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Scorpion4ik [409]
3 years ago
8

Why does active transport require energy to move molecules of a substance across a cell membrane?

Biology
1 answer:
Fed [463]3 years ago
7 0

Answer:

The substance moves from low to high concentration, against the concentration gradient.

Explanation:

When molecules move from high to low concentration, it is known as Diffusion. It moves with the concentration gradient and does not require energy.

However, when molecules move from low to high concentration, it is against the concentration gradient and cannot proceed without Energy. This process is called Active transport.

Cell membrane is not thick, it is thin and semi permeable.

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The fuel most commonly used in fission reactions is _____. Pu-239 Np-239 U-235 U-238
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To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas. The student then
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Select all the molecules that have stored potential energy and that can be used in aerobic respiration to generate atp.
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Carbohydrates, lipids, and protein have potential energy, and can be used in aerobic respiration to generate .

Carbohydrate- A carbohydrate is a naturally occurring substance or a derivative of one, made composed of molecules of carbon, hydrogen, and oxygen. The most prevalent organic compound is a carbohydrate, and all life depends on them.

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