Question

Which one of the following plasma proteins are involved in the coagulation of blood?

• A. Fibrinogen
• B. Serum amylase
• C. A globulin
• D. An albumin

Answer 1

The correct option is A

Fibrinogen

The correct option is option A

The explanation for the correct option:

1. The plasma proteins are associated with blood plasma.
2. Fibrinogen is a plasma protein involved in blood clotting.
3. Thrombin converts fibrinogen into fibrin. It forms a fibrous mesh that impedes the flow of blood.
4. It is responsible for blood clotting.

The explanation for the incorrect options:

Option B:

1. Amylase is an enzyme that converts carbohydrates to simple sugars.
2. It is a part of the digestive process.

Option C:

1. Globulin works as an enzyme and has a function as defense mechanism.
2. It is a part of the Immune system.
3. It synthesizes antibodies.

Option D:

1. Protein exerts osmotic pressure in the blood maintained by albumin.
2. It helps in excretion.

Final answer: The plasma proteins fibrinogen are involved in the coagulation of blood.