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