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Doctors Medicines MCQs Q&A

Which vitamin activates proteins and calcium essential for blood clotting?

Which vitamin activates proteins and calcium essential for blood clotting? Correct Answer Vitamin K

The correct answer is Vitamin K.

Key Points

  • Vitamins
    • Vitamins are chemical compounds that are required in small amounts for growth and good health and are obtained from our food.
    • The vitamins are not synthesized in the body that's why they must be supplied through the diet.
  • ​Vitamin K
    • ​It helps in blood clotting and the prevention of excessive bleeding.
    • There are three derivatives of vitamin K- K1 (Phylloquinone), K2 (Menaquinone), and K3 (Menadione).​

Additional Information

  • ​Vitamin C
    • Vitamin C is a water-soluble compound found in living organisms.​
    • It is an essential nutrient for various metabolism in our body and also serves as a reagent for the preparation of many materials in the pharmaceutical and food industry.
    • Vitamin C also known as ascorbic acid is an essential nutrient in many multicellular organisms, especially in humans.
    • Ascorbic acid is a water-soluble vitamin and is found in variable quantities in fruits and vegetables and organ meats.
Vitamins, their chemical names, and deficiency disease
Vitamins Chemical Name Deficiency Disease
Vitamin A Retinol Night Blindness
Vitamin B1 Thiamine Beri-Beri
Vitamin B2 Riboflavin Angular Stomatitis
Vitamin B3 Niacin Pellagra
Vitamin B5 Pantothenic Acid Paresthesia
Vitamin B6 Pyridoxine Anaemia
Vitamin B7 Biotin Dermatitis
Vitamin B9 Folic Acid Megaloblastic Anemia
Vitamin B12 Methylcobalamin Anaemia
Vitamin C Ascorbic Acid Scurvy
Vitamin D Cholecalciferol Rickets
Vitamin E Tocopherols Less Fertility
Vitamin K Menaquinones Non-Clotting of Blood
  • ​Fat-Soluble Vitamins: Vitamins K, E, D, A.
  • Water Soluble Vitamins: Vitamins B, C.

Related Questions

Consider the following statements about the Open and Closed Blood Circulatory System:   A) Open blood circulatory system does not contain special blood vessels to carry oxygenated and deoxygenated blood, while in the closed blood circulatory system blood vessels are present. B) Oxygenated and Deoxygenated blood gets mixed in the closed blood circulatory system, while oxygenated and deoxygenated blood does not get mixed in the open blood circulatory system. Choose the correct statement.
In the question two statements are given, followed by two conclusions, I and II. Read all the conclusions and then decide which of the given conclusions logically follow/s from the given statements. Statements: All white blood cells are red blood cells. Some blood cells are red blood cells. Conclusions: I. All blood cells are red blood cells, is a possibility. II. Some red blood cells are not blood cells.
In the following question, the first and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/passage is split into four parts and named P, Q, R, S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. S1. Blood donation refers to a practice where people donate their blood to people so it helps them with their health problems. P. It is also a sign of humanity that unites people irrespective of caste, creed, religion, and more. Q. If the body loses blood in excessive amounts, people to get deadly diseases and even die.  R. Blood is one of the most essential fluids of our body that helps in the smooth functioning of our body. S. Thus, we see how blood donation is literally life-saving which helps people. S6. To raise awareness about this life-saving procedure, the world observes 14th June as Blood Donor Day.
Consider the following statements with respect to Blood Plasma : 1. It makes up about one-fifth of the body's total blood volume. 2. It  Supplies critical proteins for blood clotting and immunity. 3. It Helps maintain blood pressure and volume. Which of the statements given above are correct?
Which of the following represents correct matching of the different vitamins in column A with their functions in column B?  Column A  Column B (a)  Vitamin A (i) Helps body to use calcium for bones and teeth (b) Vitamin C (ii) Keeps our skin and eyes healthy (c) Vitamin D (iii)  Helps body to fight many diseases (d) Vitamin B (iv) Proper functioning of body cells and maintaining health
Which of the following is a fat-soluble vitamin that plays a role in blood clotting, bone metabolism and regulating blood calcium levels.
Under the ABO method, a person with an unknown blood group loses a lot of blood in a road accident and needs an immediate blood transfusion. A friend of his, who has a valid certificate of his blood group, requests for blood donation without any delay. The blood group of the blood donor is:
In a blood donation camp, 100 people donated blood. 37 of them had blood group ’A’, 31 had blood group ‘B’, 14 had blood group ‘O’ and rest had blood group ‘AB’. If a sample is chosen at random, what is the probability that the sample contains blood of group ‘AB’?
Which one of the following pairs is not correctly matched?   Vitamin Role  A.   Vitamin B12  anti anaemic factor  B.  Vitamin C  antiscorbutic factor  C.  Vitamin D  anti sterility factor  D.  Vitamin K  antihaemorrhagic  factor
Which of the following pairs is NOT correctly matched? (Vitamin) (Rich Source) (a) Vitamin B6 Rice bran (b) Vitamin B2 Cod-liver oil (c) Vitamin E Wheat germ oil (d) Vitamin K Alfalfa