Practice Pakistan's most useful MCQs for competitive exams

Intake of liquid material by cell membrane is called___________?

• (A)  Endocytosis
• (B)  Exocytosis
• (C)  Phagocytosis
• (D)  Pinocytosis

Answer

Submitted By :Ali Uppal

Breakdown of large molecules into smaller ones utilizing water molecules is_________?

• (A)  Hydration
• (B)  Hydrolysis
• (C)  Dehydration synthesis
• (D)  Electrolysis

Answer

Submitted By :Ali Uppal

Out of total organisms on earth, _____________are vascular plants?

• (A)  53.10%
• (B)  19.90%
• (C)  17.60%
• (D)  9.40%

Answer

Submitted By :Ali Uppal

Oxygen accounts for __________ percent of totals human body mass?

• (A)  65%
• (B)  18%
• (C)  10%
• (D)  3%

Answer

Submitted By :Ali Uppal

Initial pH of food vacuole during digestion in amoeba is____________?

• (A)  5.3
• (B)  5.6
• (C)  7.3
• (D)  7.6

Answer

Submitted By :Ali Uppal

If bile pigments are prevented from leaving digestive tract, then they cause_____________?

• (A)  Hepatitis
• (B)  Jaundice
• (C)  Gall stones
• (D)  Blockage

Answer

Submitted By :Ali Uppal

Double fertilization is feature of____________?

• (A)  Ferns
• (B)  Whisk ferns
• (C)  Gymnosperms
• (D)  Angiosperms

Answer

Submitted By :Ali Uppal

Alternation of generations is absent in___________?

• (A)  Hydration
• (B)  Obelia
• (C)  Jelly fish
• (D)  Physalia

Answer

Submitted By :Ali Uppal

The single healthy megaspore retained within the megasporangium germinates to form an egg containing female gaemtophyte called______________?

• (A)  Ovule
• (B)  Seed
• (C)  Fruit
• (D)  Embroyo sac

Answer

Submitted By :Ali Uppal

Pollen grains in pinus have __________ for dispersal through wind?

• (A)  Flagella
• (B)  Cilia
• (C)  Wings
• (D)  Feathers

Answer

Submitted By :Ali Uppal