Pseudopods are characteristic of what form of endocytosis?
a. pinocytosis
b. phagocytosis
c. autophagy
d. lymphocytosis
e. ingestion
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Question 2) Select the incorrect characteristic of mitochondria.
a. They have an inner fluid-filled space called the cristae.
b. They possess their own DNA.
c. They are the site of cellular respiration.
d. Their inner membranes contain electron carriers.
e. They possess two membranes.
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Question 3) What form of endocytosis do white blood cells use in order to engulf bacteria?
a. phagocytosis
b. pinocytosis
c. bactocytosis
d. bacteriophage
e. lymphocytosis
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Question 4) The SNARE complex provides
a. allows recognition of foreign proteins after they enter a cell
b. a way for a certain enzyme to bind with the correct substrate
c. a means to deliver vesicles to an appropriate site
d. a mechanism necessary for receptor mediated endocytosis to occur
e. all of the functions listed above
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Question 5) On average, how many lysosomes do cells contain?
a. about 10
b. about 50
c. about 100
d. about 300
e. about 1,000
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Question 6) The form of endocytosis in which whole cells such as bacteria are brought in is
a. exocytosis
b. pinocytosis
c. receptor-mediated endocytosis
d. phagocytosis
e. mitosis
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Question 7) What is the main action of lysosomes?
a. promote cellular division
b. repair the plasma membrane
c. destroy free radicals
d. produce energy for cells
e. break down organic molecules
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Question 8) Which of the following does not always involve the plasma membrane?
a. endocytosis
b. secretion
c. formation of an endocytic vesicle
d. pinocytosis
e. vesicle formation
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Question 9) Vesicular transport from one Golgi sac to the next is accomplished through the action of what compound?
a. proteasome
b. B-protease
c. ubiquitin
d. membrane-curving coat protein I (COPI)
e. plasma coated protein I (PCPI)
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Question 10) Which of the following does not apply to lysosomes?
a. They contain hydrolytic enzymes.
b. They generate hydrogen peroxide.
c. They aid in the breakdown of material that is taken into the cell through endocytosis.
d. When they are abnormal, Tay-Sachs disease may result.
e. They help remove damaged organelles.
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