AP Biology · Unit 2: Cells

2.8 Mechanisms of Transport

In short

You must understand that metabolic energy (such as ATP) is required for the active transport of molecules and ions across membranes to establish and maintain electrochemical gradients. The scope includes knowing that membrane proteins are necessary for active transport, and specifically that the Na+/K+ pump and ATPase contribute to the maintenance of the membrane potential.

Last updated

How is Mechanisms of Transport tested on the exam?

This topic is paired with the suggested skill 'Concept Explanation' (1.B), which requires you to explain biological concepts and processes. You should be prepared to describe active transport mechanisms, specifically identifying the need for metabolic energy (ATP) and membrane proteins, and explaining the role of the Na+/K+ pump and ATPase in maintaining membrane potential.

Practice this topicComing soon

Free practice questions with full explanations, and instant marking of your free-response answers.

Mechanisms of Transport: common questions

What do you need to know about Mechanisms of Transport for AP Biology?

You must understand that metabolic energy (such as ATP) is required for the active transport of molecules and ions across membranes to establish and maintain electrochemical gradients. The scope includes knowing that membrane proteins are necessary for active transport, and specifically that the Na+/K+ pump and ATPase contribute to the maintenance of the membrane potential.

How is Mechanisms of Transport tested on the AP Biology exam?

This topic is paired with the suggested skill 'Concept Explanation' (1.B), which requires you to explain biological concepts and processes. You should be prepared to describe active transport mechanisms, specifically identifying the need for metabolic energy (ATP) and membrane proteins, and explaining the role of the Na+/K+ pump and ATPase in maintaining membrane potential.

Where does Mechanisms of Transport fit in AP Biology?

Mechanisms of Transport is topic 2.8 in Unit 2: Cells of AP Biology.

Want help mastering this topic?

Work through Mechanisms of Transport one-on-one with an AP Guru tutor.

Book a free demo class