Mark the pair of substances among the following which is essential for coagulation of blood.

Heparin and calcium ions

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Calcium ions and platelet factors

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Oxalates and citrates

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Platelet factors and heparin

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Solution

The correct option is B Calcium ions and platelet factors
Calcium ions and platelets are essential factors for clotting of blood. During some injury, the platelets release inactivated platelet factors that are involved in the activation of other factors involved in the formation of clots in the blood. Calcium ions in the blood catalyze the activation of many factors involved in clot formation like factor VIII, factor IX, factor V and factor XIII.
Thus, the correct answer is 'Calcium ions and platelet factors.'

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Similar questions

Mark the pair of substances among the following which is essential for coagulation of blood.
(a) heparin and calcium ios
(b) calcium ions and platelet factors
(c) oxalates and citrates
(d) platelet factors and heparin

Q. Mark, the pair of substances among the following which is essential for coagulation of blood.

Q. Identify X, Y, and Z.

\begin{matrix} Component of blood & Function (a) X & (i) Prevents blood clotting in blood vessels (b) Y & (i i) Phagocytic in nature and engulf bacteria (c) Z & (i i i) Help in blood clotting \end{matrix}

Q. Assertion :Prothrombinase enzyme act as anti-heparin. Reason: Heparin prevent coagulation of blood in blood vessels.

Q. Which of the following statements are correct?

(i)

C a^{+ 2}

is necessary for blood coagulation.
(ii)Coagulation in blood vessel is prevented during normal condition by heparin.
(iii)Clotting of blood involves changes of fibrinogen to fibrin by thrombin.
(iv)Blood clotting involves cascading process involving a number of factors present always in the active form.

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