Question

2 Biological Molecules
Exercise
5
MCQs
Select the correct answer
An amino acid molecule has the following structure
H
NH, -C-COOH
(ii)
(iv)
R
Which two of the groups combine to form a peptide link between two amino acids?
(A) 1 and 2
(B) 1 and 3
(C) 2 and 3
(D) 2 and 4
Which class of molecule is the major component of cell membrane
(A) phospholipid
(B) cellulose
(C) wax
(D) triglyceride
Glycerol is the backbone molecule for
(A) ATP
(B) terpenes
(C) neutral lipids
(D) steroids
A fatty acid is unsaturated if it
(A) contains hydrogen
(B) contains double bonds
(C) contains an acid group
(D) all of them
In RNA the nitrogen base that takes the place of thymine is
(A) adenine
(B) cytosine
(C) guanine
(D) uracil
The ending-ose means a substance is a
(A) sugar
(B) lipid
(C) protein
(D) nucleic acid
Glycolipids and lipoprotein are important components of
(A) cellular membrane
(B) cell wall
(C) both of them
(D) none of them
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Answer 1

Explanation:

Answer:

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