MCQ practice · SSC Biology Board questions · Chapter 6: Transport in Organisms
Which vitamin and ion are involved in blood clotting?
Think it through first, then pick an option.
- a A and Na
- b K and Ca
- c C and Mg
- d D and Fe
Answer and explanation
Correct answer: b K and Ca
Vitamin K and calcium ions are involved in clotting.
Why the other options are wrong
- a A and Na: Vitamin A and sodium are not in the book's clotting story.
- c C and Mg: Vitamin C and magnesium are not in the book's clotting story.
- d D and Fe: Vitamin D and iron are not in the book's clotting story.
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