Biology Mcqs

The property of water due to which it works as a temperature stabilizer and hence protect living organisms from sudden thermal changes is_______________?

• (A)  High specific heat of vaporization
• (B)  High specific heat capacity
• (C)  Its Dipole nature
• (D)  Its liquid state

Answer

Submitted By :Ali Uppal

Carbon atom is_____________?

• (A)  Monovalent
• (B)  Divalent
• (C)  Trivalent
• (D)  Tetravalent

Answer

Submitted By :Ali Uppal

Which one is an organic compound_____________?

• (A)  CO2
• (B)  Water
• (C)  Lipids
• (D)  HCI

Answer

Submitted By :Ali Uppal

Which chemical component has the greatest contribution in the total mammalian cell weight__________?

• (A)  Proteins
• (B)  Carbohydrate
• (C)  Lipids
• (D)  Water

Answer

Submitted By :Ali Uppal

The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called_________________?

• (A)  Chemistry
• (B)  Biochemistry
• (C)  Molocular biology
• (D)  Both a and b

Answer

Submitted By :Ali Uppal

Which chemical component has the same % in bacterial as well as the mammalian cell_____________?

• (A)  Water
• (B)  Carbohydrate
• (C)  Proteins
• (D)  Lipids

Answer

Submitted By :Ali Uppal

Reactions in which simple substances are combined to form complex substances are called_____________?

• (A)  Metabolic reactions
• (B)  Catabolic reactions
• (C)  Anabolic reactions
• (D)  None of these

Answer

Submitted By :Ali Uppal

Variety among amino acids is produced due to_____________?

• (A)  NH2 group
• (B)  COOH group
• (C)  R group
• (D)  All of these

Answer

Submitted By :Ali Uppal

Which one are most complex sugar_____________?

• (A)  Monosaccharides
• (B)  Oligosaccharides
• (C)  Polysaccharides
• (D)  None of these

Answer

Submitted By :Ali Uppal

Cn(H2O)n. is a general formula of_____________?

• (A)  Monosaccharides
• (B)  Oligosaccharides
• (C)  Ploysacharides
• (D)  Carbohydrates

Answer

Submitted By :Ali Uppal