Test Bank Memmlers Structure and Function of the Human Body 12th Edition Cohen.

Chapter 03: Cells MULTIPLE CHOICE 1. The plasma membrane of a cell is composed of a. phospholipid molecules b. cholesterol molecules c. protein molecules d. all of the above ANS: D DIF: Memorization REF: p. 42 OBJ: 1 TOP: Parts of the cell 2. The molecules in the plasma membrane that serve as receptors for other molecules are the a. phospholipid molecules b. cholesterol molecules c. protein molecules d. all of the above ANS: C DIF: Memorization REF: p. 42 OBJ: 1 TOP: Parts of the cell 3. The molecules that stabilize the cell membrane and prevent it from breaking easily are the a. phospholipid molecules b. cholesterol molecules c. protein molecules d. all of the above ANS: B DIF: Memorization REF: p. 42 OBJ: 1 TOP: Parts of the cell 4. An important function of the cell membrane is a. the production of energy b. aiding in protein formation c. acting as an ―identification tag‖ for the cell d. none of the above ANS: C DIF: Memorization REF: p. 42 OBJ: 1 TOP: Parts of the cell 5. The organelles that are the ―protein factories‖ for the cell are the a. ribosomes b. mitochondria c. Golgi apparatus d. centrioles ANS: A DIF: Memorization REF: p. 44 OBJ: 1 TOP: Parts of the cell 6. The organelles that are the ―power plants‖ of the cell are the a. ribosomes b. mitochondria c. Golgi apparatus d. centrioles ANS: B DIF: Memorization REF: p. 46 OBJ: 2 TOP: Parts of the cell 7. The organelles that are the ―digestive bags‖ of the cell are the a. flagella b. endoplasmic reticulum c. Golgi apparatus d. lysosomes ANS: D DIF: Memorization REF: p. 46 OBJ: 2 TOP: Parts of the cell 8. The organelles that consist of a network of canals that wind through the cytoplasm are the a. endoplasmic reticulum b. flagella c. Golgi apparatus d. lysosomes ANS: A DIF: Memorization REF: p. 44 OBJ: 2 TOP: Parts of the cell 9. The organelles that are flattened sacs that chemically process molecules are the a. endoplasmic reticulum b. flagella c. Golgi apparatus d. lysosome ANS: C DIF: Memorization REF: p. 45 OBJ: 2 TOP: Parts of the cell 10. The organelles that are rod-shaped structures made of fine tubes and are important in cell division are the a. ribosomes b. mitochondria c. Golgi apparatus d. centrioles ANS: D OBJ: 2 DIF: Memorization TOP: Parts of the cell REF: p. 46 11. The structure in the cell that controls most of the activities of the cell is the a. cilia b. nucleus c. nucleolus d. ribosome ANS: B OBJ: 1 DIF: Memorization TOP: Parts of the cell REF: p. 47 12. Small, hairlike structures on the exposed side of some cells are called the a. cilia b. nucleus c. nucleolus d. endoplasmic reticulum ANS: A DIF: Memorization REF: p. 47 OBJ: 1 TOP: Parts of the cell 13. The structure in the cell that programs the formation of ribosomes is the a. cilia b. nucleus c. nucleolus d. endoplasmic reticulum ANS: C DIF: Memorization REF: p. 47 OBJ: 1 TOP: Parts of the cell 14. The long, taillike structure that propels sperm cells is the a. endoplasmic reticulum b. cilia c. Golgi apparatus d. flagellum ANS: D OBJ: 1 DIF: Memorization TOP: Parts of the cell REF: p. 47 15. Which of the following transport processes does not require cell energy? a. Osmosis b. Dialysis c. Pinocytosis d. Both a and b above ANS: D DIF: Memorization REF: p. 50 OBJ: 3 TOP: Movement of substances through cell membranes 16. Which of the following transport processes requires cell energy? a. Osmosis b. Dialysis c. Pinocytosis d. Both a and b above ANS: C DIF: Memorization REF: p. 52 OBJ: 3 TOP: Movement of substances through cell membranes 17. The diffusion of water through a selectively permeable membrane is a process called a. osmosis b. dialysis c. filtration d. pinocytosis ANS: A DIF: Memorization REF: p. 50 OBJ: 3 TOP: Movement of substances through cell membranes 18. The diffusion of solutes through a selectively permeable membrane is a process called a. osmosis b. dialysis c. filtration d. pinocytosis ANS: B DIF: Memorization REF: p. 50 OBJ: 3 TOP: Movement of substances through cell membranes 19. The process used by the cell membrane to