Tag: role of various nutrients

Questions Related to role of various nutrients

In human beings cellulose is digested by

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Enzymes

  2. Symbiotic bacteria

  3. Symbiotic protozoans

  4. None of the above

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Correct Option: D

Calorific values of carbohydrates, proteins and fats are respectively

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. 4.0, 5.6, 9.0

  2. 4.9, 4.3, 7.3

  3. 9.0, 5.6, 4.0

  4. 7.3, 4.3, 4.9

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Correct Option: A

A number of K-40 atoms explode in human body every second. The number is

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. 3800

  2. 38,000

  3. 380,000

  4. 3,800,000.

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Correct Option: B

Triglyceride metabolism to convert fats into carbohydrates is helped by glyoxylate cycle. The organelle responsible for this is found in

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Rice seeds

  2. Caster seeds

  3. Wheat seeds

  4. More than one option is correct

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Correct Option: D
Explanation:

The glyoxalate cycle converts the fats into carbohydrates. This takes place in the organelles which are known as peroxisomes.

the lipids that are present in the cell are used to make energy.
This is found in many plants. This cycle is essential for seed germination.
So, the correct option is 'More than one option is correct'

State whether the following statements are true or false.
Lacteals absorb digested fat in the form of chylomicrons.

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. True

  2. False

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Correct Option: A
Explanation:

A lacteal is a lymphatic capillary that absorbs dietary fats in the villi of the small intestine. Triglycerides are emulsified by bile and hydrolyzed by the enzyme lipase, resulting in a mixture of fatty acids and monoglycerides. These chylomicrons then pass into the lacteals, forming a milky substance known as chyle.

So, the correct option is 'True'.

What is formed from cellulose waste?

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Protein

  2. Calcium

  3. Phosphorous

  4. Nitrates

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Correct Option: A

Cellulose is a protein.

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. True

  2. False

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Correct Option: B
Explanation:

Cellulose is a polysaccharide consisting of linear chain of numerous linked D-glucose units whereas proteins are formed of number of amino acids linked together by peptide linkage.

Main difference between brown fat and white fat is that the cells of brown fat

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Are multicoloured

  2. Have more mitochondria

  3. Are polygonal in shape

  4. All the above

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Correct Option: B

The most abundant lipid in the cell membrane is:-

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Cutin

  2. Phospholipid

  3. Glycolipid

  4. steroid

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Correct Option: B
Explanation:
  • The most abundant lipid present in the cell membrane is phospholipids.
  • The cell membrane is called lipid bilayer as it is a double layer membrane made up of phospholipids. 
  • Phospholipids consist of a polar head group and non-polar fatty acid tails. 
  • The arrangement of these phospholipids in the cell membrane makes the cell membrane permeable.
  • The correct answer is OPTION B.

Quasi-fluid nature of membrane is due to

evs nutritious food minerals and vitamins nutrition and diet role of various nutrients

  1. Phospholipid

  2. Integral protein

  3. Peripheral protein

  4. Sugar moiety

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Correct Option: A
Explanation:

The presence of Quasi-fluid nature of cell membrane is due to Phospholipids such as cholesterol moieties that impart fluidity.

It allows lateral movement of protein moieties throughout the lipid bilayer.
So, the correct option is 'Phospholipid'.