Exam (elaborations)
BIOL325 Exam 2 Questions answers latest update
- Course
- BIOL325
- Institution
- University Of Richmond
BIOL325 Exam 2 Questions answers latest update
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BIOL325 Exam 2hormones
___ are transported in blood and lymph vessels.
amino acid
___ hormones are constructed through transcription and translation on the RER.
steroid
___ hormones are constructed by the SER.
exocytosis
AA based hormones are stored in vesicles and released via ___.
simple diffusion
Steroid hormones are not stored and released from the SER via ___ into the
plasma membrane.
hydrophobic
Steroid hormones are ___ and ride plasma membranes in the blood.
hydrophilic
AA hormones are ___ and float freely in the blood.
surface of cells
AA hormones have receptors on the ___.
cytosol and nucleus
Steroid hormones have receptors in the ___.
, cAMP Signaling
1. hormone binds to receptor
2. receptor activated G protein
3. G protein activated adenylate cyclase
4. adenylate cyclase converts ATP to ___
5. ___ activates protein kinases
6. phosphorylated proteins trigger response of target cell
steroid hormone signaling
1. ___ diffuses through plasma membrane and binds to intracellular receptor
2. receptor hormone complex enters the nucleus
3. receptor hormone complex binds to DNA region
4. binding initiates transcription of gene to mRNA
5. mRNA directs protein synthesis
endocrine
___ gland is stimulated to synthesize and release hormones in response to
humoral stimuli, neural stimuli, and hormonal stimuli
humoral stimuli; Ca2+
___ releases hormones because of altered levels of ions or nutrients; stimulated
by low concentration of ___ in capillary blood.
neural stimuli; action potentials
___ releases hormones because of a neural input; stimulated by ___ from
sympathetic fibers.
hormonal stimuli; hypothalamus
___ release hormones because of another hormone; stimulated by a hormone
from the ___
glandular tissue
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