Practice Pakistan's most useful MCQs for competitive exams

On average there are _______ or more thylakoid per granum?

• (A)  60
• (B)  50
• (C)  40
• (D)  70

Answer

Submitted By :Ali Uppal

7 Secretions are products formed within cell on__________?

• (A)  E.R
• (B)  Golgi bodies
• (C)  Ribosome
• (D)  Nucleus

Answer

Submitted By :Ali Uppal

In 1831, the presence of nucleus in the cells was reported by__________?

• (A)  Robert Koch
• (B)  Robert Hooke
• (C)  Robert Mug Abe
• (D)  Robert Brown

Answer

Submitted By :Ali Uppal

Polysome is formed during __________ process?

• (A)  Transcription
• (B)  Secretion
• (C)  Translation
• (D)  Division

Answer

Submitted By :Ali Uppal

___________ is the potential surce of chemical energy for cellular activities?

• (A)  C-H bond
• (B)  C-O bond
• (C)  C-N bond
• (D)  P-O-C bond

Answer

Submitted By :Ali Uppal

In animals coordination is achieved by means of_________?

• (A)  Respiratory system
• (B)  Nervous system
• (C)  Endocrine system
• (D)  Both b and c

Answer

Submitted By :Ali Uppal

Different species of plants and animals living in the same habitat is called ___________?

• (A)  Population
• (B)  Community
• (C)  Biome
• (D)  Habitat

Answer

Submitted By :Ali Uppal

The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called__________?

• (A)  An organ
• (B)  A molecule
• (C)  Tissue
• (D)  Both a and c

Answer

Submitted By :Ali Uppal

Percentage of water in brain cells is_______?

• (A)  20%
• (B)  65%
• (C)  85%
• (D)  89%

Answer

Submitted By :Ali Uppal

The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by________?

• (A)  Molecular biologists
• (B)  Microbiologists
• (C)  Freshwater biologists
• (D)  Social biologist

Answer

Submitted By :Ali Uppal