actively take in fluids and dissolved substances is a. osmosis b. dialysis c. filtration d. pinocytosis ANS: D DIF: Memorization REF: p. 52 OBJ: 3 TOP: Movement of substances through cell membranes 20. The process that uses hydrostatic pressure to move water and solutes through a membrane is a. osmosis b. dialysis c. filtration d. pinocytosis ANS: C DIF: Memorization REF: p. 51 OBJ: 3 TOP: Movement of substances through cell membranes 21. The process that actively traps solids in the cell membrane and brings them into the cell is a. pinocytosis b. phagocytosis c. ion pumps d. none of the above ANS: B DIF: Memorization REF: p. 52 OBJ: 3 TOP: Clinical Applications: Tonicity 22. If a blood cell is placed in an isotonic solution: a. water will enter the cell b. water will leave the cell c. it will crenate d. none of the above ANS: D DIF: Memorization REF: p. 50 OBJ: 3 TOP: Clinical Applications: Tonicity 23. If a blood cell is placed in a hypotonic solution: a. water will enter the cell b. water will leave the cell c. it will crenate d. both b and c above ANS: A DIF: Memorization REF: p. 50 OBJ: 3 TOP: Clinical Applications: Tonicity 24. If a blood cell is placed in a hypertonic solution: a. water will enter the cell b. water will leave the cell c. it will crenate d. both b and c above ANS: D DIF: Memorization REF: p. 50 OBJ: 3 TOP: Clinical Applications: Tonicity 25. Because of complementary base pairing, if one side of a DNA molecule was ATCCGTAATC, the other side of the molecule would be a. ATCCGCTAATC b. AUCCGCUAATC c. UAGGCGAUUAG d. TAGGCATTAG ANS: D DIF: Synthesis REF: p. 53 TOP: Cell reproduction and heredity OBJ: 4 26. Protein synthesis consists of the process of a. mitosis b. translation c. transcription d. both b and c above ANS: D DIF: Memorization OBJ: 4 TOP: Cell reproduction and heredity REF: pp. 55-56 27. Chromosomes align themselves in the center of the cell during a. interphase b. prophase c. metaphase d. telophase ANS: C DIF: Memorization REF: p. 57 OBJ: 5 TOP: Cell reproduction and heredity 28. Chromosomes form chromatin and the nuclear envelope reforms during a. interphase b. prophase c. metaphase d. telophase ANS: D DIF: Memorization REF: p. 58 OBJ: 5 TOP: Cell reproduction and heredity 29. The DNA replicates itself during a. interphase b. prophase c. anaphase d. telophase ANS: A DIF: Memorization REF: p. 56 OBJ: 5 TOP: Cell reproduction and heredity 30. Chromosomes are pulled by spindle fibers to opposite sides of the cell during a. interphase b. prophase c. anaphase d. telophase ANS: C DIF: Memorization REF: pp. 57-58 OBJ: 5 TOP: Cell reproduction and heredity 31. Chromatin becomes organized into chromosomes during a. interphase b. prophase c. anaphase d. telophase ANS: B DIF: Memorization REF: p. 57 OBJ: 5 TOP: Cell reproduction and heredity 32. The following is not one of the main parts of a cell a. plasma membrane b. interstitial fluid c. cytoplasm d. nucleus ANS: B DIF: Memorization REF: p. 42 OBJ: 1 TOP: Parts of the cell 33. Which of the following is not a function of the cell membrane? a. Acting as the outer boundary for the cell b. Acting as the gateway for the cell c. Acting as a receptor site for hormones of the body d. All of the above are functions of the cell ANS: D DIF: Memorization REF: p. 42 OBJ: 1 TOP: Plasma membrane 34. Ribosomes are a. composed mostly of a type of nucleic acid b. sometimes attached to mitochondria forming ―rough‖ mitochondria c. important sites for energy release d. none of the above ANS: A DIF: Memorization REF: p. 54 OBJ: 2 TOP: Ribosomes 35. Which of the following is not a function of the endoplasmic reticulum? a. Receive proteins after they have been made by the ribosome b. Produce new cell membrane for the cell c. Digest microbes that may have entered the cell d. Provide a route of transport from one part of the cell to another ANS: C DIF: Memorization REF: p. 44 OBJ: 2 TOP: Endoplasmic reticulum 36. Which of the following is not true of mitochondria? a. Make protein for the cell b. Are the site of cellular respiration c. Are composed of two membranous sacs, one inside the other d. Contain