Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
First Actions spectrum was obtained by using__________?
A: Algae
B: Fungi
C: Bacteria
D: Spirogyra
Spirogyra
Chlorophyll is insoluble in_____________?
A: Carbon tetrachloride
B: Alcohol
C: Organic solvents
D: Water
Water
Of the following, which one causes higher production of food in green plants?
A: Blue
B: Orange
C: Red
D: Violet
Red
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
It is hydrophobic
Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis?
A: 1-2%
B: 5%
C: 10%
D: 20%
10%
Net yield of H2O in Photosynthesis is__________?
A: 1 molecule
B: 6 molecules
C: 3 molecules
D: 0 molecule
0 molecule
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
Compensation point
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
Bacteria
PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ?
A: 600
B: 650
C: 680
D: 700
700