Class XI

 Oxygen (O3) released during photosynthesis comes from
  1. chlorophyll
  2. photolysis
  3. enzyme-controlled reactions
  4. water
The response of different organism to environment rhythms of light and darkness is called
  1. Phototaxis
  2. Vernalization
  3. Phototropism
  4. Photoperiodism
The excitation of electrons,finally down-hill to NADP+NADP+ causing it to be reduced to NADPH2+NADPH2+ is called as
  1. Z scheme
  2. Cytochromes
  3. ATP
  4. Redox potential
PGA as the first CO2CO2 fixation product was discovered in photosynthesis of
  1. Algae
  2. Bryophytes
  3. Angiosperm
  4. Gymnosperm
Dark fixation of CO2CO2 in CAM plants is called ocification because it produces
  1. Tartaric acid
  2. Malic acid
  3. Oxaloacetic acid
  4. Formic acid
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