Taken in: Carbon dioxide; Given out: Oxygen. 3. What is the role of chlorophyll in photosynthesis? → Chlorophyll absorbs sunlight which provides energy for photosynthesis. 4. What are the raw materials required for photosynthesis? → Carbon dioxide, water, chlorophyll, and sunlight. 5. What are the end-products of photosynthesis? → Glucose and oxygen. 6. What is the source of energy for photosynthesis? → Sunlight is the source of energy. 7. Where does photosynthesis occur in a plant? → In the mesophyll cells of leaves, inside chloroplasts. 8. Define respiration. → The process of breaking down glucose to release energy is called respira on. 9. What are the two types of respiration? → Aerobic respira on and anaerobic respiration. 10.Give the chemical equation of aerobic respiration. → C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + 38 ATP 11.Give the chemical equation of anaerobic respiration in yeast. → C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ + 2 ATP 12.What is ATP? → ATP stands for Adenosine Triphosphate, which stores and supplies energy in cells. 13.What causes muscle fatigue during heavy exercise? → Accumula on of lac c acid due to anaerobic respira on. 14.Name the respiratory organ in fish. → Gills. 15.Through which pores do plants respire? → Stomata and lenticels. 16.What is transpiration? → The loss of water as water vapour from aerial parts of a plant. 17.State two functions of transpiration. → Maintains sap concentra on and causes cooling. 18.What is external respiration? → The mechanical process of inhaling oxygen-rich air and exhaling carbon dioxide-rich air. 19.What is the respiratory tract? → The path through which air travels to and from the lungs. 20.What is cutaneous respiration? → Exchange of gases through the skin, as seen in frogs. 54
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