Which of the following provides insulation for the neuron?
a. synapse
b. axon
c. dendrite
d. Schwann cell
e. microglial cell
D
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In describing the initiation and transmission of action potentials in neurons, it would be INCORRECT to say that
A. the rate of transmission of an action potential is directly related to the diameter of the axon. B. information about the intensity of a stimulus is conveyed by changes in the size of the action potential generated. C. the resting potential is maintained by differential ion permeabilities and the sodium-potassium pump. D. a stimulus to the neuron can either depolarize or hyperpolarize the neuronal membrane.
Systemin can correctly be described as a(n)
A. peptide. B. apoplast. C. receptor. D. leaf lipid. E. carbohydrate.
Which pathway generates the most ATP?
a. fermentation b. glycolysis c. photosynthesis d. Kreb's cycle e. electron transport chain
What pattern of inheritance applies to a woman with type A blood who has the alleles IA and i?
A) polygenic inheritance B) simple dominance C) codominance D) sex-linked recessive inheritance