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Marysya12 [62]
2 years ago
15

4. Does simple diffusion require an input of energy?

Biology
1 answer:
Sedbober [7]2 years ago
7 0

Answer:

no

Explanation:

Simple diffusion does not require energy or need the assistance of a transport protein. Other larger or charged molecules that diffuse across a membrane may need assistance from a protein.

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explain how a carrier protein can facilitate the diffusion of glucose or other substances into the cell.
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Specific chemicals are bound by carrier proteins and transferred on one side of the membrane. The conformational changes they go through next enable the molecule to cross the membrane and exit on the other side.

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Advantages of constant body temperaure
Leya [2.2K]
Proteins function optimally at a specific temperature. So if you get too hot or too cold, biochemical reactions in your body start to function less well. If the situation becomes extreme enough, they can cease to function well enough to sustain life. 

Warm-blooded animals have an advantage over cold-blooded ones in that their bodies automatically try to maintain the optimal termperature for things in their bodies to function. Cold-blooded animals depend on the environmental temperature to do this for them. That's why reptiles are very sluggish when they're cold, but will "wake up" when they get warm. 

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3 years ago
A small branch of the optic nerve, known as the ____ path extends directly from the retina to the scn.
svetoff [14.1K]

Answer;

Retinohypothalamic path


A small branch of the optic nerve, known as the retinohypothalamic path extends directly from the retina to the SCN.


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The SCN is an abbreviations for suprachiasmatic nucleus or nuclei; which is a region in the hypothalamus. that is responsible for controlling circadian rhythms.

Retinohypothalamic path is a neural input pathway that extends directly from the retina to the SCN.


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