Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

25. The Urinary System

Renal Physiology: Regulation of Glomerular Filtration

Anatomy & Physiology

25. The Urinary System

Renal Physiology: Regulation of Glomerular Filtration

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Multiple Choice

Glucose is removed from the filtrate in the nephron by which process?

active transport

osmosis

diffusion

filtration

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Verified step by step guidance

Understand the function of the nephron: The nephron is the functional unit of the kidney responsible for filtering blood and forming urine. It consists of structures like the glomerulus, proximal tubule, loop of Henle, distal tubule, and collecting duct.

Identify the process of glucose reabsorption: Glucose is filtered out of the blood at the glomerulus and enters the filtrate. However, the body needs to retain glucose, so it is reabsorbed in the proximal tubule.

Clarify the mechanism of glucose reabsorption: Glucose is reabsorbed from the filtrate into the blood through active transport. This process requires energy in the form of ATP and involves specific carrier proteins, such as sodium-glucose co-transporters (SGLTs), located in the proximal tubule.

Differentiate active transport from other processes: Active transport is distinct from osmosis (movement of water), diffusion (movement of molecules from high to low concentration), and filtration (movement of substances through a membrane due to pressure). Active transport moves glucose against its concentration gradient, which requires energy.

Conclude the correct answer: Based on the mechanism described, glucose is removed from the filtrate in the nephron by active transport, not osmosis, diffusion, or filtration.