Select the correct statement about Plasma membrane 1. An outermost envelope-like membrane or a structure, which surrounds the cell and its organelles 2. The plasma membrane is a flexible, lipid trilayer a) 1 only b) 2 only c) both 1 and 2 d) none of the above Kitchen of the cell is A. mitochondria B. endoplasmic reticulum C. chloroplast D. Golgi apparatus The proteins and lipids, essential for building the cell membrane, are manufactured by: A. Endoplasmic reticulum B. Golgi apparatus C. Mitochondria D. Peroxisomes Amoeba acquires its food through A. Endocytosis B. Exocytosis C. Transpiration D. Both A & B Which of the following cell organelles is absent in animal cells and present in a plant cell? a) Mitochondria b) Cell wall c) Cytoplasm d) Vacuoles Which of the following statements is true about the Golgi bodies? a) It is a sac-like organelle b) It is located near the nucleus c) It helps in transporting the particles throughout the cell. d) All of the above SER differ from RER in A. Presence of glucose molecules B. Absence of glucose molecule C. Absence of granules on surface D. Absence of ribosome on surface The colourless plastids are called as .......... and their main function is .......... a) Chloroplasts, photosynthesis b) Leucoplasts, respiration c) Chromoplasts, protection from sunlight d) Leucoplasts, storage of food Which among the following statements is/are correct 1. Chromosomes are composed of DNA and protein 2. The nucleus contains chromosomes, which are visible as rodshaped structures a) 1 only b) 2 only c) both 1 and 2 d) none of the above Which among the following statements is/are correct 1. The SER helps in the manufacture of fat molecules, or lipids 2. RER helps in protein manufacture a) 1 only b) 2 only c) both 1 and 2 d) none of the above Which among the following pairs is/are correct 1. Golgi apparatus – formation of lysosomes 2. Lysosomes - filled with digestive enzymes 3. Mitochondria – ATP generation 4. endoplasmic reticulum - network system a) 1 only b) 2 and 3 only c) 1 and 2 only d) all of the above Which among the following statements is/are correct 1. Vacuoles are small sized in plant cells while animal cells have very large vacuoles 2. play important roles in expelling excess water and some wastes from the cell. a) 1 only b) 2 only c) both 1 and 2 d) none of the above Which among the following statements is Incorrect a) The process of cell division by which most of the cells divide for growth is called mitosis b) Specific cells of reproductive organs or tissues in animals and plants divide to form gametes c) When a cell divides by meiosis it produces two new cells d) None of the above The undefined nuclear region of prokaryotes is known as A. Nucleus B. Nucleoid C. Nucleolus D. Nucleic acid Which one of the following cell organelles mainly functions as storehouse of digestive enzymes? A. Desmosome B. Ribosome C. Lysosome D. Vacuoles Which one of the following plant plastids stores starch, oil and protein granules? (a) Chloroplast (b) Leucoplast (c)Chromoplast (d) Xanthoplast Which among the following statement is Incorrect a) If a cell is placed in a hypertonic solution, Exosmosis takes place b) If a cell is placed in a hypotonic solution, Endosmosis takes place c) The osmotic pressure is the minimal pressure required to prevent the inward flow of a solution's pure solvent across a semipermeable barrier d) None of the above Difference between Osmosis and Diffusion Which among the following statements is/are correct 1. Apical meristem is present at the growing tips of stems and roots and increases the length of the stem and the root 2. The girth of the stem or root increases due to lateral meristem (cambium). a) 1 only b) 2 only c) both 1 and 2 d) none of the above Which among the following pairs is/are correct 1. Phloem - transports food 2. Sclerenchyma - makes the plant hard and stiff 3. Xylem - transport water and minerals a) 1 and 2 b) 2 and 3 c) 1 and 3 d) 1, 2 and 3 Which among the following are simple tissues 1. Parenchyma 2. collenchyma 3. Xylem 4. Sclerenchyma a) 1, 2 and 3 b) 2, 3 and 4 c) 1, 2 and 4 d) 1, 2, 3 and 4 Which among the following statements is/are correct 1. Nervous tissue is made of neurons that receive and conduct impulses 2. Striated, unstriated and cardiac are three types of muscle tissues 3. areolar tissue, adipose tissue, bone are connective tissues a) 1 and 2 b) 2 and 3 c) 1 and 3 d) 1, 2 and 3 Which among