Biological Molecules — Biology MCQs (Class 11)
Free chapter-wise Biology MCQs with answers for MDCAT, FSc and entry tests.
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#17 Peptide bond is formed between:
A) Hydrogen groups of adjacent amino acids
B) Functional group of the amino acids
C) Carboxyl group and Amino group
D) Functional group & hydrogen group of adjacent amino acid
#18 The enormous diversity of protein molecules is mostly due to the diversity of:
A) Amino groups on the amino acids
B) R groups on the amino acids
C) Peptide bonds
D) Amino acids sequences within protein molecules
#19 In saturated fatty acids more hydrogen are not accommodated because of:
A) Presence of single bonds between carbon atoms
B) Presence of Double bonds between carbon atoms
C) Presence of triple bonds between carbon atoms
D) Absence of bond between carbon atoms
#20 Which of the following is composed of lipids?
A) Some hormones
B) Enzymes
C) Skin tendons
D) Insulin
#21 All cell membranes are composed of:
A) Proteins
B) Lipids
C) Lipo protein
D) Cellulose
#22 How many atoms of oxygen in R.N.A are greater than D.N.A?
A) One
B) Two
C) Three
D) Four
#23 All of the following are mono nucleotides EXCEPT:
A) A.M.P
B) A.T.P
C) A.D.P.
D) F.A.D.
#24 Which of the following base is not present in RNA?
A) Thymine
B) Adonine
C) Guanine
D) Cytosine
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