63) What organelle synthesizes most of the ATP used by cells? A) lysosomesB) peroxisomesC) ribosomesD) mitochondriaE) Golgi apparatusAnswer: DDiff: 3 Page Ref: 35 64) ________ are membrane-bound organelles containing enzymes that degrade cellular and extracellular debris. ADiff: 4 Page Ref: 35 65) ________ are membrane-bound organelles that contain enzymes like catalase, which catalyzes the breakdown of H2O2to H2O and O2. BDiff: 4 Page Ref: 35 66) Which of the following statements about ribosomes is FALSE? EDiff: 4 Page Ref: 36 67) Which of the organelles contains its own DNA? A) mitochondriaB) lysosomesC) rough endoplasmic reticulumD) smooth endoplasmic reticulumE) Golgi apparatusAnswer: A Diff: 4 Page Ref: 34 15
68) Which of the following is NOT a function of the cytoskeleton? EDiff: 4 Page Ref: 36 69) Which cytoskeletal proteins provide the structural support for microvilli? ADiff: 4 Page Ref: 36 70) Keratin is an example of which type of cytoskeletal protein? BDiff: 4 Page Ref: 36 71) Which of the following filaments is found in cilia and flagella? A) microfilaments onlyB) intermediate filaments onlyC) microtubules onlyD) microfilaments and microtubulesE) microfilaments and intermediate filamentsAnswer: CDiff: 4 Page Ref: 36 72) Which microtubular proteins are responsible for the distribution of chromosomes during cell division? B Diff: 5 Page Ref: 36 16
73) The protein ________ is responsible for generating force as microtubular proteins slide past one another. BDiff: 6 Page Ref: 36 74) ________ are proteins that fuse adjacent cells together to form a nearly impermeable barrier. DDiff: 6 Page Ref: 37
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