Biology, 02.04.2020 21:35 123abc321cbaabc
17. Which of the following statements are accurate?
A. Neurotransmitters can act as ligands.
B. Acetylcholine is a neurotransmitter. It can bind to an acetylcholine receptor on the surface of a cell. If this receptor is also a sodium channel, we would call acteylcholine a ligand and its receptor a ligand gated receptor.
C. Neurotransmitters can act as chemical signals between two neurons.
D. Diffusion is a type of passive transport and does not require energy. Sodium channels are an example of a membrane bound protein that allows diffusion of sodium within requiring energy (ATP).
E. Ion pumps do not require energy (e. g. ATP) in order to move molecules across the membrane.
Answers: 1
Biology, 22.06.2019 13:00
Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now
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Biology, 22.06.2019 17:30
Select the correct answer. what does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms
Answers: 2
17. Which of the following statements are accurate?
A. Neurotransmitters can act as liga...
A. Neurotransmitters can act as liga...
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