AMCB Exam 2 Questions With Correct
Answers
Sources of extracellular signal - CORRECT ANSWER✔✔--non-cellular environment
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-cellular environment (cell-cell communication)
| | |
-hundreds of types of signals
| | | |
cells signaling - CORRECT ANSWER✔✔--stimulus sensing; communication
| | | | | |
-information processing; decision making
| | |
_________ -> ________ ____________ -> _________ _________ - CORRECT
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ANSWER✔✔-receptors -> signal transducers -> effector proteins | | | | | |
signaling pathways ____________ nearly _____ cellular functions - CORRECT
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ANSWER✔✔-regulate; all |
Receptors bind ________ _________ (_________) - CORRECT ANSWER✔✔-
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signaling molecules (ligands)
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receptors are highly ___________ and __________ - CORRECT ANSWER✔✔-
| | | | | | | |
sensitive, specific |
typical signal molecule concentration - CORRECT ANSWER✔✔-<10^-8 M
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, More than ________ human genes encode receptors - CORRECT ANSWER✔✔-
| | | | | | | | |
1500
Most ______________ are at the cell surface - CORRECT ANSWER✔✔-receptors
| | | | | | | | |
some receptors are ______________ (e.g. light, gas receptors) - CORRECT
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ANSWER✔✔-intracellular
Four forms of intercellular signaling - CORRECT ANSWER✔✔--contact-dependent
| | | | | | |
-paracrine
-synaptic
-endocrine
contact-dependent signaling - CORRECT ANSWER✔✔-molecules bound to the
| | | | | | | |
surface of cells serve as signals to cells coming in contact with them
| | | | | | | | | | | |
paracrine signaling - CORRECT ANSWER✔✔-secreted molecules diffuse locally
| | | | | | | |
and trigger a response in neighboring cells
| | | | | |
synaptic signaling - CORRECT ANSWER✔✔-a type of local signaling specific to
| | | | | | | | | | |
neurotransmitters in nerve cells | | |
endocrine signaling - CORRECT ANSWER✔✔-A type of long-distance signaling that
| | | | | | | | |
utilizes hormones.
| |
Answers
Sources of extracellular signal - CORRECT ANSWER✔✔--non-cellular environment
| | | | | | |
-cellular environment (cell-cell communication)
| | |
-hundreds of types of signals
| | | |
cells signaling - CORRECT ANSWER✔✔--stimulus sensing; communication
| | | | | |
-information processing; decision making
| | |
_________ -> ________ ____________ -> _________ _________ - CORRECT
| | | | | | | | |
ANSWER✔✔-receptors -> signal transducers -> effector proteins | | | | | |
signaling pathways ____________ nearly _____ cellular functions - CORRECT
| | | | | | | | |
ANSWER✔✔-regulate; all |
Receptors bind ________ _________ (_________) - CORRECT ANSWER✔✔-
| | | | | | |
signaling molecules (ligands)
| |
receptors are highly ___________ and __________ - CORRECT ANSWER✔✔-
| | | | | | | |
sensitive, specific |
typical signal molecule concentration - CORRECT ANSWER✔✔-<10^-8 M
| | | | | | |
, More than ________ human genes encode receptors - CORRECT ANSWER✔✔-
| | | | | | | | |
1500
Most ______________ are at the cell surface - CORRECT ANSWER✔✔-receptors
| | | | | | | | |
some receptors are ______________ (e.g. light, gas receptors) - CORRECT
| | | | | | | | | |
ANSWER✔✔-intracellular
Four forms of intercellular signaling - CORRECT ANSWER✔✔--contact-dependent
| | | | | | |
-paracrine
-synaptic
-endocrine
contact-dependent signaling - CORRECT ANSWER✔✔-molecules bound to the
| | | | | | | |
surface of cells serve as signals to cells coming in contact with them
| | | | | | | | | | | |
paracrine signaling - CORRECT ANSWER✔✔-secreted molecules diffuse locally
| | | | | | | |
and trigger a response in neighboring cells
| | | | | |
synaptic signaling - CORRECT ANSWER✔✔-a type of local signaling specific to
| | | | | | | | | | |
neurotransmitters in nerve cells | | |
endocrine signaling - CORRECT ANSWER✔✔-A type of long-distance signaling that
| | | | | | | | |
utilizes hormones.
| |
