5.1 Classification And MOA Of Hormones

Question 0

Steroid like amino acid derivative hormones

Answer 0

T3 and t4 (iodothyronines)

Question 1

First step in amplification of the hormonal response

Answer 1

Receptor-effector coupling

Question 2

Amino acid derivative hormones that are peptide-like

Answer 2

Catecholamines

Question 3

Group classification of hormones that are lipophilic, use intercellular receptors, and have long plasma half life

Answer 3

Group I (steroids, retinoids, calcitriol, and iodothyronines)

Question 4

Group classification of hormones that are hydrophilic, with short plasma half life, use plasma membrane receptors

Answer 4

Group II (polypeptides, proteins, glycoproteins, Catecholamines)

Question 5

Glucocorticoid receptors are found in the

Answer 5

Cytoplasm

Question 6

Receptors for t3, t4, and retinoic acids are found in the

Answer 6

Nucleus

Question 7

Two hormones with cGMP as second messengers

Answer 7

Atrial natriuretic factor and nitric oxide

Question 8

Feature of signal transduction where signal molecule only fits in its complementary receptor

Answer 8

Specificity

Question 9

Feature of signal transduction where enzymes activate enzymes and the number of affected molecules increase geometrically

Answer 9

Amplification

Question 10

Signal transduction feature where receptor activation triggers a feedback circuit that shuts off the receptor or removes the receptor from the cell surface

Answer 10

Desensitization or adaptation

Question 11

Function of GAPs

Answer 11

Increase GTPase activity and determines how long the switch remains on
Inactivated the protein

Question 12

Function of GEFs

Answer 12

Exchanges bound GDP with GTP

Activates G protein