ASU BIO 181 GENERAL BIOLOGY EXAMINATION TWO SCRIPT 2026 FULL ANSWERS GUARANTEED PASS

ASU BIO 181 GENERAL BIOLOGY
EXAMINATION TWO SCRIPT 2026 FULL
ANSWERS GUARANTEED PASS

⩥ 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

, ⩥ 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