Prothrombin $\stackrel{a}{\to }$ Thrombin Fibrinogen $\stackrel{b}{\to }$ Fibrin Recognise a and b

1. a-thrombokinase, b-thrombinase
2. a-fibrin, b-thrombokinase
3. a-thrombokinase, b-thrombin
4. a-thrombinase, b-thrombokinase

Q. Which of these is/are inactive forms
(i) Fibrin (ii) Fibrinogen (iii) Thrombin (iv) Prothrombin (v) Thrombokinase

Q. Fibrin, Platelets, Thromboplastin, Fibrinogen, Thrombin.

Q. Which of the following is / are wrong about blood clotting?
A. Fibrinogen $\stackrel{Thromboplastin}{\to }Thrombin$
B. Injured tissue + blood Platelets $\to$ Release thromboplastin
C. Prothrombin $\stackrel{Thrombin}{\to }$ fibrin
D. Fibrin + Red Blood corpuscles $\to$ Blood clot

Q. Select the correct option for given reaction occurs during blood clotting–

$\text{(i)}$ → Thrombin → Fibrin

$\text{(ii)}$ → Prothrombin → Thrombin

Q. Identify the correct sequence of blood coagulation (a) Activation of prothrombin (b) Formation of prothrombin activator (c) Formation of blood clot (d) Conversion of fibrinogen to fibrin