Tag: evs - i

Questions Related to evs - i

Which of the following is a naphthaquinone derivative?

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. Vitamin K

  2. Vitamin D

  3. Vitamin A

  4. Vitamin B

    5

Show answer
Correct Option: A
Explanation:

Vitamin K is a naphthaquinone derivative. It contains isoprene units.
It is also called as "anti-haemorrhagic" vitamin.

Which of the following is found in body?

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. Pb

  2. Cd

  3. Fe

  4. Co

Show answer
Correct Option: C,D
Explanation:

Iron and cobalt are found in the body.


Iron is present in haemoglobin present in red blood cells.

Cobalt is present in vitamin $B _{12}$.

Option C and D are correct.

State whether the following statements are True or False:
Vitamin C is synthesised in skin cells in sunlight. 

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Given statement is false because Vitamin D is synthesised in skin cells in  presence of sunlight.

Vitamin E is also called:

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. Cyanocobalamin

  2. Tocopherol

  3. Lactoflavin

  4. Ascorbic acid

Show answer
Correct Option: B
Explanation:

Vitamin E is also called Tocopherol. It is a reproductive vitamin. It is also called anti-sterility vitamin as its deficiency leads to sterility.

______________ are found in nitrates, phosphates of metals.

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. Inorganic impurities

  2. Organic impurities

  3. Nutrients

  4. Bacteria

Show answer
Correct Option: A
Explanation:

Because these are found in the earth's crust and all the metal salts which are found in earth's crust are called inorganic salts

 Which vitamin is not obtained from plants ?

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. Cyanocobalamine

  2. Thiamine

  3. Pyridoxine

  4. $\alpha-$ tocopherol

Show answer
Correct Option: A
Explanation:

Cyanocobalamine is vitamin $B _{12}$. It is manufactured by bacteria and can only be found naturally in animal products. Its main sources are liver of ox, fish, crab, milk, cheese, etc. Thus, it is not obtained from plants.

For which vitamin liver is not the source ?

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. Vitamin - $B _2$

  2. Vitamin - $B _1$

  3. Vitamin - $B _{12}$

  4. Vitamin - $H$

Show answer
Correct Option: B
Explanation:

Liver is not the source of Vitamin - $B _1$

Compare vitamin (Part I) with its deficiency disease (Part II)

Part I Part II
A. Vitamin - ${B} _{12}$ 1.Sterility
B. Vitamin - ${B} _{6}$ 2. Haemorrhagic condition
C. Vitamin - $E$ 3. Pernicious anaemia
D. Vitamin - $K$ 4. Skin disease
evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. A-1; B-2; C-3; D-4

  2. A-2; B-3; C-4; D-1

  3. A-3; B-4; C-1; D-2

  4. A-3; B-4; C-2; D-1

Show answer
Correct Option: C
Explanation:
Vitamin                                             Deficiency disease
1. Vitamin - ${B} _{12}$       $\to$  Pernicious anaemia
2. Vitamin - ${B} _{6}$       $\to$   Skin disease
3. Vitamin - $E$          $\to$  3. Sterility
4. Vitamin - $K$         $\to$  4. Haemorrhagic condition

Lead pencil contains:

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. graphite

  2. softened lead

  3. galena

  4. anglesite

Show answer
Correct Option: A
Explanation:

Lead pencil contains carbon material called graphite. 


Graphite is mined as flakes or lumps and ground together with clay, then baked into the little sticks encased in wood or inside mechanical pencils.

Our mineral needs are met from 

evs - i constituents of food minerals in our diets types of nutrients nutrients and deficiency

  1. Roughage

  2. Mineral water

  3. Mineral tablets

  4. Food

Show answer
Correct Option: D
Explanation:

Our mineral needs are met from food. Minerals also help your body function. Some minerals, like iodine and fluoride, are only needed in very small quantities. Others, such as calcium, magnesium, and potassium, are needed in larger amounts. As with vitamins, if you eat a varied diet, you will probably get enough of most minerals.

Therefore, the correct answer is option D.