First Actions spectrum was obtained by using__________?
A. Algae
B. Fungi
C. Bacteria
D. Spirogyra
Biology Mcqs
Which of the light is mainly absorbed by the plants?
Which of the light is mainly absorbed by the plants?
A. Orange
B. Red
C. Green
D. Both A and B
The first action spectrum was obtained by___________?
The first action spectrum was obtained by___________?
A. T.W.Englemam
B. Malleus
C. T.W.Inws
D. W.Stapes
Which of the following light is least absorbed by the plants?
Which of the following light is least absorbed by the plants?
A. Orange
B. Red
C. Blue
D. Green
The percentage of light absorbed by the leaf is ___________?
The percentage of light absorbed by the leaf is ___________?
A. 20%
B. 15%
C. 10%
D. 1%
Visible light used in photosynthesis ranges from:__________?
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.
PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ?
PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ?
A. 600
B. 650
C. 680
D. 700
Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________?
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
Air contains __________ % of CO2 ?
Air contains __________ % of CO2 ?
A. 0.02-0.03
B. 0.03-0.04
C. 0.04-0.05
D. 0.05-0.06
The point at which there is no net exchange of gases between leaves and atmosphere is known as_____________?
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