1- Histones are rich in?
a) Glycine
b) Lysine
c) Arginine
d) both b &c

2- Cobalt Containing Vitamin is____?
a) VitaminB2
b) Vitamin B3
c) Vitamin B12
d) Vitamin B6

3- A mammalian cell contains 18% of (PPSC 2020)?
a) Proteins
b) Fats
c) Carbohydrates
d) Lipids

4- Which of the following monosaccharides is the majority found in the human body?
a) L-type
b) D-type
c) LD-types
d) None of the above

5- Which of the following is a reducing sugar? (PPSC 2021)?
a) Dihydroxyacetone
b) Erythrulose
c) Glucose
d) All of the above

6- Molisch test is used for _. (PPSC 2017)?
a) Lipids
b) Proteins
c) Carbohydrates
d) Flavoproteins

7- Amino acids are mostly synthesized from?
a) Fatty acids
b) Mineral salts
c) 𝜶-­ketoglutaric acid
d) volatile acids

8- Absorbance at 280nm is exhibited by proteins is due to (PPSC 2017)?
a) Aliphatic amino acids
b) Aromatic amino acids
c) All amino acids
d) None of these

9- The degree of unsaturation of lipids can be measured as (PPSC 2021)?
a) Iodine number
b) Saponification number
c) Reichert Meissel number
d) Polenske number

10- Nucleic acids combine with which biomolecule?
a) Fats
b) Lipids
c) Carbohydrates
d) Proteins

11- The compound does not contain the phosphate group, is?
a) Nucleotide
b) Nucleoside
c) Both A & B
d) None of these

12- Which of the following is purine nucleotide?
a) Adenine
b) Uracil
c) Thymine
d) All of the above

13- Phosphate group is attached to which carbon of pentose sugar?
a) C-1
b) C-2
c) C-4
d) C-5

14- Which ratio is constant for DNA?
a) A + G / T + C
b) A + T / G + C
c) A + C / U + G
d) A + U / G + C