Chapter 02 The Cell and Its Functions

Chapter 02  The Cell and Its Functions

Complete Chapter Questions And Answers
 

Sample Questions

Refer to the following list to answer questions 1-3:

A. Nucleolus
B. Nucleus
C. Agranular endoplasmic reticulum
D. Granular endoplasmic reticulum
E. Golgi apparatus
F. Endosomes
G. Peroxisomes
H. Lysosomes
I. Cytosol

Identify the cellular location for each of the following steps involved in the synthesis and packaging of a secreted protein.

Initiation of translation.

ANS: I

Protein sorting and packaging.

ANS: E

Gene transcription.

ANS: B

4. Which of the following is true for both pinocytosis and phagocytosis?
A. Involves the recruitment of actin filaments
B. Occurs spontaneously and non-selectively
C. Permits the uptake of bacterium into the cytosol
D. Is only observed in macrophages and neutrophils
E. Does not require ATP

ANS: A

5. The cell membrane is LEAST permeable to which of the following?
A. Sodium
B. Oxygen
C. Ethanol
D. Carbon Dioxide
E. Water

ANS: A

6. The term “glycocalyx” refers to:
A. The negatively charged carbohydrate chains that protrude into the cytosol from glycolipids and integral glycoproteins
B. The negatively charged carbohydrate layer on the outer cell surface
C. The layer of anions aligned on the cytosolic surface of the plasma membrane
D. The large glycogen stores found in “fast” muscles
E. A mechanism of cell-cell attachment

ANS: B

7. Proteins are sorted for their delivery to lysosomes, secretory vesicles and the plasma membrane in the:
A. Golgi apparatus
B. smooth endoplasmic reticulum
C. nucleus
D. endocytotic vesicle

ANS: A