Human Anatomy and Physiology : III. Vitamins And Nutrition Part-I

Total Questions: 50

31. Which of the following vitamins does not get stored in the body? [U.P.R.O./A.R.O. (Mains) 2014]

Correct Answer: (b) Vitamin C
Solution:The body cannot store vitamin C. Vitamins A, D, E and K are fat-soluble, which means they bond with fat molecules and can be stored in the body's organs (particularly the liver), zones or blood for long periods of time. Vitamin C. on the her hand is actually water-soluble and bonds instead of water, which is flushed out of the body via the urine rather of quickly

32. Which of the following vitamin helps in blood clotting in humans?

Correct Answer: (c) Vitamin K
Solution:Vitamin K is involved in the post-translational modification of several proteins, particularly those involved in the coagulation cascade. This modification allows these proteins to bind calcium ions, which is necessary for the formation of stable blood clots.

A lack of vitamin K can lead to a deficiency in the production of these clotting factors, resulting in prolonged bleeding, bruising, and an increased risk of hemorrhage. Newborn infants, especially breastfed infants, are particularly vulnerable to vitamin K deficiency, as their bodies have limited stores of the vitamin and it may not be readily absorbed through breast milk.

Certain medications, like long-term use of antibiotics, can also interfere with vitamin K absorption and production, potentially leading to deficiency. While vitamin K is best known for its role in blood clotting, research also suggests that it may play a role in bone health and cardiovascular function.

33. Which of the following vitamin's deficiency causes disease of slow blood coagulation ? [R.A.S./R.T.S. (Pre) 1992]

Correct Answer: (d) Vitamin K
Solution:Vitamin K is involved in the post-translational modification of several proteins, particularly those involved in the coagulation cascade. This modification allows these proteins to bind calcium ions, which is necessary for the formation of stable blood clots.

A lack of vitamin K can lead to a deficiency in the production of these clotting factors, resulting in prolonged bleeding, bruising, and an increased risk of hemorrhage. Newborn infants, especially breastfed infants, are particularly vulnerable to vitamin K deficiency, as their bodies have limited stores of the vitamin and it may not be readily absorbed through breast milk.

Certain medications, like long-term use of antibiotics, can also interfere with vitamin K absorption and production, potentially leading to deficiency. While vitamin K is best known for its role in blood clotting, research also suggests that it may play a role in bone health and cardiovascular function.

34. Which of the following vitamins is mainly responsible for blood coagulation in human being? [U.P.P.C.S. (Pre) 2020]

Correct Answer: (a) Vitamin K 
Solution:Vitamin K is involved in the post-translational modification of several proteins, particularly those involved in the coagulation cascade. This modification allows these proteins to bind calcium ions, which is necessary for the formation of stable blood clots.

A lack of vitamin K can lead to a deficiency in the production of these clotting factors, resulting in prolonged bleeding, bruising, and an increased risk of hemorrhage. Newborn infants, especially breastfed infants, are particularly vulnerable to vitamin K deficiency, as their bodies have limited stores of the vitamin and it may not be readily absorbed through breast milk.

Certain medications, like long-term use of antibiotics, can also interfere with vitamin K absorption and production, potentially leading to deficiency. While vitamin K is best known for its role in blood clotting, research also suggests that it may play a role in bone health and cardiovascular function.

35. Which one of the following vitamins is responsible for blood clotting ? [U.P.P.C.S. (Mains) 2012 ,Uttarakhand P.C.S. (Pre) 2012 ,U.P.P.C.S. (Mains) 1991]

Correct Answer: (b) K
Solution:Vitamin K is involved in the post-translational modification of several proteins, particularly those involved in the coagulation cascade. This modification allows these proteins to bind calcium ions, which is necessary for the formation of stable blood clots.

A lack of vitamin K can lead to a deficiency in the production of these clotting factors, resulting in prolonged bleeding, bruising, and an increased risk of hemorrhage. Newborn infants, especially breastfed infants, are particularly vulnerable to vitamin K deficiency, as their bodies have limited stores of the vitamin and it may not be readily absorbed through breast milk.

