Which of the following would slow down gas exchange between the blood and alveolar air?
A) An increase in respiratory rate
B) An increase in membrane thickness
C) A decrease in nitrogen solubility
D) A decrease in membrane thickness
E) An increase in alveolar surface area
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Question 2) Which of the following is not true regarding sickle-cell disease?
A) It is due to a hereditary hemoglobin defect.
B) It is advantageous in that it can protect carriers against malaria.
C) It is caused by a recessive allele that modifies the structure of hemoglobin.
D) It is a cause of malaria.
E) It is a cause of anemia.
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Question 3) Which of the following will increase the rate of a chemical reaction?
A) An increase in product concentration B) An increase in reactant concentration
C) Enzyme inhibition D) A decreased temperature
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Question 4) The medial pole of the ovary is attached to the uterus by which ligament?
A) Mesovarium B) Suspensory ligament
C) Ovarian ligament D) Broad ligament
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Question 5) In the following reaction, what is(are) the product(s)? CO2 + H2O ---> H2CO3
A) H2CO3 B) CO2 and H2CO3
C) CO2 and H2O D) H2O and H2CO3
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Question 6) Which of the following muscles adducts and medially rotates the thigh?
A) Sartorius
B) Piriformis
C) Gracilis
D) Rectus femoris
E) Adductor magnus
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Question 7) Which of the following is not a trigger for mass movements of the colon?
A) The colorectal reflex
B) The duodenocolic reflex
C) The gastrocolic reflex
D) Chyme filling the duodenum
E) Chyme filling the stomach
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Question 8) Where are the cardiac, vasomotor, and respiratory centers found?
A) Midbrain
B) Pons
C) Spinal cord
D) Diencephalon
E) Medulla oblongata
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Question 9) During exercise, which of the following directly increases respiratory rate?
A) Reduced oxyhemoglobin
B) The Bohr effect
C) Increased H+ level in the blood
D) Anticipation of the needs of exercising muscle
E) Reduced blood pH
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Question 10) A deficiency of ________ can cause pernicious anemia.
A) vitamin B12
B) EPO secretion
C) iron
D) folic acid
E) vitamin C
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