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Biomolecules (Biology) · Question 36

NEET (UG) 2021MCQEasy📈 Topic in 38% papers+4−1
1

Following are the statements with reference to 'lipids'. Choose the correct answer from the options given below.

  1. B and E only
  2. A and B only
  3. C and D only
  4. B and C only

Answer

(4) B and C only

Solution

A: Incorrect – fatty acids without double bonds (only single bonds) are saturated; those with one or more C=C double bonds are unsaturated.

B: Correct – lecithin is a phospholipid (phosphorylated lipid found in cell membranes).

C: Correct – glycerol is trihydroxy propane.

D: Incorrect – as per NCERT, palmitic acid has 16 carbon atoms including the carboxyl carbon.

E: Incorrect – arachidonic acid has 20 carbon atoms including the carboxyl carbon.

∴ Correct: B and C only.

Answer: (4)

NEET (UG) 2021

Keep practising — Biomolecules (Biology)

2

Identify the substances having glycosidic bond and peptide bond, respectively in their structure

  1. Glycerol, trypsin
  2. Cellulose, lecithin
  3. Inulin, insulin
  4. Chitin, cholesterol
NEET (UG) 2020
3

Which one of the following is the most abundant protein in the animals?

  1. Collagen
  2. Lectin
  3. Insulin
  4. Haemoglobin
NEET (UG) 2020
4

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)
NEET (UG) 2020
5

Identify the basic amino acid from the following

  1. Valine
  2. Lysine
  3. Tyrosine
  4. Glutamic Acid
NEET (UG) 2020
6

Concanavalin A is:

  1. a lectin
  2. a pigment
  3. an alkaloid
  4. an essential oil
NEET (UG) 2019
7

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
NEET (UG) 2019
8

The two functional groups characteristic of sugars are

  1. carbonyl and methyl
  2. carbonyl and hydroxyl
  3. hydroxyl and methyl
  4. carbonyl and phosphate
NEET 2018
9

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
NEET 2017
10

Which of the following are not polymeric?

  1. Proteins
  2. Polysaccharides
  3. Lipids
  4. Nucleic acids
NEET 2017
11

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.
NEET 2016 (Phase 1)

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