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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.

The one which is present in all living things is ___________?

A Cell nucleus

B DNA or RNA

C Cell membrane

D Vacuole

Review Detailed Answer

Correct Answer: DNA or RNA

The number of calories required to raise the temperature of 1g of water from 15 to 16?C is called___________?

A Specific Heat of Vaporization

B Specific Heat capacity

C Caloric Heat

D Both A and C

Review Detailed Answer

Correct Answer: Specific Heat capacity

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

Review Detailed Answer

Correct Answer: High specific heat capacity

Carbon atom is_____________?

A Monovalent

B Divalent

C Trivalent

D Tetravalent

Review Detailed Answer

Correct Answer: Tetravalent

Which one is an organic compound_____________?

A CO2

B Water

C Lipids

D HCI

Review Detailed Answer

Correct Answer: Lipids

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

A Proteins

B Carbohydrate

C Lipids

D Water

Review Detailed Answer

Correct Answer: Water

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

Review Detailed Answer

Correct Answer: Biochemistry

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

A Water

B Carbohydrate

C Proteins

D Lipids

Review Detailed Answer

Correct Answer: Water

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

Review Detailed Answer

Correct Answer: Anabolic reactions

Which one is the basic element of organic compounds _________________?

A Oxygen

B Hydrogen

C Sulphur

D Carbon

Review Detailed Answer

Correct Answer: Carbon

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Biology 1525 MCQs [All-Courses]

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All Topics 1525

The one which is present in all living things is ___________?

The number of calories required to raise the temperature of 1g of water from 15 to 16?C is called___________?

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

Carbon atom is_____________?

Which one is an organic compound_____________?

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

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

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

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

Which one is the basic element of organic compounds _________________?