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WorksheetsFinal Exam 565-585
Total questions: 17
Worksheet time: 9mins
What kind of impulses do neurons transmit?
Chemical
I don't know
Electrical
Potential
What color is the Nucleus?
yellow
green
purple
red
What color is the axon or axon terminals?
purple
green
red
blue
When a neuron is inactive the sodium is _________ of
the cell
inside
outside
neither
I dunno
Sodium ions are ________ the cell during its resting
period
inside
outside
Potassium ions are _______ the cell during its
resting potential?
inside
outside
Sodium ions are _______ the cell during its action
potential
inside
outside
Resting Potential
The energy that carries you from your fridge to your bed
The energy that carries you from your bed to your fridge
The level of electrical potential on a membrane of a neuron when it is not conducting
Probably around 1 a-clock right after lunch
Action Potential
The electrical potential of a neurons membrane when an impulse is being fired
I dunno
Waking up
A change from negative to positive. The activated state.
Depolarization
Repolarization
Realization
nation
A change back from positive to negative. The resting state.
Depolarization
Repolarization
Nation
Somethin that starts with a n
Nerve impulses are action potentials propagated along
the__________________________
Arm
Leg
Neurons of Axons
Axon of Neurons
Once inside the nerve cell, the Na+ will diffuse farther down the cell, making it easier to activate down the line. It
reduces the concentration gradient in the part of the neuron that has not yet been activated. (makes it easier to activate the next part of the cell to turn it positive)
(this describes)???????
Local Currents
Riptide Currents
Lake Currents
Not a current
Junctions between neurons and between neurons and receptor or effector cells.
slots
gap
synapses
hole
A nerve impulse is only initiated IFFFFFFF
I dunno
the threshold potential is reached
3 amps
it isn't initiated
Explain why acetylcholine only remains
bound to a membrane receptor for a short
time
just because
it doesn't have to be present
that's a dumb question
The enzyme Acetylcholinesterase is present in the synaptic cleft and rapidly moves down and removes it
How do neonicotinoids in pesticides kill
insects?
Makes it taste gross so they don't eat it
Messes up their food
They bind to acetylcholine receptors in insect brains. As a result the receptors cannot activate the cells. This kills the insect, because they rely on acetylcholine more than other creatures.
they don't kill them
