Bio 181 ASU Exam 3 Questions And Answers Latest
Solutions
T or F: Potassium ions are at high concentrations inside of cells, including neurons ANS True
The action potential is a result of: ANS the movement of ions
The post-synaptic cell can be: ANS in glands, muscle cells and neurons
Th resting potential of a neuron is ANS -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 ANS false
T or F: Voltage gated ion channels open when a protein binds to the receptor ANS false
T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells ANS false
T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid ANS false
In the motor end plate, the event that is the immediate trigger for exocytosis is ANS calcium ions
T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion channel.
ANS False
T or F: Only pre-synaptic neurons are coated with myelin. ANS False
T or F: When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. ANS
True
T or F: Receptors are made from membrane-bound polyribosomes. ANS True
, The terminal web: ANS is a site of exocytosis
T or F: Excitatory synapses cause depolarization of the post-synaptic cell ANS True
T or F: The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. ANS true
The neural tissues are: ANS spinal cord, sensory neurons and brain
T or F: the axon from a pre-synaptic cell contacts the axon of another neuron ANS false
T or F: The receptors in post-synaptic cells are the basis on which the synapse can be defined as inhibitory or
excitatory ANS false
4 types of glial cells ANS schwann, oligodendrocytes, astrocytess and microglia
T or F: The axon hillock in the pre-synaptic neuron fires based on temporal and spatial summation of inputs
ANS true
The central nervous contains ANS spinal column and brain
T or F: Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to start the action
potential in the postsynaptic cell. ANS true
T or F: Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that
results in a myelin coating. ANS false
T or F: Insulin is a ligand ANS true
T or F: Vitamin D causes the parathyroid to inhibit new PTH synthesis ANS true
Solutions
T or F: Potassium ions are at high concentrations inside of cells, including neurons ANS True
The action potential is a result of: ANS the movement of ions
The post-synaptic cell can be: ANS in glands, muscle cells and neurons
Th resting potential of a neuron is ANS -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 ANS false
T or F: Voltage gated ion channels open when a protein binds to the receptor ANS false
T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells ANS false
T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid ANS false
In the motor end plate, the event that is the immediate trigger for exocytosis is ANS calcium ions
T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion channel.
ANS False
T or F: Only pre-synaptic neurons are coated with myelin. ANS False
T or F: When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. ANS
True
T or F: Receptors are made from membrane-bound polyribosomes. ANS True
, The terminal web: ANS is a site of exocytosis
T or F: Excitatory synapses cause depolarization of the post-synaptic cell ANS True
T or F: The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. ANS true
The neural tissues are: ANS spinal cord, sensory neurons and brain
T or F: the axon from a pre-synaptic cell contacts the axon of another neuron ANS false
T or F: The receptors in post-synaptic cells are the basis on which the synapse can be defined as inhibitory or
excitatory ANS false
4 types of glial cells ANS schwann, oligodendrocytes, astrocytess and microglia
T or F: The axon hillock in the pre-synaptic neuron fires based on temporal and spatial summation of inputs
ANS true
The central nervous contains ANS spinal column and brain
T or F: Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to start the action
potential in the postsynaptic cell. ANS true
T or F: Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that
results in a myelin coating. ANS false
T or F: Insulin is a ligand ANS true
T or F: Vitamin D causes the parathyroid to inhibit new PTH synthesis ANS true
