BIO 431 EXAM 3 QUESTIONS AND ANSWERS

BIO 431 EXAM 3 QUESTIONS AND
ANSWERS
What hormone does the liver produce? Target organ? Effects? - Answer-- Produces
Angiotensinogen
- Target organ: stimulates gluconeogenesis, glycogenesis
- Promoting glucose back into the blood for energy

- Effect:

What hormone does the small intestine produce? Target organ? effects? - Answer--
Produces cholecystokinin
- Target organ:
- Effect:

Understand the 2 chemical classifications of hormones. - Answer-1. fat soluble hormone
= steroids
- no surface receptors
- diffuses through membrane then attaches to intracellular receptor, then binds to DNA,
then results in gene activation
- Ex. estrogen, testosterone, progesterone, cortisol

2. water soluble hormones = amino acid based
- requires surface receptors to land on then triggers production of secondary messenger
- common SR: cAMP
- then binds to another receptor to have an effect

Various Complexities:
- Amine hormone (modified AA)
ex. epinephrine and norepinephrine
- peptide hormones (short chain AA)
ex. antidiuretic hormone

- protein hormone
ex. insulin or human growth hormone

Anterior pituitary glands (Adenohypophysis)
What are the names of each endocrine gland? - Answer-1 Pituitary (master gland)
1 Thyroid
4 Parathyroid glands
2 Adrenal glands
1 Pineal
1 Thymus