Entry Test MCQ :: Bioenergetics ♦

Entry Test MCQ :: Bioenergetics 21.  Thylakoids in chloroplasts are stacked into A. Grana B. Stroma C. Nucleus D. None of these 22.  In all plants the major sites of phosynthesis are A. Leaves respire and utilize O2 and release CO2. B. Stems C. Roots D. Branches 23.  The dense fluid filled region in the chloroplast is A. Grana B. Stroma C. Thylakoid D. None of these 24.  Chlorophylls are found embedded in the ______ membranes A. Stroma B. Grana C. Thylakoid D. Intergrana 25.  Xanthophylls are ______ pigments A. Yellow B. Red C. Orange D. Green 26.  Chlorophylls mainly absorb ____ wavelengths A. Orange - blue B. Violet - red C. Yellow - orange D. Orange - red. 27.  Deficiency of ________ causes yellowing in plants A. Magnesium B. Iron C. Chlorine D. Oxygen 28.  The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as A. Hydrophilic B. Hydrophobic C. Both of these D. None of these 29.  The most important photosynthetic pigment A. Chlorophyll a B. Chlorophyll b C. Xanthophyll D. Carotenes 30.  Bacteriochlorophylls does not include A. Chlorophyll e B. Chlorophyll d C. Chlorophyll a D. Chlorophyll c 31.  Molecular formula of chlorophyll b is A. C55 H10 O4 N6 Mg B. C55 H70 O6 N5 Mg C. C55 H71 O6 N4 Mg D. C55 H70 O6 N4 Mg 32.  Carotenoids perform protective function in A. Animals B. Plants C. Both of these D. None of these 33.  About _______ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds. A. 10% B. 20% C. 30% D. 40% 34.  Air contains ______ % of CO2 A. 0.02-0.03 B. 0.03-0.04 C. 0.04-0.05 D. 0.05-0.06 35.  PS I has chlorophyll a molecule which absorbs maximum light of _____ nm. A. 600 B. 650 C. 680 D. 700 36.  The percentage of light absorbed by the leaf A. 20% B. 15% C. 10% D. 1% 37.  The first action spectrum was obtained by A. T.W.Englemam B. Malleus C. T.W.Inws D. W.Stapes 38.  First Actions spectrum was obtained by using A. Algae B. Fungi C. Bacteria D. Spirogyra 39.  Of the following, which one causes higher production of food in green plants A. Blue B. Orange C. Red D. Violet 40.  Photosynthesis carried out by terrestrial plants is ____ of total photosynthesis. A. 1-2% B. 5% C. 10% D. 20%