Question

Which one of the following correctly explains the function of a specific part of a human nephron?

• A. Henle’s loop: Most reabsorption of the major substances from the glomerular filtrate
• B. Podocytes: Create minute spaces (slit pores) for the filtration of blood into the Bowman’s capsule
• C. Distal convoluted tubule: Reabsorption of K+ ions into the surrounding blood capillaries
• D. Afferent arteriole: Carries the blood away from the glomerulus towards renal vein

Answer 1

The correct option is B

Podocytes: Create minute spaces (slit pores) for the filtration of blood into the Bowman’s capsule

The correct option is B.

Explanation of the correct option:

1. A nephron eliminates waste products and toxins from blood during urination.
2. Podocytes establish the epithelial lining (third layer) of Bowman's capsule, through which blood is filtered.

Explanation of the incorrect option:

Option A:

1. Henle’s loop is responsible for the reabsorption of substances from the glomerular filtrate.
2. It is the second segment of the U-shaped renal tubule.
3. Transport of ions and water and the concentration of urine takes place here.

Option C

1. The distal convoluted tubule lies between the macula densa and collecting duct.
2. It reabsorbs Na+ and water.
3. It is a short and thin segment of the nephron.

Option D:

Afferent arteriole brings in oxygenated blood which contains large amounts of water and nitrogenous metabolic wastes.

Final answer: The function of a specific part of a Human Nephron is “Podocytes: Create minute spaces (slit pores) for the filtration of blood into the Bowman’s capsule”.