Tag: types of nutrients

Questions Related to types of nutrients

Nails, hair and feathers are made of

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. Albumin

  2. Keratin

  3. Collagen

  4. Elastin

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Correct Option: B
Explanation:

Keratin is a simple fibrous protein, which is made up of only amino acids. It forms external protective structures of animals like hair, feathers, nails, horny layer of skin. Thus, the correct answer is B.

Besides having C, H, O which of the following also contains
N, S, p etc.

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. Protein

  2. Fat

  3. Carbohydrate

  4. Vitamin

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Correct Option: A
Explanation:

Proteins are large molecules of high molecular weight containing C, H, O and nitrogen (N) . The presence of N distinguishes them from carbohydrate and fat. Iron, copper, iodine, sulphur and phosphorus may also be present in a very low proportion. Proteins are found in fish, meat, egg, wheat, bean, ground-nut and pulses.

What is common among amylase, rennin and trypsin?

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. All proteins

  2. Proteolytic enzymes

  3. Produced in stomach

  4. Act at pH lower than 7

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Correct Option: A

Average kilocalories energy needed by a woman is

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. Less than man

  2. More than man

  3. Equal to man

  4. Cannot be predicted

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Correct Option: A

End product of protein digestion is

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. Sugar

  2. Nucleotide

  3. Glucose

  4. Amino acid

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Correct Option: D

Which one matches with protein digestion

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. Lipase, secretin, erepsin, casein

  2. Pepsin, lactase, casein, erepsin

  3. Erepsin, amylase, pepsin, casein

  4. Erepsin, trypsin, pepsin, rennin

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Correct Option: D

The enzymes at location X and Y are respectively

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. $Proteins \overset{'X'}{\rightarrow} Proteoses + Peptoses \overset{'Y'}{\rightarrow} Dipeptides$

  2. Chymotrypsin and pepsin

  3. Pepsin and trypsin

  4. Ptyalin and pepsinTrypsin and dipeptidase

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Correct Option: B


The following is a storage protein

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. Keratin

  2. Collagen

  3. Glutelin

  4. Haemoglobin

Show answer
Correct Option: C
Explanation:

A) Keratin is the protein that is the structural material making up hair, horns, claws, hooves and the outer layer of human skin.

B) Collagen is the building block of the entire body, from the skin to the gut.
C) Glutelin is the storage protein that is found in the species of grass family commonly known as gluten.
D) Haemoglobin is a blood protein that helps in the transport of oxygen.
Hence, the correct answer is 'Glutelin'.

The ratio of $H _1$ and $H _3$ proteins in chromatin is?

evs - i constituents of food dietary sources of proteins types of nutrients calorific value of nutrients

  1. $1:2$

  2. $2:1$

  3. $1:1$

  4. $1:4$

Show answer
Correct Option: B
Explanation:

  • Histones are a family of basic proteins that associate with DNA in the nucleus and help condense it into chromatin, they are alkaline (basic pH) proteins, and their positive charges allow them to associate with DNA.
  • Five types of histones have been identified: H1 (or H5), H2A, H2B, H3 and H4.
  • The core histones are H2A, H2B, H3, and H4, and the linker histones are H1 and H5. These types of histones are smaller, each consisting of 100-150 residues.
  • H1 and its homologous protein H5 are involved in higher-order structures of chromatin consisting about 220 residues.
  • The ratio of H1 and H3 proteins in chromatin is 1:2
So, the correct option is '1:2'

Vitamin A is present in ?

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

  1. fish liver oil

  2. milk

  3. butter

  4. all of these

Show answer
Correct Option: D
Explanation:
Vitamin A is present in liver, milk, green and yellow vegetables and yellow fruits, such as broccoli, spinach, turnip greens, carrots, squash, sweet potatoes, pumpkin, apricots, cod liver oil and in animal sources such as liver, milk, butter, cheese, and whole eggs etc.

Hence, the correct option is D.