At the base of each cilium is a structure called the
A. kinetochore.
B. basal body.
C. dynein arm.
D. centrosome.
E. None of these choices is correct.
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Question 2) The shaft of a flagellum contains _____________ microtubule doublets around its periphery.
A. 9
B. 2 + 9
C. 2+7
D. 7
E. 2
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Question 3) When a person trains for running long distances, which of the following organelles increase in his/her muscles?
A. mitochondria
B. lysosomes
C. enzymes for glycolysis
D. basal bodies
E. rough endoplasmic reticulum
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Question 4) What organelles produce most of the cell's energy?
A. nucleus
B. lysosomes
C. centrioles
D. mitochondria
E. ribosomes
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Question 5) A cell can meet increased energy demands by an increase in
A. ribosomal subunits.
B. the number of mitochondria.
C. nuclear DNA activity.
D. its overall size so it has more room to generate energy.
E. lysosomal enzyme and ribosome activity within the cell.
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Question 6) Mitochondria
A. contains DNA.
B. have inner and outer membranes.
C. have inner folds called cristae.
D. are the cell's power plants.
E. All of these choices are correct.
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Question 7) A cell uses centrioles in the process of
A. protein synthesis.
B. RNA replication.
C. cell division.
D. energy generation.
E. nuclear centering.
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Question 8) Which of the following terms does NOT relate to the mitochondria?
A. ATP
B. cristae
C. self-replicating
D. outer and inner membranes
E. vitamin A storage
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Question 9) A cell that breaks down and recycles proteins would have large numbers of
A. peroxisomes.
B. secretory vesicles.
C. proteosomes.
D. lysosomes.
E. rough ER.
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Question 10) Experimental manipulation to increase the energy output of the cell might include
A. increasing protein synthesis.
B. rupturing the lysosomes in the cell.
C. decreasing nuclear size.
D. increasing the number of mitochondria.
E. removing some of the ribosomes.
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