SAS Science: Cells- The Basic Unit of Life (Ch. 4) Name: I. Date: Period: Using Science Skills For items 1-8, use the diagram of the ANIMAL CELL below to identify the parts of the cell from the list provided. Fill in the correct letter or letters on your scantron. a. Nucleus b. Rough Endoplasmic Reticulum c. Smooth Endoplasmic Reticulum d. Nucleolus e. Ribosomes ab. Nuclear Membrane ac. Golgi complex ad. Chromosomes ae. Cell membrane bc. Cell wall bd. Lysosome be. Mitochondria cd. Cytoplasm II. Multiple Choice Fill in the letter of the correct answer on the scantron. 9. The smallest structural and functional unit of all living things is a(n) a. Atom c. nucleus b. Organelle d. cell 10. Where do cells come from? a. Organelles c. animacules b. other cells d. blood 11. Plant cells are supported by a rigid structure that surrounds the cell membrane called a a. Golgi complex c. cell wall b. Cytoskeleton d. ribosome 12. In plant and bacterial cells, photosynthesis takes place in a. Chlorophyll c. ribosomes b. Chloroplasts d. the nucleus 13. The protective barrier surrounding the animal cell, which protects its contents from the cell’s environment, is the a. Cytoskeleton c. cell membrane b. cell wall d. central vacuole 14. In plants, the vesicle that stores water and liquids and helps support the cell is called the a. large central vacuole c. large central vesicle b. endoplasmic reticulum d. lysosome 15. A group of cells working together to perform the same function makes up a(n) a. organism c. tissue b. organ system d. structure 16. An organ consists of a. two or more tissues c. two or more systems b. a group of cells d. nerve and muscles 17. DNA is found in what structure in the nucleus? a. Chromatin c. centromere b. Chromosome d. nucleolus 18. Chromosomes are made up of what? a. one chromatin and one centromere b. one chromatin and two centromeres c. two chromatins and one centromere d. two chromatins and two centromeres 19. An organ system has a. only one kind of tissue c. two or more organs b. two or more functions d. only one type of cell 20. How many cells are needed for a unicellular organism to perform all necessary life functions? a. One c. thousands b. Two d. trillions 21. The activity a cell performs is its a. Structure c. function b. System d. differentiation 22. The parts of an organism are arranged in a(n) a. Structure c. function b. System d. organ 23. According to the cell theory, what makes up all living things? a. only one cell c. more than one cell b. one or more cells d. a system of cells 24. Where is DNA stored in the eukaryotic cell? a. in the cytoplasm c. in the ribosome b. in the nucleus d. in the lysosome 25. The fluid inside every cell, and almost all of the cells contents, is called the a. Nucleus c. organelles b. Membrane d. cytoplasm 26. According to the cell theory a. most organisms are made up of cells b. some cells are not in an organism c. cells come from existing cells d. only animals are made up of cells 27. A cell with a membrane-bound nucleus is a. Unicellular c. prokaryotic b. Multicellular d. eukaryotic 28. A eukaryotic cells ability to differentiate to become specialized cells helps tissues, organs, and systems a. grow large in size c. work more efficiently b. produce larger cells d. stay healthy 29. Prokaryotes are different from eukaryotes because they contain a. no nucleus and a flagellum b. a nucleus and a flagellum c. no nucleus and a cell wall d. a nucleus and a flagellum 30. Proteins are made from amino acids in the smallest organelle, which is called a(n) a. Mitochondria c. ribosome b. Lysosome d. chloroplast 31. A network of protein in the cytoplasm of some cells, which defines the shape of animal cells, is called the a. Cell wall c. Golgi complex b. Cytoskeleton d. nucleus 32. The plant organelle where photosynthesis occurs is a(n) a. Mitochondria c. ribosome b. Lysosome d. chloroplast 33. Digestive enzymes are released, that destroy worn-out organelles and get rid of waste materials from the a. Cytoskeleton c. ribosome b. Lysosome d. Golgi complex 34. In prokaryotic cells, DNA is stored in the a. cytoplasm c. Golgi complex b. cytoskeleton d. nucleus 35. A group of organs with a specific job inside the body are called a(n) a. Organism c. cell b. Organ d. organ system 36. Maze like structure that contains ribosomes is called the a. Rough endoplasmic reticulum b. Smooth endoplasmic reticulum c. Rough Golgi complex d. Smooth Golgi complex 37. The nucleus is surrounded by a. The cell membrane c. The endoplasmic reticulum b. The nuclear membrane d. The Golgi complex 38. Which organelle is NOT found in the plant cell? a. Cell wall c. mitochondria b. Lysosome d. vacuole 39. Which organelle is NOT found in the animal cell? a. Cell membrane c. Golgi complex b. Nucleus d. chloroplast 40. The nucleolus contains a. Ribosomes c. nucleic acid b. Chromosome d. DNA NAME: III. Period Date Short Answer (5 points each) Write an answer to each of the following questions. 41 Describe the function of the nuclear membrane, chromatin, and nucleolus. 42. What is one advantage of having specialized cardiac muscle cells? What is one disadvantage? 43. In plant cells, what is the relationship between mitochondria and chloroplast? 44. Why did Hooke think that cells existed only in plants and fungi and not in animal cells? Explain his discovery and observations.