Which condition can occur due to low production of cortisol?
a. elevated blood pressure
b. decreased urine production
c. elevated blood sugar
d. hypoglycemia
e. low blood calcium
ANSWER: d
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In individuals with normal blood sugar levels, glucose is reabsorbed into the bloodstream in the kidney by members of the GLUT transporter family, which form an aqueous pore across the membrane through which glucose can move passively. As a result, no glucose is excreted in urine. However, in people with untreated diabetes mellitus, blood sugar levels are high and glucose is often present in the urine. What can explain this occurrence?
A. High blood glucose levels reverse the concentration gradient, allowing untransported glucose to be excreted in urine. B. High blood glucose levels interfere with the coupled transport of water and glucose, allowing untransported glucose to be excreted in urine. C. The GLUT transporters become saturated, allowing untransported glucose to be excreted in urine. D. The GLUT transporters cannot hydrolyze ATP quickly enough for ATP to transport the extra glucose, thereby allowing untransported glucose to be excreted in urine. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about glucose movement through the GLUT transporter? What other information is related to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Changes seen in the onset of puberty are directly controlled by _____________ , and indirectly controlled by _______________.
A. Estrogen; FSH B. Estrogen; LH C. Progesterone; FSH D. Estrogen; GnRH E. Progesterone; LH
Which of the following is not evidence supporting the Lyon hypothesis of X inactivation?
A. Female mammals that are heterozygous for X-linked traits are phenotypically mosaics. B. A highly condensed structure is consistently observed in female cells, but not in male cells. C. A female cat that is homozygous for coat color cannot produce calico offspring. D. Calico patterns of coat color are never exactly the same. E. A genetically normal male cat can never be calico.
The systemic circuit specifically circulates blood ________.
A. from the heart to the rest of the body B. from the heart to the liver C. from the heart to the brain D. from the heart to the lungs