Identify the components labelled (A-D) in the given flow chart of the blood clotting process.
Identify the components labelled (A-D) in the given flow chart of the blood clotting process.
The correct option is A A - Thromboplastin, B - Prothrombinase, C - Thrombin, D - Fibrinogen
Option A. A - Thromboplastin, B - Prothrombinase, C - Thrombin, D –
Fibrinogen
Reason: In the following diagram, the process of blood clotting.
In the first step at the site of an injury, the blood platelets disintegrate
and release a phospholipid, called platelet factor-3. Injured tissues also
release a lipoprotein factor called thromboplastin. These two factors combine
with calcium ions and certain proteins of blood plasma to form an enzyme called
prothrombinase. In the second step, prothrombinase inactivates heparin in the
presence of calcium. Prothrombinase catalyzes the breakdown of prothrombin into an
active protein called thrombin. In the third step, thrombin acts as an enzyme and
first brings about depolymerization of fibrinogen into its monomers. Later
thrombin stimulates repolymerization of these monomers into long insoluble
fiber-like polymers called fibrin.
Option A. A - Thromboplastin, B - Prothrombinase, C - Thrombin, D – Fibrinogen
Reason: In the following diagram, the process of blood clotting. In the first step at the site of an injury, the blood platelets disintegrate and release a phospholipid, called platelet factor-3. Injured tissues also release a lipoprotein factor called thromboplastin. These two factors combine with calcium ions and certain proteins of blood plasma to form an enzyme called prothrombinase. In the second step, prothrombinase inactivates heparin in the presence of calcium. Prothrombinase catalyzes the breakdown of prothrombin into an active protein called thrombin. In the third step, thrombin acts as an enzyme and first brings about depolymerization of fibrinogen into its monomers. Later thrombin stimulates repolymerization of these monomers into long insoluble fiber-like polymers called fibrin.