DNA ANS: A DIF: Memorization REF: p. 46 OBJ: 2 TOP: Mitochondria 37. The main difference between active and passive transport is a. the amount of material moved b. the direction in which the material is moved c. whether cell energy is required d. the type of cell involved ANS: C DIF: Memorization REF: p. 48 OBJ: 3 TOP: Movement of substances through cell membranes 38. If a 5% glucose solution were separated from a 10% glucose solution by a membrane that was permeable to both water and glucose a. glucose would move from the 5% solution to the 10% solution b. water would move from the 5% solution to the 10% solution c. the movement of glucose between the two solutions would be equal d. water would move from the 10% solution to the 5% solution ANS: B DIF: Memorization REF: pp. 48-49 OBJ: 3 TOP: Diffusion 39. DNA differs from RNA in that a. DNA is double stranded b. DNA contains the base uracil c. DNA contains the base adenine d. all of the above ANS: A DIF: Memorization REF: p. 55 OBJ: 4 TOP: RNA molecules and protein synthesis 40. The largest human cell is about how much larger than the smallest human cell? a. About 20 times larger b. About 10 times larger c. About 5 times larger d. About twice as large ANS: A DIF: Memorization REF: p. 41 OBJ: 1 TOP: Cells—Size and shape 41. Another term for tissue fluid is a. plasma b. cytoplasm c. interstitial fluid d. blood ANS: C DIF: Memorization REF: p. 42 OBJ: 1 TOP: Cells—Composition 42. Which organelle contains nucleic acids? a. Ribosomes b. Golgi apparatus c. Mitochondria d. Both a and c above ANS: D DIF: Memorization REF: p. 44 OBJ: 2 TOP: Parts of the cell 43. Which organelle is not found on the outer surface of the cell membrane? a. Centriole b. Flagellum c. Cilia d. All of the above structures are found on the outer surface of the cell membrane ANS: A DIF: Memorization REF: pp. 46-47 OBJ: 2 TOP: Parts of the cell 44. Which of the following is not true of ion pumps? a. Found in the plasma membrane b. Moves material down a concentration gradient c. Is made of protein d. All of the above are true of ion pumps ANS: B DIF: Memorization REF: p. 52 OBJ: 3 TOP: Active transport processes 45. The process of DNA replication occurs during which phase of mitosis? a. Prophase b. Metaphase c. Anaphase d. None of the above ANS: D DIF: Memorization REF: pp. 56-57 OBJ: 5 TOP: DNA replication 46. Because of complementary base pairing, if one side of a DNA molecule was ATCCGTAATC, the messenger RNA strand would be a. ATCCGCTAATC b. AUCCGCUAATC c. UAGGCGAUUAG d. TAGGCATTAG ANS: C DIF: Synthesis REF: p. 53 OBJ: 4 TOP: RNA molecules and protein synthesis 47. The largest cell in the body is a. a blood cell b. a brain cell c. a skin cell d. an ovum ANS: D OBJ: 1 DIF: Memorization TOP: Cells—Size and shape REF: p. 41 48. In a cell, the fluid within the cell membrane is called and the fluid outside the cell membrane is called: . a. cytoplasm, interstitial fluid b. interstitial fluid, tissue fluid c. tissue fluid, interstitial fluid d. interstitial fluid, cytoplasm ANS: A DIF: Memorization REF: p. 42 OBJ: 1 TOP: Cells—Composition 49. Which of the following is not part of the cytoskeleton of the cell? a. Microtubules b. Endoplasmic reticulum c. Microfilaments d. All of the above are part of the cytoskeleton ANS: B DIF: Memorization REF: p. 43 OBJ: 1 TOP: Parts of the cell 50. Small, fingerlike projections of the plasma membrane that increase the surface area of the cell and make absorption more efficient are called a. cilia b. ion pumps c. microvilli d. flagella ANS: C DIF: Memorization REF: p. 46 OBJ: 2 TOP: Cell extensions 51. Which of the following is not true of the process of transcription? a. It occurs at the ribosome. b. It occurs in the nucleus. c. It forms a messenger RNA molecule. d. Both a and c are not true. ANS: A DIF: Memorization REF: p. 55 OBJ: 4 TOP: Transcription 52. The function of transfer RNA is to a. bring the ribosome to the endoplasmic reticulum b. bring the messenger RNA to the ribosome c. bring the RNA to the DNA for transcription d. bring amino acids to the ribosome ANS: D DIF: Memorization REF: p. 56