The vitamin that is required for the synthesis of clotting factors is: MCQ with Answer and Explanation

The vitamin that is required for the synthesis of clotting factors is:
A. Vitamin A
B. Vitamin K
C. Vitamin C
D. Vitamin E
Answer: Option B
Solution (By JKSSB Mock Tests)
Vitamin K is a cofactor for the enzyme γ-glutamyl carboxylase, which adds carboxyl groups to glutamic acid residues in clotting factors II, VII, IX, and X, allowing them to bind calcium and participate in coagulation. Deficiency leads to bleeding tendency.

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Practice More Biology Questions

Question #1
Which of the following is an example of an amphibian?
A. Lizard
B. Snake
C. Turtle
D. Frog

Correct Answer: Option D


Explanation:
Frogs belong to the class Amphibia, characterized by a life cycle that includes an aquatic larval stage (tadpole) with gills and an adult stage with lungs, moist skin, and a three-chambered heart. Turtle, snake, and lizard are reptiles, with dry scaly skin and amniotic eggs. Amphibians are the first terrestrial vertebrates but depend on water for reproduction.

This question belongs to: Science Biology
Question #2
Consider statements about ecology: 1. A population consists of individuals of the same species. 2. A community consists of interacting populations. 3. An ecosystem consists of biotic and abiotic components. Which are correct?
A. 1 and 3 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3

Correct Answer: Option D


Explanation:
A population is a group of individuals of the same species living in a specific geographic area and capable of interbreeding. A community comprises all the interacting populations of different species (plants, animals, microbes) living together in a defined area. An ecosystem is a functional unit of nature that encompasses both the biotic (living community) and abiotic (non-living physical environment like soil, water, sunlight) components, interacting as a complex system. All statements are correct.

This question belongs to: Science Biology
Question #3
Which of the following is a saturated fatty acid?
A. Palmitic acid
B. Linolenic acid
C. Oleic acid
D. Linoleic acid

Correct Answer: Option A


Explanation:
Saturated fatty acids have no double bonds between the carbon atoms in their hydrocarbon chain, making them 'saturated' with hydrogen atoms. They are typically solid at room temperature. Palmitic acid and stearic acid are common saturated fats. Oleic, linoleic, and linolenic acids are unsaturated fatty acids, containing one or more double bonds.

This question belongs to: Science Biology