701 Which of the following light is least absorbed by the plants? Biology Medium Full question → A Orange B Red C Blue D Green
702 The percentage of light absorbed by the leaf is ___________? Biology Medium Full question → A 20% B 15% C 10% D 1%
703 Visible light used in photosynthesis ranges from:__________? Biology Medium Full question → A 300 – 700 nm in wavelength B 350 – 750 nm in wavelength C 380 – 750 nm in wavelength D 390 – 790 nm in wavelength.
704 PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ? Biology Medium Full question → A 600 B 650 C 680 D 700
705 Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________? Biology Medium Full question → A Bacteria B Algae C Protenema D Cyanobacteria
706 Air contains __________ % of CO2 ? Biology Medium Full question → A 0.02-0.03 B 0.03-0.04 C 0.04-0.05 D 0.05-0.06
707 The point at which there is no net exchange of gases between leaves and atmosphere is known as_____________? Biology Medium Full question → A Neutral point B Compensation point C Parallel point D Competitive point
708 Net yield of H2O in Photosynthesis is__________? Biology Medium Full question → A 1 molecule B 6 molecules C 3 molecules D 0 molecule
709 About __________ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds? Biology Medium Full question → A 10% B 20% C 30% D 40%
710 Of the following which one is not an energy releasing process? Biology Medium Full question → A Glycolysis B Respiration C Photosynthesis D Kreb’s cycle
711 Carotenoids perform protective function in_____________? Biology Medium Full question → A Animals B Plants C Both of these D None of these
712 The organisms able to use sunlight directly as a source of energy are_____________? Biology Medium Full question → A Plants B Animals C Omnivores D Fungi
713 Quantitative study of energy relationships in biological systems obeys. Biology Medium Full question → A Bioenergetics B Laws of thermodynamics C Laws of thermo chemistry D Laws of chemical energetic
714 Which of the following is a compensation point: Biology Medium Full question → A Leaves respire and utilize O2 and release CO2. B Photosynthesis and respiration occur at same rate. So there is not net exchange of gases between atmosphere and plants. C Rate of photosynthesis increases, so do the O2 production, with a net release of oxygen coupled with the uptake of CO2. D Rate of respiration becomes more than rate of photosynthesis.
715 Molecular formula of chlorophyll b is_____________? Biology Medium Full question → A C55 H10 O4 N6 Mg B C55 H70 O6 N5 Mg C C55 H71 O6 N4 Mg D C55 H70 O6 N4 Mg
716 At which times there is no net gaseous exchange between leaves and the atmosphere. Biology Medium Full question → A Day time. B Night time. C Dawn & Dusk. D Mid night.
717 Bacteriochlorophylls does not include________________? Biology Medium Full question → A Chlorophyll e B Chlorophyll d C Chlorophyll a D Chlorophyll c
718 C6H12O6 + 6O2 ? 6CO2 + 6H20 + ENERGY represents:____________? Biology Medium Full question → A Photosynthesis B Aerobic respiration C Anaerobic respiration D Respiration
719 Photosynthesis is process in which ________ compounds of carbon (CO2) and hydrogen (H2O) are reduced to carbohydrate like (glucose) using light energy. Biology Medium Full question → A Organic B Energy rich C Energy poor D Reduced
720 Which of the following is a chemical link between catabolism and anabolism? Biology Medium Full question → A AMP B ADP C ATP D All of these