Explanation
B. Lymph
Reason: Lymph is an interstitial fluid. It contains leukocytes, lymphocytes and globulin proteins. It does not have thrombocytes and so it does not have an ability to clot. Plasma is a matrix of blood that contains thrombocytes and It shows clotting.
A. New born babies
Reason: Infants have fetal hemoglobin, where has more affinity for oxygen than the hemoglobin found in adults. So, due to more affinity, oxygen binding will also be strong. The amount of oxygen released by RBC at the tissue level is deceased. So in order to compensate for the decreased oxygen availability the number of RBCs is increased.
Correct Option: D
Explanation:
Hence, Thrombocytes are the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body
D. All their internal space is available for oxygen
Reason: In Human RBCs where nucleus gets degenerates during maturation. It provides more space for oxygen carrying pigment. It lacks many cell organelles including mitochondria so respires anaerobically.
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.
Please disable the adBlock and continue. Thank you.