Biology, 23.12.2020 20:50 mel2001love
Acetylocholine is a neurotransmitter that can activate an action potential (nerve impulse) in a postsynaptic neuron (Figures 1 and 2). A
postsynaptic neuron is the next neuron in the chain of neurons receiving impulses. A researcher is investigating the effect of a particular
neurotoxin that causes the amount of acetylcholine released from the presynaptic neuron to increase.
(a). Describe the immediate effect of the neurotoxin on the number of action potentials in a postsynaptic neuron. Predict whether the
maximum membrane potential of the postsynaptic neuron will increase, decrease, or stay the same.
(b). The researcher proposes two models, A and B, for using acetylcholinesterase (AChE), an enzyme that degrades acetylcholine, to prevent the
effect of the neurotoxin. In model A, ACHE is added to the synapse. In model B, ACHE is added to the cytoplasm of the postsynaptic cell. Predict
the effectiveness of EACH proposed model. Provide reasoning to support your predictions.
Answers: 3
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1. the is the thinnest part of the earth. 2. the is the thickest part of the earth. 3. what metals are mentioned in the text?
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Biology, 22.06.2019 19:00
Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall
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Acetylocholine is a neurotransmitter that can activate an action potential (nerve impulse) in a post...
Mathematics, 25.10.2019 00:43
Mathematics, 25.10.2019 00:43