Ques:Q: Endocytosis and exocytosis are types of vesicle transport that carry very large molecules across what structure? Choices: - cell substrate - the heart - dermis - cell membrane A:

Ans:cell membrane
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Ques:Q: What is the term for land that has permanently frozen soil? Choices: - ice desert - snow-field - Arctic - permafrost A:

Ans:permafrost
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Ques:Q: What kind of reaction, in general, keeps stars shining? Choices: - magnetism - fission - evolution - fusion A:

Ans:fusion
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Ques:Q: Name a carbonyl in which the carbon atom is bonded to one carbon atom and one hydrogen atom (or two hydrogen atoms). Choices: - ketone - acetylcholine - ester - aldehyde A:

Ans:
aldehyde
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