Which of the following hormones is produced in the zone of adrenal gland labeled as B?
Mineralocorticoids
Androgens
Glucocorticoids
Estrogens
The Correct Answer is C
a) Mineralocorticoids
These are produced in the zona glomerulosa, not the zona fasciculata.
b) Androgens
Androgens are primarily produced in the zona reticularis.
c) Glucocorticoids
The zona fasciculata is the middle layer of the adrenal cortex and produces glucocorticoids, such as cortisol.
d) Estrogens
Estrogens are not produced by the adrenal cortex in significant amounts; they are mainly produced in the ovaries.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a) The anterior pituitary produces testosterone from cholesterol and releases it when releasing hormones arrive from the hypothalamus.
Testosterone is produced in the testes, not the anterior pituitary.
b) The hypothalamus produces ADH and oxytocin which are stored in the posterior pituitary.
ADH and oxytocin are synthesized in the hypothalamus and then transported to and stored in the posterior pituitary until needed.
c) The posterior pituitary contains autonomic centers that exert neural control over the adrenal glands.
The hypothalamus, not the posterior pituitary, regulates the adrenal medulla via neural signals.
d) The thalamus produces ADH and oxytocin which are stored in the anterior pituitary.
The thalamus is a relay station for sensory signals, not a hormone-producing structure.
Correct Answer is A
Explanation
a) store iron in the liver: Ferritin is an intracellular protein that stores iron and releases it in a controlled fashion. It is primarily found in the liver, spleen, and bone marrow.
b) Absorb iron across intestinal cells: DMT1 (divalent metal transporter 1) and ferroportin are more directly involved in this.
c) Oxidize iron in the peroxisomes: Iron oxidation is not a function of peroxisomes, nor of ferritin.
d) Transport iron in the blood: Transferrin, not ferritin, is responsible for iron transport in plasma.
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