Practice Pakistan's most useful MCQs for competitive exams

Ribose is an example of___________?

• (A)  Trioses
• (B)  Tetroses
• (C)  Pentose
• (D)  Hexose

Answer

Submitted By :Ali Uppal

Primary structure of proteins determines__________?

• (A)  Number of polypeptide chains involved
• (B)  Bending of polypeptide chains
• (C)  Amino acid sequence
• (D)  Coiling of polypeptide chains

Answer

Submitted By :Ali Uppal

A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called________________?

• (A)  Monosaccharide
• (B)  Fatty acid
• (C)  Neutral lipid
• (D)  Nucleic acid

Answer

Submitted By :Ali Uppal

__________ is example of pure form of cellulose?

• (A)  Silk
• (B)  Wool
• (C)  Cotton
• (D)  Paper

Answer

Submitted By :Ali Uppal

The cell wall of oomycetes is chiefly composed of___________?

• (A)  Chitin
• (B)  Cellulose
• (C)  Lignin
• (D)  Proteins

Answer

Submitted By :Ali Uppal

The one which can tolerate highest external osmotic pressure is __________?

• (A)  Algae
• (B)  Amoeba
• (C)  Fungi
• (D)  Bacteria

Answer

Submitted By :Ali Uppal

Which one is abundant in animals___________?

• (A)  Starch
• (B)  Glycogen
• (C)  Cellulose
• (D)  None of these

Answer

Submitted By :Ali Uppal

Mycoplasmas have been included in bacteria because:

• (A)  Do not have a cell wall
• (B)  Are heterotrophic
• (C)  Lack membrane bounded organelles
• (D)  Reproduce by binary fission

Answer

Submitted By :Ali Uppal

Which one gives blue colour with iodine_______________?

• (A)  Starch
• (B)  Glycogen
• (C)  Cellulose
• (D)  Polysaccharide

Answer

Submitted By :Ali Uppal

Which of the following polysaccharide is called animal starch_________________?

• (A)  Starch
• (B)  Glycogen
• (C)  Cellulose
• (D)  None of these

Answer

Submitted By :Ali Uppal