the following statements is/are correct 1. Two bones can be connected to each other by ligament 2. Tendons connect muscles to bones a) 1 only b) 2 only c) both 1 and 2 d) none of the above Which among the following is INCORRECT about Ligament a) This tissue is very elastic b) It has considerable strength c) Ligaments contain very little matrix d) It has limited flexibility Bone matrix is rich in A. Fluoride and calcium B. Calcium and phosphorus C. Calcium and potassium D. Phosphorus and potassium Which of the following helps in repair of tissue and fills up the space inside the organ? A. Tendon B. Adipose tissue C. Areolar D. Cartilage Which among the following pairs is/are correct 1. Simple squamous epithelial cells - oesophagus and the lining of the mouth 2. columnar epithelium - inner lining of the intestine, 3. Cuboidal epithelium - In the respiratory tract a) 1 and 2 b) 2 and 3 c) 1 and 3 d) 1, 2 and 3 Type of epithelial tissue present on places where the exchange of materials/gases occur selectively is: A. Simple Squamous B. Stratified squamous C. Cuboidal D. Cuboidal Which of the following Muscles present in our limbs move when we want them to, and stop when we so decide a) Striated b) unstriated c) Cardiac d) All the above Which muscles act involuntarily ? i- Striated muscles ii- Smooth muscles iii- Cardiac muscles iv- Skeletal muscles A. i & ii B. ii & iii C. iii & iv D. i & iv Diseases that spread from one person to another are called _______ a) Communicable diseases b) Degenerative diseases c) Non-communicable diseases d) None of the above Alzheimer’s and osteoporosis are examples of _______. a) Communicable diseases b) Degenerative diseases c) Non-communicable diseases. d) None of the above Which of the following vitamins functions as both hormone and visual pigment? a) Thiamine b) Retinal c) Riboflavin d) Folic acid For the prevention of dehydration, the patient is advised to take Oral Rehydration Solution (ORS). The main components of ORS solution are: A. Sodium chloride, sodium bicarbonate, potassium chloride, glucose, sucrose and water B. Sodium chloride, sodium carbonate, potassium chloride, glucose,sucrose and water C. Sodium carbonate, sodium bicarbonate, potassium chloride, glucose,sucrose and water D. None Energy derived from the food we eat is stored in our body in the form of a) Glucose b) Starch c) Glycogen d) none of the above Which among the following is the function of the guard cells a) essential for photosynthesis b) The opening and closing of the pore c) Reduction of carbon dioxide to carbohydrates. d) Absorption of light energy You must have observed that a fruit when unripe is green but it becomes beautifully coloured when ripe. According to you, what is the reason behind this colour change? A. Chloroplasts change to chromoplasts B. Chromoplasts change to chromosomes C. Chloroplasts change to chromosomes D. Chromoplasts change to chloroplasts Raw materials required in the autotrophic mode of nutrition involves: i. Carbon dioxide and water ii. Chlorophyll iii. Nitrogen iv. Sunlight A. (i), (ii) and (iii) B. (i) and (ii) C. (i), (ii) and (iv) D. All (i), (ii), (iii) and (iv) Select the correct pair/pairs 1. Amylase Enzyme: They break down starches and carbohydrates into sugars. 2. Pepsin: breaking down protein in the food into smaller particles known as peptide and amino acids 3. Lipase Enzyme: digestion of lipids a) one pair b) Two pairs c) Three pairs d) none Which among the following statements is/are correct 1. The exit of food from the stomach is regulated by a sphincter muscle 2. The food coming from the stomach is acidic a) 1 only b) 2 only c) both 1 and 2 d) none of the above Breakdown of pyruvate using oxygen takes place in a) Mitochondria b) Endoplasmic reticulum c) Cytoplasm d) Nucleus Glycolysis process occurs in which part of the cell? (a) Cytoplasm (b) Nucleus (c) Mitochondria (d) Chloroplast Which among the following statements is/are correct 1. In anaerobic respiration pyruvate may be converted into ethanol and carbon dioxide 2. In aerobic respiration pyruvate may be converted into carbondioxide and water a) 1 only b) 2 only c) both 1 and 2 d) none of the above Which among the following statements is/are correct 1. The blood brings oxygen from the rest of the body for release into the alveoli 2. carbon dioxide in the alveolar air is taken up by blood in the alveolar blood vessels to be transported to all the cells in the