Hormones: Select one or MORE:
a. can be secreted by the cells in the brain
b. have two possible types of effects: inducer/organizational and activational
c. specifically, steroid sex hormones are produced by the gonads, adrenal glands, and in some cases, fat cells. They are also produced by the placenta.
d. are not essential to proper sexual functioning
e. are chemical substances secreted in one part of an organism that affect other tissues or organs
2. Which of the following are TRUE about hormones? Select one or MORE:
a. Adult males and females produce androgens.
b. The cover term for the "female" sex hormones is estrogens.
c. Sex hormones require the presence of receptors on tissues to perform their function.
d. Sex hormones require enzymes for the conversion of one hormone to another in steroidogenesis.
e. Hormones at higher levels than normal can cause problems (i.e. decreased sperm count and possible cardiovascular problems in people who take anabolic steroids to enhance athletic activity).
f. Sex hormones are higher in adults than in children.
3. Which of the following is the precursor molecule from which all steroid hormones are synthesized? Select one:
a. Progesterone
b. Cholesterol
c. Pregnenolone
d. Testosterone