Cell Test 2.1-2.3 IB SL Biology Version A 1. A mycoplasma is an organism with a diameter between 0.1 and 1.0 μm. What does the organism's size tell you about how it might be classified? A. It must be a single–celled protist. B. It must be a single–celled fungus. C. It could be a bacterium. D. It could be a typical virus. 2. All of the following are part of a prokaryotic cell except A. DNA. B. a cell wall. C. ribosomes. D. an endoplasmic reticulum. 3. The advantage of light microscopy over electron microscopy is that A. light microscopy provides for higher magnification than electron microscopy. B. light microscopy allows one to view all organelles within a cell. C. light microscopy allows one to view processes in living cells. D. light microscopy can be used to view 3D images. 4. Which ratio limits the size of cells? A. The rate of metabolism to mass B. The surface area to volume C. The mass to volume D. The surface area to mass 5. Which of the following is true about binary fission? A. It is a form of sexual reproduction. B. It is a form of asexual reproduction. C. It only occurs in eukaryotic cells. D. It occurs in all cells. 6. Which pair of features is correct for both plant and prokaryotic cells? Plant cell Prokaryotic cell A. Able to change shape Fixed shape B. Contains DNA associated with protein Contains naked DNA C. DNA enclosed by membrane DNA associated with protein D. Chloroplasts may be present Chloroplasts may be present 7. What describes the functions of the following organelles? Golgi apparatus Rough endoplasmic reticulum A. Synthesis of proteins for cell secretion ATP production B. ATP production Synthesis of proteins for cell secretion C. Synthesis of proteins for cell secretion Processing of proteins D. Processing of proteins Synthesis of proteins for cell secretion 8. Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules? A. lipids B. glycogen C. proteins D. nucleic acids 9. A student observes and draws an Amoeba, using the high power lens of a microscope. The diameter of the drawing is 100 mm. The actual diameter of the Amoeba is 100 µm. What is the magnification of the drawing? A. 0.001 B. 100 C. 400 D. 1000 10. A. B. C. D. Which type of organelle or structure is primarily involved in the synthesis of oils, phospholipids, and steroids? ribosome lysosome smooth endoplasmic reticulum Mitochondrion 11. A. B. C. D. Which structure is the site of the synthesis of proteins? rough ER lysosomes ribosomes Golgi vesicles 12. Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. Which of the following organelles contains these hydrolytic enzymes in animal cells? A. chloroplast B. lysosome C. central vacuole D. mitochondria 13. The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this process and therefore abundant in liver cells? A. rough ER B. smooth ER C. Golgi apparatus D. nuclear envelope 14. A. B. C. D. Which organelle often takes up much of the volume of a plant cell? lysosome vacuole mitochondrion Golgi apparatus 15. A. B. C. D. Which organelle is the primary site of cellular respiration in eukaryotic cells? lysosome vacuole mitochondrion Golgi apparatus 16. A. B. C. D. Which organelle contains it’s own DNA and ribosomes? Endoplasmic reticulum vacuole mitochondrion Golgi apparatus 17. A. B. C. D. Thylakoids, DNA, and ribosomes are all components found in vacuoles. chloroplasts. mitochondria. nuclei. 18. Which of the following is NOT a function of life? A. metabolism B. homeostasis C. movement D. nutrition 19. Which of the following statements is correct? A. cells are composed of tissues B. tissues are composed of organs C. organs are composed of organ systems D. organs are composed of tissues 20. A) B) C) D) 21. Which structure–function pair is mismatched? nucleolus; production of ribosomal subunits lysosome; cellular respiration ribosome; protein synthesis Golgi; protein modification In what way are eukaryotic chromosomes different from prokaryotic chromosomes? Eukaryotic chromosomes Prokaryotic chromosomes A. Protein is present Protein is absent B. DNA is present DNA is absent C. DNA is absent DNA is present D. Nucleus is absent Nucleus is present 22. Which of the following statements is true? A. all body cells in a multicellular organism contain the same DNA. B. all body cells in a multicellular organism perform the same functions. C. body cells in a multicellular organism do not specialize D. cells in a multicellular organism specialize because they have different DNA. Name_____________________________________________________________________________________ Hour_______________ Cell Test 2.1-2.3 IB SL Biology 1. The electron micrographs below show mitochondria in longitudinal section. The mitochondrion in A is from a bat pancreas cell and that in B is from a mouse liver cell. (a) Annotate the micrographs to show two similarities in the structure of the mitochondria. (2) (b) The mitochondria differ in size. State two other differences that are visible in the mitochondria. (2) (c) Predict, with two reasons, which of the mitochondria would have been able to produce ATP energy at a greater rate. (2) 2. (a) State the typical size of (i) a bacterium (1) (ii) an average eukaryotic cell (1) (b) Explain the importance of the surface area to volume ratio in limiting cell size. (2) 3. Distinguish between the structure of plant and animal cells. (6) 4. Outline the cell theory, discussing at least one area of research that supports the theory. (4) 5. Draw and label a diagram of the ultrastructure of E.coli. (7) 6. (a) Label the structures indicated in the diagram below. (5) (b) Deduce, with a reason, whether this is a prokaryotic or eukaryotic cell. (1) (c) If the nucleus measures 5 mm in length, and the magnification is X 15,000, what is the actual length of the nucleus? Show your work. (1) 7. Outline one therapeutic use of stem cells. (6)