Which of the following best describes secondary active transport?
Show answer and explanation
Correct answer: Coupled transport using ion gradients
Secondary active transport uses the energy stored in ion gradients rather than ATP directly. The movement of one ion (typically Na+) down its gradient drives another substance against its own gradient.
Practice all 19 Plasma Membrane: Models and Transport questions
Keep practicing
More Plasma Membrane: Models and Transport questions
- Which property of the plasma membrane allows cells to maintain internal homeostasis?
- Glycoproteins and glycolipids present on the plasma membrane are mainly involved in:
- Which model best explains the dynamic nature of the plasma membrane?
- The plasma membrane is primarily composed of which two types of biomolecules?
- Which component of the plasma membrane contributes most to its selective permeability?
- Which membrane protein is primarily involved in facilitated diffusion?