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Romashka [77]
3 years ago
6

One of the functions that related to the circulatory

Biology
1 answer:
djverab [1.8K]3 years ago
4 0

Answer:

False

Explanation:

Digestive system helps us to digest food

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Living things

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Histamine is a chemical substance released in inflammatory and allergic responses. The histamine H1 receptor on target cells is
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When histamine encounters a target cell, it binds extracellularly to the H1 receptor, causing a change in the shape of the receptor. This change in shape allows the G protein to bind to the H1 receptor, causing a GTP molecule to displace a GDP molecule and activating the G protein. The active G protein dissociates from the H1 receptor and binds to the enzyme phospholipase C, activating it. The active phospholipase C triggers a cellular response. The G protein then functions as a GTPase and hydrolyzes the GTP to GDP. The G protein dissociates from the enzyme and is inactive again and ready for reuse.

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Which of the following is the main idea of paragraph 2?
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