Table of contents

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1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

11. Biological Membranes and Transport

Facilitated Diffusion

Biochemistry

11. Biological Membranes and Transport

Facilitated Diffusion

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Multiple Choice

Movement of water across a membrane is facilitated by proteins called _______:

Annexins.

Aquaporins.

Pores.

Hydroporins.

Selectins.

Symporters.

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Verified step by step guidance

Understand the concept of osmosis: Osmosis is the movement of water molecules across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.

Identify the role of proteins in facilitating water movement: Certain proteins embedded in the cell membrane facilitate the movement of water molecules across the membrane.

Recognize the specific protein involved: Aquaporins are the proteins that specifically facilitate the rapid transport of water across cell membranes.

Differentiate aquaporins from other membrane proteins: While other proteins like symporters and selectins have different functions, aquaporins are specialized for water transport.

Conclude that aquaporins are the correct answer: Based on the understanding of their function, aquaporins are the proteins that facilitate the movement of water across membranes.