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Biomolecules (Biology)

NEET (UG) 2020MatchingMedium📈 Topic in 38% papers+4−1
Ques. 1NEET (UG) 2020

Match the following Choose the correct option from the following

  1. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
  2. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
  3. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
  4. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

Answer

(3) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

Solution

(a) Malonate closely resembles succinate and competitively inhibits succinic dehydrogenase: (a)-(ii).

(b) Collagen is a protein, so it possesses peptide bonds: (b)-(iv).

(c) Chitin, a complex polysaccharide, forms the cell wall of fungi: (c)-(iii).

(d) As per NCERT, ricin (a toxin, like abrin) is a secondary metabolite: (d)-(i).

∴ (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

Answer: (3)

Keep practising — Biomolecules (Biology)

Ques. 2NEET (UG) 2020

Identify the basic amino acid from the following

  1. Valine
  2. Lysine
  3. Tyrosine
  4. Glutamic Acid
Ques. 3NEET (UG) 2019

Concanavalin A is:

  1. a lectin
  2. a pigment
  3. an alkaloid
  4. an essential oil
Ques. 4NEET (UG) 2019

Consider the following statements: Select the correct option

  1. Both A and B are false
  2. A is false but B is true
  3. Both A and B are true
  4. A is true but B is false
Ques. 5NEET 2018

The two functional groups characteristic of sugars are

  1. carbonyl and methyl
  2. carbonyl and hydroxyl
  3. hydroxyl and methyl
  4. carbonyl and phosphate
Ques. 6NEET 2017

Which of the following statements is correct with reference to enzymes?

  1. Holoenzyme = Apoenzyme + Coenzyme
  2. Coenzyme = Apoenzyme + Holoenzyme
  3. Holoenzyme = Coenzyme + Co-factor
  4. Apoenzyme = Holoenzyme + Coenzyme
Ques. 7NEET 2017

Which of the following are not polymeric?

  1. Proteins
  2. Polysaccharides
  3. Lipids
  4. Nucleic acids
Ques. 8NEET 2016 (Phase 1)

A typical fat molecule is made up of

  1. one glycerol and one fatty acid molecule
  2. three glycerol and three fatty acid molecules
  3. three glycerol molecules and one fatty acid molecule
  4. one glycerol and three fatty acid molecules.
Ques. 9NEET 2016 (Phase 1)

Which one of the following statements is wrong?

  1. Uracil is a pyrimidine.
  2. Glycine is a sulphur containing amino acid.
  3. Sucrose is a disaccharide.
  4. Cellulose is a polysaccharide.
Ques. 10NEET 2016 (Phase 2)

A non-proteinaceous enzyme is

  1. lysozyme
  2. ribozyme
  3. ligase
  4. deoxyribonuclease.
Ques. 11NEET 2016 (Phase 2)

Which of the following is the least likely to be involved in establishing the three-dimensional folding of most proteins?

  1. Hydrogen bonds
  2. Electrostatic interaction
  3. Hydrophobic interaction
  4. Ester bonds

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