Asked by Karla Gorostieta on Jul 16, 2024
Verified
Which type of transport proteins use cell energy to move molecules across the plasma membrane?
A) Cadherins
B) Ligand-gated ion channels
C) ATP-powered pumps
D) Leak-ion channels
ATP-Powered Pumps
Membrane proteins that use the energy from ATP hydrolysis to transport ions or molecules across cell membranes against their concentration gradients.
Transport Proteins
Proteins that are involved in the movement of ions, small molecules, or macromolecules, such as nutrients and drugs across cell membranes.
Plasma Membrane
A semi-permeable membrane surrounding a cell, responsible for controlling the passage of substances in and out.
- Describe the mechanisms of membrane transport.
- Identify the differences between passive and active transport mechanisms.
- Contrast the different transport proteins and their specific responsibilities.
Verified Answer
MX
MING XUAN CHOONGJul 20, 2024
Final Answer :
C
Explanation :
ATP-powered pumps use cell energy in the form of ATP to move molecules across the plasma membrane, often against their concentration gradient.
Learning Objectives
- Describe the mechanisms of membrane transport.
- Identify the differences between passive and active transport mechanisms.
- Contrast the different transport proteins and their specific responsibilities.