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Explain two reasons why a woman with low levels of LH would not be able to become
pregnant.
Answer: ✔✔
1. LH acts on the ovary to cause ovulation to happen.
2. LH causes progesterone release to facilitate potential fertilization of the egg for
pregnancy. Progesterone is a key hormone to maintain pregnancy. A woman with low
levels of LH would not be able to become pregnant.
Would you expect a female to have testosterone in their bloodstream? Explain why or why
not.
Answer: ✔✔
Yes, because both men and women have both sex hormones, but in both males and females, the
ratios are different. Men would have more testosterone to produce a deep voice and facial hair,
whereas a woman would have less.
Label the endocrine glands (A-C) A: _____________ B: _____________ C: _____________
Answer: ✔✔
A - Pineal gland
B - Hypothalamus
C - Pituitary gland
Explain the concept of positive feedback. Give an example of a hormone that works
through positive feedback.
, Answer: ✔✔
Positive feedback is the action of a hormone increasing its production of a specific hormone. An
example is oxytocin, which causes the uterus to contract during childbirth. Positive feedback
stops when childbirth is over, and the uterus no longer needs to contract.
This type of hormone is derived from cholesterol:
Answer: ✔✔
Steroid hormones
Growth hormone ______
Answer: ✔✔
is produced by the anterior pituitary gland.
Neurosecretory cells are a part of what endocrine organ?
Answer: ✔✔
Hypothalamus
Which hormone production is decreased with sunlight?
Answer: ✔✔
Melatonin
The posterior pituitary stores these two hormones:
Answer: ✔✔
ADH and Oxytocin
List the hormone(s) that best describes the statement below:
I promote the reabsorption of water at the collecting ducts of the kidneys.