Question

Why does active transport requires energy? Give some materials which are

transported actively trough plasma membrane​

Answer 1

Answer:

In a symporter, two substrates are transported in the same direction across the membrane. ... These proteins have receptors that bind to specific molecules (e.g., glucose) and transport them across the cell membrane. Because energy is required in this process, it is known as 'active' transport.

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Answer 2

ANSWER

Active transport requires some energy to move substances across a plasma membrane, often because the substances are moving to an area of lower concentration from an area of higher concentration or because of their large size.

Simple Diffusion across the cell plasma membrane. Substances such as oxygen, carbon dioxide, hydrophobic molecules such as lipids, to pass through the cell membrane down their concentration gradient through the simple diffusion.

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