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Aleonysh [2.5K]
3 years ago
6

Coals ,oils and gas are examples of

Biology
1 answer:
Mars2501 [29]3 years ago
5 0
Fossil Fuels/ Non-Renewable resources
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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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Answer:

-Histamine binds extracellularly to the H1 receptor.

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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.

Explanation:

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3 years ago
What is a group of ducklings called
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The answer would be flock
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