Bio 181 ASU Exam 3 with complete solutions 100% Pass
T or F: Potassium ions are at high concentrations inside of cells, including neurons - -True
The action potential is a result of: - -the movement of ions
The post-synaptic cell can be: - -in glands, muscle cells and neurons
Th resting potential of a neuron is - --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 - -false
T or F: Voltage gated ion channels open when a protein binds to the receptor - -false
T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells - -false
T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid - -false
In the motor end plate, the event that is the immediate trigger for exocytosis is - -calcium ions
T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion
channel. - -False
T or F: Only pre-synaptic neurons are coated with myelin. - -False
T or F: When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. -
-True
T or F: Receptors are made from membrane-bound polyribosomes. - -True
The terminal web: - -is a site of exocytosis
, T or F: Excitatory synapses cause depolarization of the post-synaptic cell - -True
T or F: The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. - -true
The neural tissues are: - -spinal cord, sensory neurons and brain
T or F: the axon from a pre-synaptic cell contacts the axon of another neuron - -false
T or F: The receptors in post-synaptic cells are the basis on which the synapse can be defined as
inhibitory or excitatory - -false
4 types of glial cells - -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 - -true
The central nervous contains - -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. - -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. - -false
T or F: Insulin is a ligand - -true
T or F: Vitamin D causes the parathyroid to inhibit new PTH synthesis - -true
T or F: When the Sympathetic nervous system is triggered glycogen is broken down to glucose to provide
more energy. - -true
T or F: Insulin is produced by alpha cells - -false, beta cells
T or F: Potassium ions are at high concentrations inside of cells, including neurons - -True
The action potential is a result of: - -the movement of ions
The post-synaptic cell can be: - -in glands, muscle cells and neurons
Th resting potential of a neuron is - --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 - -false
T or F: Voltage gated ion channels open when a protein binds to the receptor - -false
T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells - -false
T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid - -false
In the motor end plate, the event that is the immediate trigger for exocytosis is - -calcium ions
T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion
channel. - -False
T or F: Only pre-synaptic neurons are coated with myelin. - -False
T or F: When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. -
-True
T or F: Receptors are made from membrane-bound polyribosomes. - -True
The terminal web: - -is a site of exocytosis
, T or F: Excitatory synapses cause depolarization of the post-synaptic cell - -True
T or F: The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. - -true
The neural tissues are: - -spinal cord, sensory neurons and brain
T or F: the axon from a pre-synaptic cell contacts the axon of another neuron - -false
T or F: The receptors in post-synaptic cells are the basis on which the synapse can be defined as
inhibitory or excitatory - -false
4 types of glial cells - -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 - -true
The central nervous contains - -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. - -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. - -false
T or F: Insulin is a ligand - -true
T or F: Vitamin D causes the parathyroid to inhibit new PTH synthesis - -true
T or F: When the Sympathetic nervous system is triggered glycogen is broken down to glucose to provide
more energy. - -true
T or F: Insulin is produced by alpha cells - -false, beta cells
