BIOD 151 MODULE 6 EXAM QUESTIONS & VERIFIED ANSWERS PASSED ALREADY GRADED A+

BIOD 151 MODULE 6 EXAM
QUESTIONS & VERIFIED ANSWERS
PASSED ALREADY GRADED A+
Explain two reasons why a woman with low levels of LH would not be able to become
pregnant. - Correct Answer ✔✔ (1) LH acts on the ovary to cause ovulation to occur. (2)
LH causes progesterone release to facilitate potential fertilization of the egg and
pregnancy. Progesterone is a key hormone for the maintenance of pregnancy.

Would you expect a female to have testosterone in their bloodstream? Explain why or
why not. - Correct 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.

Label the endocrine glands (A-D) A: ______________ B: ______________ C:
______________ D: ______________ - Correct Answer ✔✔ A: Thyroid gland B:
Adrenal gland C: Kidney D: Pancreas

3. Label the endocrine glands (A-C) - Correct Answer ✔✔ A: Pineal gland B:
Hypothalamus C: Pituitary gland

Explain the concept of negative feedback and how it helps to maintain homeostasis. -
Correct Answer ✔✔ 1- The effect or increased level of the hormone acts to shut down
the con!nued release of the hormone. 2- The brain is constantly monitoring hormone
levels to keep levels within a certain range or set-point (homeostasis). Nega!ve
feedback is a way of "turning off" hormone produc!on when the desired level is achieved

4. Explain the concept of positive feedback. Give an example of a hormone that works
through positive feedback. - Correct 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. Oxytocin 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.

This type of hormone is derived from cholesterol:
A. Peptide hormones
B. Catecholamines
C. Steroid hormones
D. Tyrosine - Correct Answer ✔✔ C

5. This type of hormone is derived from proteins:

, A. Peptide hormones
B. Catecholamines
C. Steroid hormones
D. Tyrosine - Correct Answer ✔✔ A

6. Growth hormone____
A. is most active during childhood/adolescence.
B. can cause disease if levels are not correct.
C. cannot affect an adult.
D. A &B - Correct Answer ✔✔ D

6. Growth hormone______
A. is most active during adulthood.
B. is produced by the anterior pituitary gland.
C. underproduction is called acromegaly.
D. A &C - Correct Answer ✔✔ B

7. Neurosecretory cells are a part of what endocrine organ? Thalamus
Pituitary
Cerebellum
Hypothalamus - Correct Answer ✔✔ Hypothalmus

7. Neurons in the hypothalamus are called ______
Neurosecretory
Vasopressin
Melanocytes
Somatotropic - Correct Answer ✔✔ Neurosecretory

8. Which hormone production is increased with sunlight?
MSH -melanocyte stimulating hormone
Melatonin
Cortisol
GH -Growth hormone - Correct Answer ✔✔ MSH -melanocyte stimulating hormone

8. Which hormone production is decreased with sunlight?
A. MSH -melanocyte stimulating hormone
B. melatonin
C. cortisol
D. GH -Growth hormone - Correct Answer ✔✔ B

9. The posterior pituitary stores these two hormones:
ADH and LH
ADH and Oxytocin
LH and FSH
TSH and Prolactin - Correct Answer ✔✔ ADH and Oxytocin