Arrival of an action potential at a presynaptic cell’s
axon terminals triggers the release of __________, a
type of chemical signal. Fill in the blank(s) with the appropriate word(s).
Answer: neurotransmitter
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The advantage of nitrogen fixation to the host plant is
A. the ability to synthesize amino acids and proteins from the ammonia produced. B. the production of nucleotides required for nucleic acid synthesis. C. the production of antibiotics that protect the plant against pathogenic soil bacteria. D. the ability to use nitrogen gas instead of oxygen gas in cellular respiration, particularly when the soil is compacted.
Sudan IV, a dye that binds to nonpolar molecules, is used to detect the presence of macromolecules in food. Sudan IV would test positive in the presence of what macromolecule?
A. Starch B. DNA C. Hemoglobin D. Chitin E. Fats Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about nonpolar molecules? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Each of the following ligands binds to an intracellular receptor except
A) cortisol. B) retinoic acid. C) thyroid hormone. D) epinephrine. E) estrogen.
Psilocybin is a
A. toxin that causes bloody diarrhea. B. toxin that causes kidney failure. C. toxin that acts as a hallucinogen. D. virulence factor produced by invasive fungi. E. growth factor produced by mycoplasmas.