MCQsDrive | MCQsDrive

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.

PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ?

A 600

B 650

C 680

D 700

Review Detailed Answer

Correct Answer: 700

Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________?

A Bacteria

B Algae

C Protenema

D Cyanobacteria

Review Detailed Answer

Correct Answer: Bacteria

Air contains __________ % of CO2 ?

A 0.02-0.03

B 0.03-0.04

C 0.04-0.05

D 0.05-0.06

Review Detailed Answer

Correct Answer: 0.03-0.04

The point at which there is no net exchange of gases between leaves and atmosphere is known as_____________?

A Neutral point

B Compensation point

C Parallel point

D Competitive point

Review Detailed Answer

Correct Answer: Compensation point

Net yield of H2O in Photosynthesis is__________?

A 1 molecule

B 6 molecules

C 3 molecules

D 0 molecule

Review Detailed Answer

Correct Answer: 0 molecule

About __________ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds?

A 10%

B 20%

C 30%

D 40%

Review Detailed Answer

Correct Answer: 10%

Of the following which one is not an energy releasing process?

A Glycolysis

B Respiration

C Photosynthesis

D Kreb’s cycle

Review Detailed Answer

Correct Answer: Photosynthesis

Carotenoids perform protective function in_____________?

A Animals

B Plants

C Both of these

D None of these

Review Detailed Answer

Correct Answer: Both of these

The organisms able to use sunlight directly as a source of energy are_____________?

A Plants

B Animals

C Omnivores

D Fungi

Review Detailed Answer

Correct Answer: Plants

Quantitative study of energy relationships in biological systems obeys.

A Bioenergetics

B Laws of thermodynamics

C Laws of thermo chemistry

D Laws of chemical energetic

Review Detailed Answer

Correct Answer: Laws of thermodynamics

Showing 731 to 740 of 1525 results

Contact Info

Biology 1525 MCQs [All-Courses]

All Topics 1525

All Topics 1525

PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ?

Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________?

Air contains __________ % of CO2 ?

The point at which there is no net exchange of gases between leaves and atmosphere is known as_____________?

Net yield of H2O in Photosynthesis is__________?

About __________ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds?

Of the following which one is not an energy releasing process?

Carotenoids perform protective function in_____________?

The organisms able to use sunlight directly as a source of energy are_____________?

Quantitative study of energy relationships in biological systems obeys.