NCERT Biomolecules objective questions NTA NEET,Biology solutions,mcq

Biomolecules Mock Exam-2

Question No:1

Bond formed between two adjacent monosaccharide is

[A] peptide bond
[B] ester bond
[C] glycosidic bond
[D] ionic bond

Question No:2

Blood concentration of glucose in normal healthy individual is

[A] 2-3 mM
[B] 4.5-5 mM
[C] 6-7 mM
[D] 1 Mm

Question No:3

Which of the following is a stored form of energy in plant?

[A] starch
[B] cellulose
[C] glycogen
[D] chitin

Question No:4

Lipids are

[A] compounds of carbon, hydrogen and oxygen
[B] compounds of glycerol and fatty acid
[C] insoluble in water
[D] all

Question No:5

Lipids may be

[A] fatty acid
[B] glycerol
[C] compound respectively of both
[D] all

Question No:6

What is the number of carbon atoms which palmitic and arachidonic acid contain (including carboxyl carbon)?

[A] 16,19
[B] 15,19
[C] 16,20
[D] 18,20

Question No:7

Fats or oils are

[A] monoglycerides
[B] diglycerides
[C] triglycerides
[D] any of the above

Question No:8

Which of following is an example of phospholipid?

[A] Palmitic acid
[B] Arachidonic acid
[C] Lecithin
[D] Glycerol

Question No:9

Which of the following is correct about lipids?

[A] On basis on melting points they are divided into fats and oils
[B] Neural tissues are made up of simple lipids only
[C] Phospholipids are never form part of cell membrane
[D] Lipids are strictly macromolecule

Question No:10

Which of the following is correct about amino acid?

[A] It is a compound containing amino and acidic group (-COOH)
[B] It is a substitute and is methane
[C] It is based on nature of ‘R’ group they are of many types
[D] All

Question No:11

How many amino-acids are used to form protein?

[A] 18
[B] 20
[C] 21
[D] 22

Question No:12

Chemical and Physical property of amino acid is based on

[A] -NH2 group
[B] -COOH group
[C] -R group
[D] All

Question No:13

Match the column:
Column I— Column II
A. Acidic – 1) Valine
B. Basic — 2) Lysine
C. Neural – 3) Glutamic acid
D. Aromatic – 4) Tyrosine, phenylalanine, tryptophan

[A] A-3.B-2, C-1,D-4
[B] A-2, B-3, C-4, D-1
[C] A-4, B-1, C-2, D-3
[D] A-1, B-2, C-2, D-4

Question No:14

Protein is

[A] homopolymer
[B] heteropolymer
[C] polypeptide
[D] both (b) and (c)

Question No:15

Essential amino acids are those which are

[A] not synthesized by our body
[B] not required by our body
[C] synthesized by our body
[D] only used to form proteins

Question No:16

The most abundant protein in animal world is

[A] RuB is CO
[B] collagen
[C] elastin
[D] albumin

Question No:17

The most abundant protein in whole biosphere is

[A] RuB is CO
[B] collagen
[C] elastin
[D] albumin

Question No:18

Protein acts as a

[A] enzyme
[B] receptor
[C] antibody
[D] all

Question No:19

Match the column:
Column I Column II
A. Collagen — Hormone
B. Trypsin – Enzyme
C. Insulin — Fight Infectious agent
D. Receptor – Enable glucose transport into cells
E. GLUT-4 — Sensory reception (smell, taste hormone)
F. Antibody – Intercellular ground substance

[A] A-3,B-2,C4,D-1,E-6,F-5
[B] A-6, B-2, C-1, D-5, E-4, F-3
[C] A-1, B4,C-2,D-5,E-3,F-6
[D] A-2,B-4, C-5, D-3, E-1, F-6

Question No:20

Which one is correct about macromolecular fraction is comprised of

[A] poly nucleotides
[B] poly peptides
[C] polysaccharides
[D] all