Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

6. Cell Membrane & Transport

Passive vs. Active Transport

Microbiology

6. Cell Membrane & Transport

Passive vs. Active Transport

Previous problemNext problem

Struggling with Microbiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which option below best describes a transporter that requires ATP to move molecules A and B out of the cell?

An active antiporter.

A passive antiporter.

A passive symporter.

An active uniporter.

An active symporter.

Previous problemNext problem

Verified step by step guidance

Understand the concept of transporters: Transporters are proteins that facilitate the movement of molecules across cell membranes. They can be classified based on their energy requirements and the direction of molecule movement.

Differentiate between active and passive transport: Active transport requires energy, usually in the form of ATP, to move molecules against their concentration gradient. Passive transport does not require energy and moves molecules along their concentration gradient.

Define antiporter and symporter: An antiporter moves two or more molecules in opposite directions across a membrane, while a symporter moves two or more molecules in the same direction.

Identify the role of ATP in active transport: Active transporters, such as active symporters, use ATP to move molecules against their concentration gradient, often moving multiple molecules simultaneously.

Apply the definitions to the problem: The problem asks for a transporter that requires ATP to move molecules A and B out of the cell. An active symporter would move both molecules in the same direction using ATP, but the correct answer should be an active antiporter, which moves molecules in opposite directions using ATP.