Question

Ultrafiltrate generated by the glomerulus is having all the constituents of the blood plasma except

• A. protein
• B. RBC
• C. WBC
• D. All of these

Answer 1

The correct option is A

protein

Explanation of the correct option:

The correct option is A:

1. The process by which the waste products that are harmful to the body are removed from the body is known as excretion.
2. The first step in urine formation is glomerular filtration or ultrafiltration.
3. All constituents of blood can pass finely through the glomerular membrane into the lumen of the Bowman's capsule except proteins.
4. Proteins cannot pass through this layer due to their larger size.

Explanation of the incorrect options:

Option B:

1. The red blood cells (RBCs) or erythrocytes are able to pass through the glomerular membrane along with the plasma.

Option C:

1. The white blood cells (WBCs) or leucocytes also pass through the layer of the glomerular membrane.

Option D:

1. Since all the components except proteins can come out of ultrafiltration, option D is incorrect.