Insulin and glucagon:
Are secreted in response to decreasing blood glucose levels
Elevate blood glucose levels
Secreted by the beta cells of the islets of Langerhans
Are secreted by the pancreas and are concerned with the regulation of blood glucose
The Correct Answer is D
A. Are secreted in response to decreasing blood glucose levels:
Only glucagon is secreted when glucose is low; insulin is secreted when it is high.
B. Elevate blood glucose levels:
Only glucagon elevates blood glucose. Insulin lowers it.
C. Secreted by the beta cells of the islets of Langerhans:
Only insulin is secreted by beta cells. Glucagon is secreted by alpha cells.
D. Are secreted by the pancreas and are concerned with the regulation of blood glucose:
Both hormones are secreted by the pancreas and work together to regulate blood glucose levels- insulin lowers it, and glucagon raises it.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Causes the release of ADH: ADH reduces urination by promoting water reabsorption.
B. Blocks the reabsorption of Na+: Most diuretics act by preventing sodium reabsorption, which in turn prevents water reabsorption, increasing urine output.
C. Activates the renin-angiotensin-aldosterone system: This system conserves fluid and reduces urination.
D. Decreases GFR: Decreasing GFR reduces urine production.
Correct Answer is A
Explanation
A. Reduces the chromosome number from 46 to 23: Meiosis produces gametes (egg and sperm) with half the genetic material.
B. Occurs in every cell in the body except the egg cell and sperm cell: That describes mitosis.
C. Occurs in the ovum but not the sperm: Meiosis occurs in both egg and sperm cells.
D. Increases the chromosome number from 23 to 46: That happens at fertilization, not during meiosis.
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