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Biology 1525 MCQs [All-Courses]

Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

Group of living organisms of the same species living in the same place at the same time is called________?

A Community

B Population

C Ecosystem

D Biome

Review Detailed Answer

Correct Answer: Population

The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by________?

A Environmental biologist

B Paleontologist

C Marine biologist

D Social biologist

Review Detailed Answer

Correct Answer: Paleontologist

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called________?

A Environmental biology

B Social biology

C Human biology

D Both b and c

Review Detailed Answer

Correct Answer: Social biology

___________ 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

Review Detailed Answer

Correct Answer: C-H bond

In animals coordination is achieved by means of_________?

A Respiratory system

B Nervous system

C Endocrine system

D Both b and c

Review Detailed Answer

Correct Answer: Both b and c

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

A Population

B Community

C Biome

D Habitat

Review Detailed Answer

Correct Answer: Community

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

Review Detailed Answer

Correct Answer: A molecule

Excessive increase in temperature of medium causes the enzyme molecule to____________?

A Activate

B Unaffected

C Denatured

D None of these

Review Detailed Answer

Correct Answer: Denatured

Resolution power of a compound microscope is___________?

A 2.0 ?m

B 2-4 A

C 24 ?m

D 24 A

Review Detailed Answer

Correct Answer: 2.0 ?m

Extreme change in pH results in______________?

A Change in ionization of amino acids at the active site of the enzyme

B Change in the ionization of the substrate

C Denaturation of the enzyme

D Increase in the reaction rate

Review Detailed Answer

Correct Answer: Denaturation of the enzyme

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Biology 1525 MCQs [All-Courses]

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All Topics 1525

Group of living organisms of the same species living in the same place at the same time is called________?

The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by________?

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called________?

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

In animals coordination is achieved by means of_________?

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

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

Excessive increase in temperature of medium causes the enzyme molecule to____________?

Resolution power of a compound microscope is___________?

Extreme change in pH results in______________?