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WorksheetsAP Biology Cell Communication + Nervous System
Total questions: 22
Worksheet time: 11mins
An example of LOCAL cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
An example of DIRECT cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
Name the structure labeled 'B' (see image)
Post synaptic terminal
Receptor
Ligand
Neurotransmitter
The structure labeled 'E' is called _____ and is filled with ______
Vacuole; lipids
Synapse; neurotransmitters
Membrane; lipids
Vesicle; neurotransmitters
Sensory neurons are also called ____________ neurons
Afferent
Efferent
Motor neurons send information _______
to the brain for processing
away from the brain to muscles
Any signal molecule that binds to a receptor is called a _______.
Neurotransmitter
Ligand
Receptor
Acetylcholine
What is 'C' labeling? (See image)
G protein
Adenylyl Cyclase
Kinase
ATP
What is 'D' labeling? (See image)
Alpha subunit
Glycogen
Kinase
ATP
What is 'F' labeling? (See image)
cAMP
ATP
Alpha subunit
G protein
ATP each lose TWO phosphates to adenylyl cyclase. After losing two phosphate ATP becomes _______.
ADP
Adenylyl phosphate
Protein kinase
cyclic AMP (cAMP)
cAMP binds to ________ and phosphorylates the catalytic portion.
Phosphorylase
Adenylyl cyclase
Protein kinase
ATP
cAMP is considered a "secondary messenger" which takes the original message (from the ligand) and _____________.
amplifies it (spreads/grows it)
shuts it off
simply transfers the message to one kinase molecule
In our food lab last Friday, gymnema tea binds to taste receptors and blocks _________ from binding.
water
glucose
protein
cellulose
Reflexes are much quicker than other actions, because the signal _______.
Bypasses the brain
Goes to the brain faster
Which part of a neuron RECEIVES a signal?
Dendrites
Axon Terminals
During an action potential, what occurs during 'A' (see graph)?
Sodium rushes into the cell
Potassium rushes out of the cell
The sodium potassium pump carefully resets the original internal and external charges
Failure to reach threshold - no action potential
During an action potential, what occurs during 'B' (see graph)?
Sodium rushes into the cell
Potassium rushes out of the cell
The sodium potassium pump carefully resets the original internal and external charges
Failure to reach threshold - no action potential
During an action potential, what occurs during 'C' (see graph)?
Sodium rushes into the cell
Potassium rushes out of the cell
The sodium potassium pump carefully resets the original internal and external charges
Failure to reach threshold - no action potential
During an action potential, what are sections A, B, and C (in that order) called?
Depolarization, Repolarization, Hyperpolarization
Repolarization, Depolarization, Hyperpolarization
Hyperpolarization, Depolarization, Repolarization
What's significant about -55 mV?
Charge has to make it higher than -55mV in order for the action potential to occur
-55mV determines when potassium (K+) leaves the cell
-55mV determines when the sodium potassium pump begins to reset ions
An example of DISTANCE cell communication is:
White blood cells bumping into each other sharing antigen info
Neurons communicating across a synapse
Hormones traveling through the blood stream to target tissues
