Question

What type of active transport directly uses ATP energy to pump a solute against its concentration gradient? Which type relies on a proton-motive force?

Answer 1

Active transport is the movement of molecules across a membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. .

There are two types of active transport:

primary active transport that uses direct (ATP) for movement of ions across membrane

Ex. Sodium potassium pump is the example of primary active transport.

Secondary active transport that uses an electrochemical gradient.

Ex. active transport in human physiology is the uptake of glucose in the intestines.