Chapter 10 (LaunchPad)

Myosin motor proteins use ATP to... a) carry vesicles along a microfilament within a cell in a minus-to-plus direction. b) carry vesicles along a microtubule within a cell in a minus-to-plus direction. c) carry vesicles along a microtubule within a cell in a plus-to-minus direction. d) slide along intermediate filaments to contract muscle cells. e) carry vesicles along a microfilament within a cell in a plus-to-minus direction.

a) carry vesicles along a microfilament within a cell in a minus-to-plus direction.

Cilia are... (Select all that apply.) a) specialized organelles found in some epithelial cells. b) used by epithelial cells to move substances along cell surfaces. c) used by sperm cells for locomotion. d) None of the other answer options is correct.

a) specialized organelles found in some epithelial cells. b) used by epithelial cells to move substances along cell surfaces.

The basal lamina... a) is a cell-rich layer. b) is a specialized extracellular matrix found beneath epithelial tissues. c) is found on top of the epidermis of the skin. d) links to epithelial cells through tight junctions. e) All of these choices are correct.

b) is a specialized extracellular matrix found beneath epithelial tissues.

Cells with cilia or flagella rely mainly on __________ to facilitate their movement. a) intermediate filaments b) microtubules c) microfilaments

b) microtubules

Which of the following enable the movement of cells? a) microtubules b) microtubules and microfilaments c) microfilaments d) intermediate filaments e) microfilaments and intermediate filaments

b) microtubules and microfilaments

Which of the following statements about intracellular transport is TRUE? a) Myosin and kinesin move substances toward the "minus end" of microtubules and microfilaments, respectively. b) Kinesin and myosin move substances toward the "minus end" of microtubules and microfilaments, respectively. c) Kinesin and myosin move substances toward the "plus end" of microtubules and microfilaments, respectively. d) Myosin and kinesin move substances toward the "plus end" of microtubules and microfilaments, respectively.

c) Kinesin and myosin move substances toward the "plus end" of microtubules and microfilaments, respectively.

Which one of the following statements about intracellular transport is TRUE? a) Kinesin and myosin move substances along microtubules. b) Kinesin and dynein move substances along microfilaments. c) Myosin moves substances along microfilaments. d) Myosin and dynein move substances along microfilaments.

c) Myosin moves substances along microfilaments.

Which of the following is a component of the extracellular matrix made by a plant cell? a) cadherin b) collagen c) cellulose d) All of these choices are correct.

c) cellulose

Which one of the following CORRECTLY lists components of extracellular matrix found in animals? a) lignin, pectin, and keratin b) cellulose, pectin, lignin c) collagen, laminin, and elastin d) collagen, lignin, laminin, and pectin

c) collagen, laminin, and elastin

Which one of the following statements about intracellular transport is TRUE? a) Intermediate filaments and microfilaments facilitate cellular movement, but microtubules do not. b) Intermediate filaments, microfilaments, and microtubules all facilitate cellular movement of one kind or another. c) Microtubules and intermediate filaments facilitate cellular movement, but microfilaments do not. d) Microtubules and microfilaments facilitate cellular movement, but intermediate filaments do not.

d) Microtubules and microfilaments facilitate cellular movement, but intermediate filaments do not.

Dynamic instability of microtubules... a) is caused by the large size of this type of cytoskeletal element. b) results from a deficiency of free tubulin subunits. c) is shared by no other cytoskeletal elements. d) allows microtubules to perform their functions. e) All of these choices are correct.

d) allows microtubules to perform their functions.

Which one of the following CORRECTLY lists components of extracellular matrix found in plants? a) collagen, laminin, and elastin b) lignin, pectin, and keratin c) collagen, lignin, laminin, and pectin d) cellulose, pectin, and lignin

d) cellulose, pectin, and lignin

The cytoskeleton of plant cells includes... a) tubulin, microfilaments, and intermediate filaments. b) actin, microtubules, and intermediate filaments. c) microtubules, microfilaments, and intermediate filaments. d) microtubules and microfilaments. e) actin, microfilaments, and intermediate filaments.

d) microtubules and microfilaments.

Epithelial tissue is found... a) on the outer surface of the body. b) lining blood vessels. c) lining the lungs. d) lining the gastrointestinal tract. e) All of these choices are correct.

e) All of these choices are correct.

Intermediate filaments... a) undergo little change in length in comparison to microtubules and microfilaments. b) play an important role in preventing skin from tearing by shear stress. c) have a diameter that is larger than a microfilament, but smaller than a microtubule. d) play an important role in maintaining cell shape. e) All of these choices are correct.

e) All of these choices are correct.