BIO 152 MODULE 4 FINAL TEST 2026
QUESTIONS WITH CORRECT ANSWERS
GRADED A+
◍ Astrocyte.
Answer: Maintain a healthy extracellular space and contribute to blood-
brain barrier
◍ Absolute.
Answer: An AP cannot be triggered
◍ sensory neurons.
Answer: Carry info to the CNS . Internal and external
◍ chemical synapse.
Answer: very narrow space beetwen cells
◍ Synaptic cleft.
Answer: gap between adjacent neurons
◍ Sodium- potassium pump is the carrier protein NA+-K+ ATPase.
Answer: 1 ATP2 K+ in3 NA+ out
◍ excitatory postsynaptic potential (EPSP).
Answer: Are depolarizing
◍ Central Nervous System.
Answer: brain and spinal cord
◍ Substance P.
Answer: pain perception
◍ Voltage.
Answer: Positive charges are concentrated in one place and negative charges
, are concentrated a different place . Produces current because opposite
charges attract
◍ Peripheral Nervous system.
Answer: everything else
◍ voltage gated channels.
Answer: response to change in membrane potential
◍ Membrane Repolarization (slide information).
Answer: Voltage-gated Na+ channels are inactivated
◍ Olygodendrocytes.
Answer: makes myelin
◍ Graded.
Answer: Potentials change in membrane potential from its resting potentials
◍ postsynaptic potential (PSP).
Answer: The graded potential in the dendrites of a neuron that is receiving
synapses from other cells
◍ Inhibitory Postsynaptic Potentials (IPSPs).
Answer: Are hyperpolarizing
◍ Axon.
Answer: Fiber that extends from the woman to the target cells . Axon
Hillock
◍ Excitable.
Answer: can be stimulated to produce an electrical current in the form of
action potentials
◍ Saltatory conduction.
Answer: Jumping nodes = fast . Each jump is new influx of sodium
◍ stretch-gated channels.
Answer: respond to tension applied to cell membrane
◍ Continous conduction.
QUESTIONS WITH CORRECT ANSWERS
GRADED A+
◍ Astrocyte.
Answer: Maintain a healthy extracellular space and contribute to blood-
brain barrier
◍ Absolute.
Answer: An AP cannot be triggered
◍ sensory neurons.
Answer: Carry info to the CNS . Internal and external
◍ chemical synapse.
Answer: very narrow space beetwen cells
◍ Synaptic cleft.
Answer: gap between adjacent neurons
◍ Sodium- potassium pump is the carrier protein NA+-K+ ATPase.
Answer: 1 ATP2 K+ in3 NA+ out
◍ excitatory postsynaptic potential (EPSP).
Answer: Are depolarizing
◍ Central Nervous System.
Answer: brain and spinal cord
◍ Substance P.
Answer: pain perception
◍ Voltage.
Answer: Positive charges are concentrated in one place and negative charges
, are concentrated a different place . Produces current because opposite
charges attract
◍ Peripheral Nervous system.
Answer: everything else
◍ voltage gated channels.
Answer: response to change in membrane potential
◍ Membrane Repolarization (slide information).
Answer: Voltage-gated Na+ channels are inactivated
◍ Olygodendrocytes.
Answer: makes myelin
◍ Graded.
Answer: Potentials change in membrane potential from its resting potentials
◍ postsynaptic potential (PSP).
Answer: The graded potential in the dendrites of a neuron that is receiving
synapses from other cells
◍ Inhibitory Postsynaptic Potentials (IPSPs).
Answer: Are hyperpolarizing
◍ Axon.
Answer: Fiber that extends from the woman to the target cells . Axon
Hillock
◍ Excitable.
Answer: can be stimulated to produce an electrical current in the form of
action potentials
◍ Saltatory conduction.
Answer: Jumping nodes = fast . Each jump is new influx of sodium
◍ stretch-gated channels.
Answer: respond to tension applied to cell membrane
◍ Continous conduction.
