M C Q s D r i v e
03079682698
mcqsdrive@gmail.com
About
Contact

Contact Info

03079682698

mcqsdrive@gmail.com

Ad Banner

Biology 1525 MCQs [All-Courses]

thumb

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.

All Topics  1525

Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis?
A 1-2%
B 5%
C 10%
D 20%
Correct Answer: 10%
Which of the following statement about the head of a chlorophyll molecule is incorrect?
A It is a porphyrin ring or tetrapyrrole ring structure
B It is flat, square and light absorbing
C Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen.
D It is hydrophobic
Correct Answer: It is hydrophobic
Of the following, which one causes higher production of food in green plants?
A Blue
B Orange
C Red
D Violet
Correct Answer: Red
Chlorophyll is insoluble in_____________?
A Carbon tetrachloride
B Alcohol
C Organic solvents
D Water
Correct Answer: Water
First Actions spectrum was obtained by using__________?
A Algae
B Fungi
C Bacteria
D Spirogyra
Correct Answer: Spirogyra
Which of the light is mainly absorbed by the plants?
A Orange
B Red
C Green
D Both A and B
Correct Answer: Both A and B
The first action spectrum was obtained by___________?
A T.W.Englemam
B Malleus
C T.W.Inws
D W.Stapes
Correct Answer: T.W.Englemam
Which of the following light is least absorbed by the plants?
A Orange
B Red
C Blue
D Green
Correct Answer: Green
The percentage of light absorbed by the leaf is ___________?
A 20%
B 15%
C 10%
D 1%
Correct Answer: 1%
Visible light used in photosynthesis ranges from:__________?
A 300 – 700 nm in wavelength
B 350 – 750 nm in wavelength
C 380 – 750 nm in wavelength
D 390 – 790 nm in wavelength.
Correct Answer: 380 – 750 nm in wavelength
03079682698
mcqsdrive@gmail.com

Copyright @ 2026 MCQsDrive . All Rights Reserved.