Would you expect a female to have testosterone in their bloodstream? Explain why or why
not. - ANSWER (1) Yes. Both male and female bodies produce "all" the sex hormones.
However, the ratios are different.(2) The adrenal glands are largely responsible for producing
this "opposite" hormone that the ovaries would not.
Explain two reasons why a woman with low levels of LH would not be able to become preg-
nant. - ANSWER (1) LH acts on the ovary to cause ovulation to occur. (2) LH causes pro-
gesterone release to facilitate potential fertilization of the egg and pregnancy. Progesterone
is a key hormone for the maintenance of pregnancy.
Explain the concept of positive feedback. Give an example of a hormone that works through
positive feedback. - ANSWER 1- Positive feedback is the action of a hormone increasing
the production of that hormone. (This is the opposite of negative feedback).
2- One example is the action of oxytocin causing the uterus to contract during labor. Oxyto-
cin enhances the effect of the uterus contractions, causing more oxytocin to be released.
The positive feedback loop is stopped once the baby is born and the uterus no longer needs
to contract, stopping the production of oxytocin.
Label the endocrine glands (A-D)
A: ______________B: ______________C: ______________D: ______________ - AN-
SWER A. thyroid gland
B. adrenal gland
c. kidney
d. pancreas
This type of hormone is derived from cholesterol: - ANSWER Steroid hormones
1
not. - ANSWER (1) Yes. Both male and female bodies produce "all" the sex hormones.
However, the ratios are different.(2) The adrenal glands are largely responsible for producing
this "opposite" hormone that the ovaries would not.
Explain two reasons why a woman with low levels of LH would not be able to become preg-
nant. - ANSWER (1) LH acts on the ovary to cause ovulation to occur. (2) LH causes pro-
gesterone release to facilitate potential fertilization of the egg and pregnancy. Progesterone
is a key hormone for the maintenance of pregnancy.
Explain the concept of positive feedback. Give an example of a hormone that works through
positive feedback. - ANSWER 1- Positive feedback is the action of a hormone increasing
the production of that hormone. (This is the opposite of negative feedback).
2- One example is the action of oxytocin causing the uterus to contract during labor. Oxyto-
cin enhances the effect of the uterus contractions, causing more oxytocin to be released.
The positive feedback loop is stopped once the baby is born and the uterus no longer needs
to contract, stopping the production of oxytocin.
Label the endocrine glands (A-D)
A: ______________B: ______________C: ______________D: ______________ - AN-
SWER A. thyroid gland
B. adrenal gland
c. kidney
d. pancreas
This type of hormone is derived from cholesterol: - ANSWER Steroid hormones
1
