Exam (elaborations)
BIO 181 ASU EXAM 3 QUESTIONS AND ANSWERS 2024
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BIO 181 ASU EXAM 3 QUESTIONS AND ANSWERS 2024
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BIO 181 ASU EXAM 3T or F: The cell body refers to the part of the neurons that begin at the dendrites
and extend to the axon terminal - ANSWERS-false
T or F: Voltage gated ion channels open when a protein binds to the receptor -
ANSWERS-false
T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells -
ANSWERS-false
T or F: Potassium ions are at high concentrations inside of cells, including neurons
- ANSWERS-True
The action potential is a result of: - ANSWERS-the movement of ions
The post-synaptic cell can be: - ANSWERS-in glands, muscle cells and neurons
Th resting potential of a neuron is - ANSWERS--60mV
T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid - ANSWERS-
false
, In the motor end plate, the event that is the immediate trigger for exocytosis is -
ANSWERS-calcium ions
T or F: Fast Neurons as described in lecture require cytoplasmic signal
transduction to open an ion channel. - ANSWERS-False
T or F: Only pre-synaptic neurons are coated with myelin. - ANSWERS-False
T or F: When the presynaptic cell contacts a muscle cell, the synapse area is called
a motor end plate. - ANSWERS-True
T or F: Receptors are made from membrane-bound polyribosomes. - ANSWERS-
True
The terminal web: - ANSWERS-is a site of exocytosis
T or F: Excitatory synapses cause depolarization of the post-synaptic cell -
ANSWERS-True
T or F: The membrane potential (resting potential) is largely set by the Na-K-
ATPase pump. - ANSWERS-true
The neural tissues are: - ANSWERS-spinal cord, sensory neurons and brain
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