AP BIOLOGY

Detailed explanation-1: -Carrier proteins can change their shape to move a target molecule from one side of the membrane to the other. Diagram showing how a carrier protein can bind a target molecule on one side of the membrane, undergo a shape change, and release the target molecule on the other side of the membrane.

Detailed explanation-2: -A carrier protein is a transport protein that is specific for an ion, molecule, or group of substances. Carrier proteins “carry” the ion or molecule across the membrane by changing shape after the binding of the ion or molecule.

Detailed explanation-3: -The process by which a carrier protein transfers a solute molecule across the lipid bilayer resembles an enzyme-substrate reaction, and in many ways carriers behave like enzymes.

Detailed explanation-4: -Active transport proteins and enzymes are similar because they are both proteins that recognize only specific target molecules and change it shape when they bind.