Question

Reabsorption of chloride ion from glomerular filtrate in kidney tubule occurs by

• A. Diffusion
• B. Active transport
• C. Brownian movements
• D. None of these

Answer 1

The correct option is A

Diffusion

The correct option is A

Explanation of the correct option:

1. The first process is the formation of glomerular filtrate in the bowman’s capsule.
2. This filtrate then passes down to the tubules, where mineral reabsorption occurs.
3. Mostly chloride ion is reabsorbed in the distal convoluted tubule through simple diffusion.
4. Diffusion is short-distance transport that occurs in gases and liquids in the direction of high concentration to low concentration.
5. The absorption is also aldosterone, which causes an increase in salt when it releases into the body and reabsorption water from the kidney into the bloodstream.

Explanation of the incorrect option:

Option B:

1. Active transport requires energy.
2. It transports ions from high concentration to low concentration through pumps.
3. It works in a downhill direction, and chloride ions reabsorption occurs in an uphill direction.
4. It is a type of cellular transport.

Option C:

1. Invisible molecules were striking the bacteria, causing a continuous vibrating motion called a Brownian movement.
2. Brownian movements refer to the random motion of particles in a liquid due to disturbance.
3. This type of movement occurs in liquids and gases. It is not the process of transport.

Final answer: Chloride ion is reabsorbed by diffusion.