AP Biology : Reproductive Physiology

Study concepts, example questions & explanations for AP Biology

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Example Questions

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Example Question #87 : Understanding Other Reproductive Physiology

Which of the following hormones is not involved in the menstrual cycle?

Possible Answers:

Luteinizing hormone (LH)

Estrogen

Progesterone

Follicle-stimulating hormone (FSH)

Prolactin

Correct answer:

Prolactin

Explanation:

Prolactin is a hormone responsible for the production of milk in the mammary glands of mammals. It is not involved in the menstrual cycle, which is controlled by fluctuating levels of the hormones estrogen, progesterone, luteinizing hormone (LH), and follicle-stimulating hormone (FSH).

Example Question #88 : Understanding Other Reproductive Physiology

Which of the following can be defined as the process by which sperm is discharged from the male body?

Possible Answers:

Ejaculation

Oogenesis

None of these

menstruation

Spermatogenesis

Correct answer:

Ejaculation

Explanation:

Ejaculation is defined as the process by which sperm is discharged from the male body through the urethra. This process typically occurs during the male orgasm.

Example Question #89 : Understanding Other Reproductive Physiology

Which of the following correctly identifies the typical—average—length of a single female menstrual cycle?

Possible Answers:

Correct answer:

Explanation:

One average, one menstrual cycle typically lasts for about 28 days; however, this time length can range anywhere from 21 to 35 days depending on the individual.

Example Question #90 : Understanding Other Reproductive Physiology

What hormone causes ovulation to occur during the menstrual cycle?

Possible Answers:

Thyroid-stimulating hormone

Luteinizing hormone

Prolactin

Growth hormone

Follicle-stimulating hormone

Correct answer:

Luteinizing hormone

Explanation:

An increase in estrogen causes an increase in the luteinizing hormone. It is the luteinizing hormone that causes ovulation. Ovulation is the process of releasing an ovum. 

Growth hormone creates growth in the body. Follicle-stimulating hormone helps follicles mature, and promotes spermatogenesis in males. Prolactin causes the mammary glands to create milk. Thyroid-stimulating hormone helps release thyroxine and triiodothyronine (thyroid hormones).

Example Question #91 : Understanding Other Reproductive Physiology

Which of the following is true regarding the association between intercurrent diseases and pregnancy?

Possible Answers:

The diseases can worsen as a result of the pregnancy

These diseases do not impact the pregnancy

Drugs taken to treat the disease have no impact on the fetus

None of these

They are not pre-existing

Correct answer:

The diseases can worsen as a result of the pregnancy

Explanation:

Intercurrent diseases are diseases that are not related to being pregnant (they were pre-existing) but may worsen during pregnancy. These diseases pose a risk to the developing fetus and special attention needs to be given to the drugs taken to treat the exiting illness because they may negatively impact the fetus. In the case of infections, there is a risk of vertical transmission to the fetus.

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