Question

which of the following best describes active transport

Answer 1

Answer:

( A )  it moves the substance against the concentration gradient  

Answer 2

Active transport moves substances against the concentration gradient.

What is active transport?

Active transport is the process by which a substance moves from an area of its low concentration to an area of its high concentration against the concentration gradient.

Is energy required in this process?

Yes, chemical energy is required for this process.

Is there special protein used in this process?

This process uses carrier proteins, pumps.

What are the  types of active transport?

It is of two types:

• Primary active transport: it uses ATP as a source of energy.
• Secondary active transport: The transport of one substance along the concentration gradient is coupled with the transport of other substance against the concentration gradient.

To learn more about active transport, concentration gradient, and chemical energy here,

https://brainly.com/question/12133248

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