A&P UNIT 5 ENDOCRINE

WHAT ARE PEPTIDES?
- CHAINS OF AMINO ACIDS.
- MOST HORMONES ARE PEPTIDES
WHAT AMINO ACID ARE ALL AMINES CONSTRUCTED OF?

TYROSINE
WHAT DO CATECHLOAMINES INCLUDE?
- EPINEPHRINE
- NOREPINEPHRINE
- DOPAMINE
STERIODS ARE ALL DERIVATIVES OF WHAT?

CHOLESTEROL
WATER-SOLUBLE HORMONES: CATECHOLAMINES &PEPTIDES PROPERTIES?
- 1.DISSOLVE IN THE PLASMA OF BLOOD FOR TRANSPORT.
- 2.TARGET RECEPTOR LOCATED ON THE CELL MEMBRANE(OUTSIDE)
- 3.BONDING TO THE RECEPTOR CAUSES SECOND MESSENGER SYSTEMS.
- 4. MADE IN ADVANCE, STORED IN SECRETORY VESICLES.
- 5. RELEASED BY EXOCYTOSIS/
- 6. DURATION OF ACTION= MINUTES (SHORT HALF LIFE)
LIPID-SOLUBLE: THYROID HORMONES & STEROIDS PROPERTIES?
- 1. BOUND TO CARRIER PROTEINS IN THE BLOOD FOR TRANSPORT
- 2 TARGET RECEPTORS LOCATED IN CYTOPLASM (INSIDE CELL WALL)
- 3. BONDING TO RECEPTOR CAUSES ACTIVATION OF GENES FOR TRANSCRIPTION ANS TRANSLATION
- 4.STERIOD HORMONES MADE ON DEMAND. THYROID HORMONE MADE IN ADVNCE AND STORED
- 5. RELEASED BY SIMPLE DIFFUSION
- 6. DUARTION OF ACTION= HOURS(LONG HALF LIFE)

Author

claire_0068

ID

46835

Card Set

A&P UNIT 5 ENDOCRINE

Description

ENDOCRINE

Updated

11/2/2010, 11:04:46 PM

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