Question

in animals, glucose is absorbed from the gut into intestinal cells against its concentration gradient. this one - way process requires energy to work. which of the following best describes how glucose is absorbed into intestinal cells? (1 point)
by osmosis
by a buffer
by active transport
by diffusion

Explanation:

Osmosis is the movement of water, a buffer is related to pH - regulation, diffusion is movement down a concentration gradient. Active transport moves substances against their concentration gradient and requires energy. Since glucose is absorbed against its concentration gradient and energy is needed, it is active transport.

Answer:

C. by active transport