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In ovulation, after expelling the oocyte the follicle becomes ____________which produces_____________.

A.

corpus luteum; FSH and LH

B.

corpus albicans; progesterone

C.

corpus albicans; estrogen and progesterone

D.

corpus luteum; estrogen and progesterone

Answer and Explanation

The Correct Answer is D

A. Corpus luteum; FSH and LH: The follicle transforms into the corpus luteum after ovulation, which secretes hormones. However, FSH and LH are hormones secreted by the pituitary gland, not products of the corpus luteum.

B. Corpus albicans; progesterone: The corpus albicans is a degenerated form of the corpus luteum and is not responsible for secreting progesterone.

C. Corpus albicans; estrogen and progesterone: The corpus albicans forms after the corpus luteum degenerates and does not produce significant levels of estrogen and progesterone.

D. Corpus luteum; estrogen and progesterone: After ovulation, the follicle transforms into the corpus luteum, which secretes estrogen and progesterone to support the early stages of pregnancy or regulate the menstrual cycle if pregnancy does not occur.


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Related Questions

Correct Answer is D

Explanation

A. Azotemia is a condition characterized by elevated levels of nitrogenous waste products in the blood, not a direct by-product of protein catabolism.

B. Creatinine is a by-product of muscle metabolism, not directly from protein catabolism.

C. Uric acid is a by-product of nucleic acid metabolism, not protein catabolism.

D. Urea is a primary by-product of protein catabolism, formed in the liver and excreted by the kidneys. This is the correct answer.

Correct Answer is A

Explanation

A. Chief cells; hydrochloric acid (HCl); parietal cells: Pepsinogen is produced by chief cells, and it is activated into pepsin by hydrochloric acid (HCl) secreted by parietal cells.

B. Chief cells; carbonic anhydrase (CAH); parietal cells: Chief cells produce pepsinogen, but it is not activated by carbonic anhydrase. Instead, it is activated by HCl.

C. Parietal cells; carbonic anhydrase (CAH); chief cells: Pepsinogen is produced by chief cells, not parietal cells, and its activation involves HCl, not carbonic anhydrase.

D. Parietal cells; hydrochloric acid (HCl); chief cells: Pepsinogen is produced by chief cells, not parietal cells, and is activated by HCl.

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