The level of testosterone in the blood is increased by
A) the hypothalamus stimulating the testes to release LH.
B) a high level of testosterone stimulating the testes to release more LH.
C) a high level of testosterone stimulating the hypothalamus.
D) LH causing the interstitial cells to release testosterone.
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Question 2) Diabetes mellitus, in which fatty acids react to produce ketone bodies, leads to
A) metabolic alkalosis. B) respiratory acidosis.
C) respiratory alkalosis. D) metabolic acidosis.
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Question 3) The detrusor muscle is in the
A) ureter. B) kidneys.
C) urethra. D) urinary bladder.
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Question 4) Identical alleles are said to be
A) homozygous. B) dominant.
C) recessive. D) heterozygous.
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Question 5) Provitamins are special vitamins that elite athletes take.
Indicate whether the statement is true or false
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Question 6) The fetal blood that passes through the ductus venosus is relatively
A) low in oxygen but high in nutrients. B) high oxygen but low in nutrients.
C) high in oxygen and nutrients. D) low in oxygen and nutrients.
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Question 7) A person normally has two alleles of a gene because
A) all genes come in only two varieties.
B) there isn't enough DNA to accommodate more than this.
C) one allele of a gene is carried on each of two homologous chromosomes.
D) DNA only comes in two forms.
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Question 8) The trigone is
A) a muscle layer that surrounds each kidney.
B) a region where the glomerulus meets the glomerular capsule.
C) a triangular area on the floor of the urinary bladder.
D) a group of three neighboring nephrons in a kidney.
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Question 9) The foramen ovale is an opening that allows fetal blood to pass from the
A) right atrium to the left atrium. B) right ventricle to the left ventricle.
C) left atrium to right atrium. D) left ventricle to the right ventricle.
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Question 10) Prolonged vomiting, in which only the stomach contents are lost, leads to
A) respiratory alkalosis. B) metabolic acidosis.
C) metabolic alkalosis. D) respiratory acidosis.
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