What organelle synthesizes most of the atp used by

63) What organelle synthesizes most of the ATP used by cells?
A) lysosomes
B) peroxisomes
C) ribosomes
D) mitochondria
E) Golgi apparatus
Answer: D
Diff: 3 Page Ref: 35
64) ________ are membrane-bound organelles containing enzymes that degrade cellular and
extracellular debris.
A
Diff: 4 Page Ref: 35
65) ________ are membrane-bound organelles that contain enzymes like catalase, which
catalyzes the breakdown of H
2
O
2
to H
2
O and O
2
.
B
Diff: 4 Page Ref: 35
66) Which of the following statements about ribosomes is FALSE?
E
Diff: 4 Page Ref: 36
67) Which of the organelles contains its own DNA?
A) mitochondria
B) lysosomes
C) rough endoplasmic reticulum
D) smooth endoplasmic reticulum
E) Golgi apparatus
Answer: A
Diff: 4 Page Ref: 34
15

68) Which of the following is NOT a function of the cytoskeleton?
E
Diff: 4 Page Ref: 36
69) Which cytoskeletal proteins provide the structural support for microvilli?
A
Diff: 4 Page Ref: 36
70) Keratin is an example of which type of cytoskeletal protein?
B
Diff: 4 Page Ref: 36
71) Which of the following filaments is found in cilia and flagella?
A) microfilaments only
B) intermediate filaments only
C) microtubules only
D) microfilaments and microtubules
E) microfilaments and intermediate filaments
Answer: C
Diff: 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.
B
Diff: 6 Page Ref: 36
74) ________ are proteins that fuse adjacent cells together to form a nearly impermeable barrier.
D
Diff: 6 Page Ref: 37