Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ch. 5 Exercise
Physiology
| Question | Answer |
|---|---|
| Arachidonic is the raw material for the synthesis of: a. amines b. thyroid hormones c. eicosanoids d. steroids e. peptides | |
| Epinephrine is a(n): a. amino acid b. steroid c. eicosanoid d. adrenocorticoid e. catecholamine | |
| Most chemical messengers fall into which of the following classes? a. amines b. amino acids c. peptide/proteins d. eicosanoids e. steroids | |
| All amino acid chemical messengers function as: a. paracrines b. autocrines c. neurohormones d. neurotransmitters e. hormones | |
| All steroid acid chemical messengers function as: a. paracrines b. autocrines c. neurohormones d. neurotransmitters e. hormones | |
| Which of the following messenger classes bind to intracellular receptors? a. catecholamines only b. peptides only c. steroids only d. both catecholamines and steroids e. both peptides and steroids | |
| The response of a target cell to a messenger depends on which of the following? a. concentration of messenger b. concentration of receptors on target cell c. affinity of the receptor for the messenger d. both a and c are true e. all of the above are | |
| What enzyme catalyzes the synthesis of diacylglycerol? a. adenylate cyclase b. tyrosine kinase c. phosholipase C d. protein kinase e. phosphoprotein phosphatase | |
| Cells that secrete a messenger are called _____________. | |
| A (paracrine/autocrine) agent acts on the same cell that secretes it. | |
| Endocrine glands release (neurotransmitter/hormones) into the _____________, where it travels to the target cell. | |
| An active G protein releases the _________ subunit, which interacts with another membrane protein, altering it's activity. | |
| The enzyme that catalyzes conversion of ATP to cAMP is called ____________. | |
| Following activation of the phospatidylinositol system, (IP3/DAG) liberates calcium from intracellular stores. | |
| (Lipophilic/Lipophobic) messengers exert their effect on target cells by activating or inactivating specific genes. | |
| Examples of locally acting chemical messengers are (steroids/eicosanoids). | |
| Cytosolic calcium often exerts its effects by binding to cytosolic (protein kinase C/calmodulin). | |
| Lipophobic messengers are secreted by (exocytosis.diffusion across the cell membrane). | |
| Amino acids are (hormones/neurotransmitters). | |
| The (nervous system/endocrine system) is more rapid means of communication. |
Created by:
GracieLou
Popular Physiology sets