Question

Which of the following is a rapid type of absorption?

• A. Passive absorption
• B. Active absorption
• C. Salt absorption
• D. Root absorption

Answer 1

The correct option is A Passive absorption

Passive absorption is the absorption along the concentration gradient. It occurs from the region of high concentration of solute or solvent to a region of low concentration.

Active absorption is the absorption against the concentration gradient, from a region of low concentration to a region of high concentration. Because passive absorption is along the concentration gradient of substances; it is faster and does not require input of energy.

So, the correct answer is option A.