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Greeley [361]
3 years ago
9

What prevents food from entering the nasal cavities?

Biology
1 answer:
g100num [7]3 years ago
8 0
Valve created by soft palate keeps food out of nasal airway during swallowing
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Acetylcholine binds to a GPCR on heart muscle, making the heart beat more slowly. The activated receptor stimulates a G protein,
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Answer:

The correct answer is option (b) "addition of a drug that prevents the α subunit from exchanging GDP for GTP".

Explanation:

The G protein is a name given to a family of proteins that act as a switch in diverse cellular processes, transmitting signals from outside to inside of the cells. When a G protein receptor is activated by a neurotransmitter such as dopamine, the alpha subunit exchanges its GDP for a GTP and disassociates G-protein itself. An addition of a drug that prevents this action would prevent  G protein disassociation, which would enhance the effect of stimulating G protein that acetylcholine does.

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What type of biological molecule does the body use for long-term energy storage?
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Hello There! ^_^

Your question: What type of biological molecule does the body use for long-term energy storage..?

Your answer: Lipid is biological molecule that the body uses for long- term energy storage.

Hope this helps!








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