Question

A substance Z moves across the cell membrane from an area of low concentration to an area of high concentration with the help of a protein molecule that binds to it. A subsequent shape change in the protein helps it to convey Z across the membrane. What word(s) below accurately describe the type of transport that has occurred?

a. active transport
b. simple diffusion
c. facilitated diffusion
d. passive transport
e. c and d

Answer 1

The answer to this question is without a doubt: active transport

Step-by-step explanation:

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