Certain medications, like long-term use of antibiotics, can also interfere with vitamin K absorption and production, potentially leading to deficiency. While vitamin K is best known for its role in blood clotting, research also suggests that it may play a role in bone health and cardiovascular function.

36. Which of the following vitamin is effective in blood clotting? [R.A.S./R.T.S. (Pre) 1999]

Correct Answer: (a) Vitamin K
Solution:Vitamin K is involved in the post-translational modification of several proteins, particularly those involved in the coagulation cascade. This modification allows these proteins to bind calcium ions, which is necessary for the formation of stable blood clots.

A lack of vitamin K can lead to a deficiency in the production of these clotting factors, resulting in prolonged bleeding, bruising, and an increased risk of hemorrhage. Newborn infants, especially breastfed infants, are particularly vulnerable to vitamin K deficiency, as their bodies have limited stores of the vitamin and it may not be readily absorbed through breast milk.

Certain medications, like long-term use of antibiotics, can also interfere with vitamin K absorption and production, potentially leading to deficiency. While vitamin K is best known for its role in blood clotting, research also suggests that it may play a role in bone health and cardiovascular function.

37. Which of the following vitamins deficiency causes slow blood clotting ? [66th B.P.S.C. (Pre) 2020]

Correct Answer: (d) Vitamin K
Solution:Vitamin K is involved in the post-translational modification of several proteins, particularly those involved in the coagulation cascade. This modification allows these proteins to bind calcium ions, which is necessary for the formation of stable blood clots.

A lack of vitamin K can lead to a deficiency in the production of these clotting factors, resulting in prolonged bleeding, bruising, and an increased risk of hemorrhage. Newborn infants, especially breastfed infants, are particularly vulnerable to vitamin K deficiency, as their bodies have limited stores of the vitamin and it may not be readily absorbed through breast milk.

Certain medications, like long-term use of antibiotics, can also interfere with vitamin K absorption and production, potentially leading to deficiency. While vitamin K is best known for its role in blood clotting, research also suggests that it may play a role in bone health and cardiovascular function.

38. The vitamin which is effective in blood clotting is : [60th to 62nd B.P.S.C. (Pre) 2016]

Correct Answer: (d) Vitamin K
Solution:Vitamin K is involved in the post-translational modification of several proteins, particularly those involved in the coagulation cascade. This modification allows these proteins to bind calcium ions, which is necessary for the formation of stable blood clots.

A lack of vitamin K can lead to a deficiency in the production of these clotting factors, resulting in prolonged bleeding, bruising, and an increased risk of hemorrhage. Newborn infants, especially breastfed infants, are particularly vulnerable to vitamin K deficiency, as their bodies have limited stores of the vitamin and it may not be readily absorbed through breast milk.

Certain medications, like long-term use of antibiotics, can also interfere with vitamin K absorption and production, potentially leading to deficiency. While vitamin K is best known for its role in blood clotting, research also suggests that it may play a role in bone health and cardiovascular function.

39. Which of the following vitamins is used as an antidote to anticoagulant poisons? [U.P.U.D.A./L.D.A. (Spl.) (Mains) 2010]

Correct Answer: (b) Vitamin D
Solution:Vitamin 'K' is used as an antidote to anticoagulant poisons. This vitamin is called antihemorrhagic factor. Operation of persons with deficiency of vitamin K can not be done easily because there is a fear of excess bleeding.

40. Which of the following is synthesized by intestinal bacteria? [U.P.U.D.A./L.D.A. (Spl.) (Mains) 2010]

Correct Answer: (e) Vitamin B12 & Vitamin C
Solution:Vitamin B12 and vitamin K both are synthesized by bacteria in human intestine.
  • Vitamin B12:

While bacteria in the small intestine can synthesize B12, the amount produced is limited, and B12 produced in the colon is not readily absorbable. The primary source of B12 for humans is from animal products.

  • Vitamin K:

Bacteria in the large intestine produce Vitamin K, and this is a significant source of the vitamin for humans. Dietary sources include green leafy vegetables and certain oils.