Practice Pakistan's most useful MCQs for competitive exams

One celled green ptotists are included in___________?

• (A)  Monera
• (B)  Algae
• (C)  Slime molds
• (D)  Plants

Answer

Submitted By :Ali Uppal

Lipids are soluble in which of the following_______________?

• (A)  Water
• (B)  Ether
• (C)  All solvents
• (D)  Not in any of the above

Answer

Submitted By :Ali Uppal

The element in basic structure of proteins which differentiate them from carbohydrates________?

• (A)  C
• (B)  S
• (C)  H
• (D)  N

Answer

Submitted By :Ali Uppal

How many moles of carbon dioxide are produced by complete oxidation of one mole of puruvic acid?

• (A)  1
• (B)  2
• (C)  3
• (D)  6

Answer

Submitted By :Ali Uppal

In Glycin an amino acid R group is replaced by____________?

• (A)  H
• (B)  CH3
• (C)  COOH
• (D)  C = O

Answer

Submitted By :Ali Uppal

Which of the following is the empirical formula of chlorophyll b?

• (A)  C55H70O5N4Mg
• (B)  C55H72O6N4Mg
• (C)  C55H70O6N4Mg
• (D)  C55H72O5N4Mg

Answer

Submitted By :Ali Uppal

Proteins are polymers of___________?

• (A)  Fatty acids
• (B)  Isoprenoid units
• (C)  Amino acids
• (D)  Nucleotides

Answer

Submitted By :Ali Uppal

Following possess bilateral symmetry as larva and radial symmetry as adult:

• (A)  Chordata
• (B)  Hydra
• (C)  Echinodermata
• (D)  Hemichordata

Answer

Submitted By :Ali Uppal

Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?

• (A)  i & ii
• (B)  iii & iv
• (C)  i ii iii & iv
• (D)  iv only

Answer

Submitted By :Ali Uppal

Adult birds normally possess only one functional____________?

• (A)  Ureter
• (B)  Ovary
• (C)  Lung
• (D)  Testis

Answer

Submitted By :Ali Uppal