body a) 1 only b) 2 only c) both 1 and 2 d) none of the above Select the correct statement a) haemoglobin has a very high affinity for carbon dioxide b) Carbon dioxide is more soluble in water than oxygen c) the rate of breathing in aquatic organisms is much slower than that seen in terrestrial organisms d) all the above Select the correct statement a) De-oxygenated blood comes from the body to the upper chamber on the right atrium b) Oxygen-rich blood from the lungs comes to the thinwalled upper chamber of the heart on the left atrium. c) Valves ensure that blood does not flow backwards d) All the above Identify 1. circulate around the body 2. helps to clot the blood at the points of injury. 3. Present in blood a) Serum b) WBC c) Platelets d) RBC Each capillary cluster in the kidney is associated with the cup-shaped end of a coiled tube called ---------that collects the filtrate a) Bowman’s capsule b) Glomerulus c) Nephron d) renal vein Which part of brain specialised for hearing, smell, sight a) Hindbrain b) Forebrain c) Midbrain d) none Which among the following statements is/are correct 1. involuntary actions including blood pressure, salivation and vomiting are controlled by the medulla in the hindbrain. 2. activities like walking in a straight line, riding a bicycle, picking up a pencil. These are possible due to a part of the hind-brain called the cerebellum a) 1 only b) 2 only c) both 1 and 2 d) none of the above Select the Incorrect statement a) Thyroxin regulates carbohydrate, protein and fat metabolism in the body b) Insulin regulate blood sugar levels c) Adrenal gland Stimulates pituitary gland to release hormones d) Pituitary gland Stimulates growth in all organs Which of the following is a plant hormone? a) Insulin b) Thyroxin c) Oestrogen d) Cytokinin. select the Incorrect statement a) female gamete present in the anther b) The male germ-cell is produced by pollen grain c) fusion of the germ-cells or fertilisation gives us the zygote d) zygote divides several times to form an embryo within the ovule select the correct statements 1. formation of germ-cells or sperms takes place in the testes 2. sperms formed are delivered through the vas deferens 3. The secretions of prostate and the seminal vesicles makes sperm transport easier a) 1 and 2 b) 1 and 3 c) 2 and 3 d) 1, 2 and 3 A zygote which has an X-chromosome inherited from the father will develop into a (a) either boy or girl (b) boy (c) girl (d) X-chromosome does not influence the sex of a child. select the Incorrect statement a) Evolution can be worked out by the study of not just living species, but also fossils. b) Speciation may take place when variation is combined with geographical isolation c) Variations in the species may confer survival advantages d) Changes in the non-reproductive tissues caused by environmental factors are inheritable. Which of the following is not an example of homologous organs a) Our arm and a dog's fore-leg b) Our teeth and an elephant's tusk c) Potato and runners of grass d) wings in flying animals like bats, birds, and insects Paramecium and euglena belongs to which kingdom? A. Monera B. Protista C. Fungi D. Plantae Fungus and algae both are placed under the same division “Thallophyta”.What is the reason that both share the same group? A. Both are autotrophic B. Both are saprophytic C. Plant body in both is not differentiated into root, stem and leaves. D. Both have false roots Plants that produce flowers and bear their seeds in fruits are called A. Gymnosperms B. Phanerogams C. Cryptogams D. Angiosperm Spirogyra, Ulothrix, Cladophora and Chara, are examples of A. THALLOPHYTA B. BRYOPHYTA C. PTERIDOPHYTA D. ANGIOSPERMS identify They are warm-blooded animals They have well-developed flight muscles that help during the flight Their forelimbs are modified into wings A. Reptiles B. Amphibians C. Aves D. Pisces Most paramecium move with the help of_______ A. Villi B. Oral grove C. Cilia D. Stationary Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following: A. hyla, rana, draco B. whale, dolphin, turtle C. labeo, chameleon, salamander D. hippocampus, exocoetus, anabas Funaria belongs to the division ______ A. Gnetophyta B. Bryophyta C. Magnoliophyta D. Amniota Which one is the most striking or (common) character of the vertebrates? A. Presence of notochord B. Presence of triploblastic condition C. Presence of gill pouches D. Presence of coelom CDS-NDA 2023 BIOLOGY PYQ