1. D) Because, intake of salt increases sodium levels in bloodstream and reduces the ability of kidneys\' to excrete water. Kidneys\' function is to excrete or retain sodium levels in order to regulate blood pressure. Reducing intake of sodium levels only controls high blood pressure temporarily. Whereas, increasing potassium levels by eating fruits and vegetables, balances the negative effects of sodium and helps kidneys in excretion of excess sodium out of the body; thereby lowering blood pressure. 2. B) Because, Iodine is an essential component in both thyroid hormones i.e., Thyroxine and Triidiothyronine. Lack of these hormones would give rise to the elevation of Thyroid stimulating hormone (TSH) which would increase lot of biochemical processes which involves in unwanted cellular proliferation of thyroid gland resulting in Goitre. 3. B) Because, Flouride acts on speeding up the movement of calcium and phosphate onto tooth surface. It helps remineralizing the dental cavity by forming flourapatite on tooth surface and restructuring it. It also helps in preventing osteoporosis, a bone disorder which leads to decrease in bone mass. 4. A) Vitamin A is most available in the form of Retinol. It is required for metabolic functions of Retina in the eye. It combines with certain proteins like Opsin and Rhodopsin which are light absorbing molecules necessary to see in Low light and for color vision. Vitamin A deficiency leads to night blindness and impaired vision. 5. C) Because vitamin D regulates the absorption of calcium from intestine. Parathyroid hormone (PTH) helps the kidneys\' to convert Vitamin D3 (Cholcalciferol) into active form which acts on small intestinal epithelial cells to increase the rate of absorption of calcium in the gut. Vitamin D deficiency leads to Rickets i.e., soft and weak bones and skeletal deformities. 6. B) Enriched flour contains Iron along with certain vitamins like thiamine, niacin, folic acid and riboflavin in order to restore the nutrients which are lost while preparation. It is done to eradicate certain vitamin deficiency disorders like pellagra and beriberi. Solution 1. D) Because, intake of salt increases sodium levels in bloodstream and reduces the ability of kidneys\' to excrete water. Kidneys\' function is to excrete or retain sodium levels in order to regulate blood pressure. Reducing intake of sodium levels only controls high blood pressure temporarily. Whereas, increasing potassium levels by eating fruits and vegetables, balances the negative effects of sodium and helps kidneys in excretion of excess sodium out of the body; thereby lowering blood pressure. 2. B) Because, Iodine is an essential component in both thyroid hormones i.e., Thyroxine and Triidiothyronine. Lack of these hormones would give rise to the elevation of Thyroid stimulating hormone (TSH) which would increase lot of biochemical processes which involves in unwanted cellular proliferation of thyroid gland resulting in Goitre. 3. B) Becaus.

1. 1. D) Because, intake of salt increases sodium levels in bloodstream and reduces the ability of
kidneys' to excrete water. Kidneys' function is to excrete or retain sodium levels in order to
regulate blood pressure. Reducing intake of sodium levels only controls high blood pressure
temporarily. Whereas, increasing potassium levels by eating fruits and vegetables, balances the
negative effects of sodium and helps kidneys in excretion of excess sodium out of the body;
thereby lowering blood pressure.
2. B) Because, Iodine is an essential component in both thyroid hormones i.e., Thyroxine and
Triidiothyronine. Lack of these hormones would give rise to the elevation of Thyroid stimulating
hormone (TSH) which would increase lot of biochemical processes which involves in unwanted
cellular proliferation of thyroid gland resulting in Goitre.
3. B) Because, Flouride acts on speeding up the movement of calcium and phosphate onto tooth
surface. It helps remineralizing the dental cavity by forming flourapatite on tooth surface and
restructuring it. It also helps in preventing osteoporosis, a bone disorder which leads to decrease
in bone mass.
4. A) Vitamin A is most available in the form of Retinol. It is required for metabolic functions of
Retina in the eye. It combines with certain proteins like Opsin and Rhodopsin which are light
absorbing molecules necessary to see in Low light and for color vision. Vitamin A deficiency
leads to night blindness and impaired vision.
5. C) Because vitamin D regulates the absorption of calcium from intestine. Parathyroid hormone
(PTH) helps the kidneys' to convert Vitamin D3 (Cholcalciferol) into active form which acts on
small intestinal epithelial cells to increase the rate of absorption of calcium in the gut. Vitamin D
deficiency leads to Rickets i.e., soft and weak bones and skeletal deformities.
6. B) Enriched flour contains Iron along with certain vitamins like thiamine, niacin, folic acid
and riboflavin in order to restore the nutrients which are lost while preparation. It is done to
eradicate certain vitamin deficiency disorders like pellagra and beriberi.
Solution
1. D) Because, intake of salt increases sodium levels in bloodstream and reduces the ability of
kidneys' to excrete water. Kidneys' function is to excrete or retain sodium levels in order to
regulate blood pressure. Reducing intake of sodium levels only controls high blood pressure
temporarily. Whereas, increasing potassium levels by eating fruits and vegetables, balances the
negative effects of sodium and helps kidneys in excretion of excess sodium out of the body;
thereby lowering blood pressure.
2. B) Because, Iodine is an essential component in both thyroid hormones i.e., Thyroxine and

2. Triidiothyronine. Lack of these hormones would give rise to the elevation of Thyroid stimulating
hormone (TSH) which would increase lot of biochemical processes which involves in unwanted
cellular proliferation of thyroid gland resulting in Goitre.
3. B) Because, Flouride acts on speeding up the movement of calcium and phosphate onto tooth
surface. It helps remineralizing the dental cavity by forming flourapatite on tooth surface and
restructuring it. It also helps in preventing osteoporosis, a bone disorder which leads to decrease
in bone mass.
4. A) Vitamin A is most available in the form of Retinol. It is required for metabolic functions of
Retina in the eye. It combines with certain proteins like Opsin and Rhodopsin which are light
absorbing molecules necessary to see in Low light and for color vision. Vitamin A deficiency
leads to night blindness and impaired vision.
5. C) Because vitamin D regulates the absorption of calcium from intestine. Parathyroid hormone
(PTH) helps the kidneys' to convert Vitamin D3 (Cholcalciferol) into active form which acts on
small intestinal epithelial cells to increase the rate of absorption of calcium in the gut. Vitamin D
deficiency leads to Rickets i.e., soft and weak bones and skeletal deformities.
6. B) Enriched flour contains Iron along with certain vitamins like thiamine, niacin, folic acid
and riboflavin in order to restore the nutrients which are lost while preparation. It is done to
eradicate certain vitamin deficiency disorders like pellagra and beriberi.