BIOL 235 FINAL EXAM AND PRACTICE EXAM 120
QUESTIONS AND CORRECT DETAILED
ANSWERS||VERIFIED EXAM!!!|| (VERIFIED ANSWERS)
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Which cells are the main sites of gas exchange?
A) A
B) B
C) C
D) D
E) all of these choices - ANSWER-C
The muscles that elevates the ribs for breathing are the...
A) internal intercostal muscles
B) external intercostal muscles
C) diaphragm and external intercostal muscles
D) diaphragm and internal intercostal muscles
E) all of these choices - ANSWER-B
Airway resistance is affected primarily by the
A) thickness of the cartilage in the bronchial wall
B) partial pressure of each type of gas in inspired air
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C) amount of elastic tissue in the lungs
D) diameter of the bronchioles
E) amount of surfactant - ANSWER-D
The conducting airways with the air that does not undergo
respiratory exchange are known as the...
A) inspiratory volume
B) residual volume
C) minimal volume
D) respiratory dead space
E) expiratory reserve volume - ANSWER-D
This term means the lungs and the chest wall expand
easily.
A) High surface tension
B) Low surface tension
C) High compliance
D) Low compliance
E) None of the above - ANSWER-C
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The basic steps of gas exchange, or respiration, in the
body include
A) external respiration
B) pulmonary ventilation
C) internal respiration
D) both A and B
E) A, B, and C - ANSWER-E
Which of the following is the dominant method of carbon
dioxide transport?
A) bound to hemoglobin
B) bound to oxygen
C) dissolved in plasma as a gas
D) dissolved in plasma as bicarbonate ions
E) diffusion - ANSWER-D
Where is the rhythmicity center for respiration?
A) in the medulla
B) in the pons
C) in the cerebrum
D) in the hypothalamus
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E) in the cerebellum - ANSWER-A
Which of the following is not a form of phosphorylation?
A) reduction phosphorylation
B) substrate level phosphorylation
C) oxidative phosphorylation
D) photophosphorylation
E) none of these choices - ANSWER-A
Which of the following is not true of catabolism?
A) glycolysis is a catabolism process
B) catabolism reactions convert complex molecules into
simpler ones
C) formation of a peptide bond is a catabolic process
D) most catabolic reactions are exothermic
E) amylase is a catabolic enzyme - ANSWER-C
How is excess glucose stored in liver and muscle cells?
A) as glucose-6-phosphate