wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Blood clotting requires _________________.

A
Na+ and K+
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Na+ and prothrombin
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Na+ and thromboplastin
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Ca2+ and thromboplastin
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is C Ca2+ and thromboplastin
  • Thromboplastin or thrombokinase (TPL) is a plasma protein aiding blood coagulation through catalyzing the conversion of prothrombin to thrombin. Thrombin is the principal enzyme of hemostasis. It catalyzes the conversion of fibrinogen to fibrin and activates procoagulant factors V, VIII, XI, and XIII. Additionally, when bound to thrombomodulin, it activates protein C, an anticoagulant zymogen.
  • Blood clotting occurs at the point of injury to control bleeding from blood vessels . The platelets produce a substance that combines with calcium ions in the blood to form thromboplastin, which in turn converts the protein prothrombin into thrombin in a complex series of reactions.

So, the correct answer is 'Ca2+ and thromboplastin'.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Platelets
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon