Biology Quiz (Topic 2)
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1 Biology Quiz (Topic 2) 1. Which of the following will contribute to the cell theory? I. Living organisms are composed of cells. II. All cells come from pre-existing cells by mitosis. III. Cells are the smallest units of life. A. I only B. II only C. I and III only D. I, II and III 2. A red blood cell is 8 µm in diameter. If drawn 100 times larger than its actual size, what diameter will the drawing be in mm? A mm B. 0.8 mm C. 8 mm D. 80 mm 3. A cell has cytoplasm, a cell wall, naked DNA and ribosomes. Based on this information, what type of cell could this be? A. A cell from a pine tree B. A grasshopper cell C. A human red blood cell D. A bacterium 4. What do diffusion and osmosis have in common? A. They only happen in living cells. B. They require transport proteins in the membrane. C. They are passive transport mechanisms. D. Net movement of substances is against the concentration gradient. 5. The diagram below shows a cell during mitosis. What are the structures and stage of mitosis? Stage of mitosis Structure I Structure II A. metaphase chromatid nuclear membrane B. anaphase centromere plasma membrane C. anaphase chromatid nuclear membrane D. metaphase centromere plasma membrane
2 6. Which of the following characteristics found in a structure necessarily indicates that it is alive? A. The presence of genetic material B. The presence of a lipid bilayer C. Metabolism D. Movement 7. Which of the following does not occur during interphase? A. Replication B. Translation C. Cytokinesis D. An increase in the number of mitochondria 8. Which pair of features is correct for both a human liver cell and an Escherichia coli cell? Human liver cell Escherichia coli cell A. contains DNA associated with protein contains naked DNA B. has 70S ribosomes has 80S ribosomes C. contains mitochondria contains mitochondria D. contains DNA enclosed by a membrane contains DNA associated with protein 9. The electron micrograph below shows an organelle in a eukaryotic cell. What is the area labelled X and what is the type of reaction occurring there? X Reaction A. matrix photolysis B. stroma Krebs cycle C. stroma photolysis D. matrix Krebs cycle 10. What feature do plant cells have but not animal cells? A. Plasma membranes B. Mitochondria C. Cell walls D. 80S ribosomes [Source: Which of the following structures does Escherichia coli have? I. 70S Ribosomes II. Pili III. Nucleus A. I only B. I and II only C. II and III only D. I, II and III
3 12. This question refers to the following micrograph of a liver cell. In which organelle does the production of ATP, due to chemiosmosis, occur? A. A B. B C. C D. D 13. Which functions of life are found in all unicellular organisms? A. growth, response and nutrition B. differentiation, response and nutrition C. metabolism, meiosis and homeostasis D. growth, metabolism and differentiation 14. Which of the following are features of prokaryotes and eukaryotes? 70S ribosomes 80S ribosomes Naked DNA DNA associated with proteins A. prokaryote eukaryote prokaryote eukaryote B. eukaryote prokaryote eukaryote prokaryote C. eukaryote prokaryote prokaryote eukaryote D. prokaryote eukaryote eukaryote prokaryote 15. What route is used to export proteins from the cell? A. Golgi apparatus rough endoplasmic reticulum plasma membrane B. Rough endoplasmic reticulum Golgi apparatus plasma membrane C. Golgi apparatus lysosome rough endoplasmic reticulum D. Rough endoplasmic reticulum lysosome Golgi apparatus
4 16. Which events occur during the G 1 phase and S phase of the cell cycle? G 1 phase S phase A. DNA replicates cell grows B. mitosis begins cell divides C. cell divides mitosis begins D. cell grows DNA replicates 17. In a cell, what is the effect of a large surface area to volume ratio? A. Slower rate of exchange of waste materials B. Faster heat loss C. Faster rate of mitosis D. Slower intake of food 18. The graph below represents the amount of DNA during the cell cycle. Which part of the graph represents metaphase? 19. How does the surface area to volume ratio change with an increase in cell size?
5 20. Below is a micrograph of an E. coli bacterium undergoing reproduction. [Source: The scale bar represents 0.5 µm. How long are both cells in total? A m B m C m D m 21. The diagram below shows a plasma membrane. What is molecule X? A. Cholesterol B. Peripheral protein C. Glycoprotein D. Polar amino acid
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