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Karps Cell and Molecular Biology 8th Edition by Karp- Test Bank

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  • ISBN-10 ‏ : ‎ 1119573475
  • ISBN-13 ‏ : ‎ 978-1119573470

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SKU:tb1002670

Karps Cell and Molecular Biology 8th Edition by Karp- Test Bank

Package Title: Test Bank
Course Title: Karp7e
Chapter Number: 9

Question Type: Multiple Choice

1) Which type of cytoskeletal element is characterized as a hollow, rigid cylindrical tube with walls composed of tubulin subunits?

a) microfilaments
b) microtubules
c) intermediate filaments
d) all of these choices
e) minitubules

Answer: b

Difficulty: Easy
Learning Objective: LO 9.1 List some of the major functions of the cytoskeleton.
Section Reference: Section 9.1 Overview of the Major Functions of the Cytoskeleton

2) Which type of cytoskeletal element is described as tough, ropelike fibers composed of a variety of related proteins like keratin?

a) microfilaments
b) microtubules
c) intermediate filaments
e) macrofilaments

Answer: c

Difficulty: Easy
Learning Objective: LO 9.1 List some of the major functions of the cytoskeleton.
Section Reference: Section 9.1 Overview of the Major Functions of the Cytoskeleton

3) You use a nonionic detergent to extract a cell. When you do, much of the mRNA stays behind with the cytoskeleton, which is not solubilized by this treatment. What do these results mean?

a) The cytoskeleton denatures in nonionic detergents.
b) The mRNA is solubilized by the nonionic detergents.
c) The mRNA is anchored to the cytoskeleton.
d) The cytoplasm is anchored to the mRNA.
e) The cytoskeleton is destabilized by the nonionic detergent.

Answer: c

Difficulty: Hard
Learning Objective: LO 9.1 List some of the major functions of the cytoskeleton.
Section Reference: Section 9.1 Overview of the Major Functions of the Cytoskeleton

4) The splitting of a parent cell into two daughter cells is called ______.

a) diakinesis
b) cytokinesis
c) mitosis
d) meiosis
e) cytomegaly

Answer: b

Difficulty: Easy
Learning Objective: LO 9.1 List some of the major functions of the cytoskeleton.
Section Reference: Section 9.1 Overview of the Major Functions of the Cytoskeleton

5) Fluorescence microscopy allows investigators to view things _________ of regular light microscopes.

a) above the limits of resolution
b) above the limits of magnification
c) below the limits of resolution
d) below the limits of magnification
e) at the limits of magnification

Answer: c

Difficulty: Medium
Learning Objective: LO 9.2 Explain the methods used to study the cytoskeleton.
Section Reference: Section 9.2 The Study of the Cytoskeleton

 

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