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Midterm

BIOL130 Study Guide - Midterm Guide: Glycogen, Cholera, Gtpase


Department
Biology
Course Code
BIOL130
Professor
Steve Spencer
Study Guide
Midterm

This preview shows pages 1-3. to view the full 11 pages of the document.

Why do cells need to communicate with each other?
-
-
-
-

!"
!#"
Signaling Pathways
$% &'
(% 
)% '*
+% ,
-% * 
.% /"
"'"0

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

Same signal can cause different responses
-123334
-!
-!4
Speed of cell responses
5131
Cell- surface receptors: 6
Intracellular receptors: 
Steroid Hormone Mechanism of Action
$%  '
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% 3/
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)% 7
+% 81
'''
Most signals bind to receptor on plasma membrane
Cell- surface receptors: 6

Only pages 1-3 are available for preview. Some parts have been intentionally blurred.

Secondary messenger:
3 11

Intracellular signal molecules often act as molecular switches
-'
o9
o11
-',:3#
o:,:
o51,:&411
Phosphorylation Cascade
Phosphorylation Cascade -steps that occurs when signal molecule binds to
receptor causing a chain of reaction (step process) to occurs that eventually
lead to a cellular response.
There are many steps so there are more opportunities for integration and
regulation.
GTP-Binding Proteins (G Proteins)
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