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Biomolecules (Biology) · Question 35

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

Identify the incorrect pair

  1. Drugs - Ricin
  2. Alkaloids - Codeine
  3. Toxin - Abrin
  4. Lectins - Concanavalin A

Answer

(1) Drugs - Ricin

Solution

As per NCERT (table of secondary metabolites):

Toxins – Abrin, Ricin

Alkaloids – Morphine, Codeine

Lectins – Concanavalin A

Drugs – Vinblastin, Curcumin

∵ Ricin is a toxin, not a drug, the pair "Drugs - Ricin" is incorrect.

Answer: (1)

NEET (UG) 2021

Keep practising — Biomolecules (Biology)

2

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
NEET (UG) 2021
3

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
4

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

  1. Collagen
  2. Lectin
  3. Insulin
  4. Haemoglobin
NEET (UG) 2020
5

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
6

Identify the basic amino acid from the following

  1. Valine
  2. Lysine
  3. Tyrosine
  4. Glutamic Acid
NEET (UG) 2020
7

Concanavalin A is:

  1. a lectin
  2. a pigment
  3. an alkaloid
  4. an essential oil
NEET (UG) 2019
8

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
9

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
10

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
11

Which of the following are not polymeric?

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

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