HLSC 2410 ENDOCRINE SYSTEM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
hormone action
Homeostasis is often an interplay between brain and body via ___
Amines
__ are derived from amino acids
Amines
Peptides and proteins
Steroids
Three major chemical classes of hormones are:
single
Amine is derived from a __ amino acids
inactive
Is Proinsulin active or inactive?
Liver
The __ is the major organ of hormone metabolism
Half-life
Time to clear half of the hormone from circulation
Peptides
__ = short proteins
Hydrophobic and Lipophilic
, Steroid hormones are __ and __
Cholesterol
__ is building block for steroid hormones
binding proteins
Lipophilic and Hydrophobic hormones tend to be transported through the blood via ___
inactive
Free, active hormone continues to signal until its metabolized to an ___ form
receptors
The ability of a cell to respond to a hormone depends upon the presence of __ for that
hormone on or in the target cell
up-regulation
An increase in the number of receptors for a hormone
down-regulation
A decrease in the number of receptors for a hormone
GPCR
__ sits at membrane, connects to G protein
G protein
Can be stimulatory (Gs, Gq) or inhibitory (Gi) on an "effector enzyme"
Effector enzyme
Generates a "second messenger", such as cyclic AMP or calcium
Kinase
Activated by a second messenger. Attaches phosphate groups to proteins, which alters
their function, thereby altering cellular physiology
WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
hormone action
Homeostasis is often an interplay between brain and body via ___
Amines
__ are derived from amino acids
Amines
Peptides and proteins
Steroids
Three major chemical classes of hormones are:
single
Amine is derived from a __ amino acids
inactive
Is Proinsulin active or inactive?
Liver
The __ is the major organ of hormone metabolism
Half-life
Time to clear half of the hormone from circulation
Peptides
__ = short proteins
Hydrophobic and Lipophilic
, Steroid hormones are __ and __
Cholesterol
__ is building block for steroid hormones
binding proteins
Lipophilic and Hydrophobic hormones tend to be transported through the blood via ___
inactive
Free, active hormone continues to signal until its metabolized to an ___ form
receptors
The ability of a cell to respond to a hormone depends upon the presence of __ for that
hormone on or in the target cell
up-regulation
An increase in the number of receptors for a hormone
down-regulation
A decrease in the number of receptors for a hormone
GPCR
__ sits at membrane, connects to G protein
G protein
Can be stimulatory (Gs, Gq) or inhibitory (Gi) on an "effector enzyme"
Effector enzyme
Generates a "second messenger", such as cyclic AMP or calcium
Kinase
Activated by a second messenger. Attaches phosphate groups to proteins, which alters
their function, thereby altering cellular physiology
