Question

FIND THE BEST FIT PAIRS AMONG THE FOLLOWING: GAS FIXED BY RUBISCO IN THE DARK REACTIONS Choose... Choose.. CAM PHOTOSYNTHESIS ULTIMATE GOAL OF THE CALVIN CYCLE FOR C3, C4, CAM WHERE THE DARK REACTIONS TAKE IN CO2 THE USE OF BUNDLE SHEATH CELLS AS AN ADAPTATION TO PHOTORESPIRATION THE USE OF AN ORGANIC ACID TO STORE CO2 DURING THE NIGHT G3P REGENERATED IN THE LAST STEPS OF THE CALVIN CYCLE INTERMEDIATE MOLECULE OF THE CALVIN CYCLE USED AS A STEPPING STONE TO SUGAR SUGAR REDUCING ENDOSYMBIONTIN PLANT CELLS CH2O TO STARCH THE LIGHT REACTIONS RELEASE 02 RuBP CHLOROPLAST CO2 C4 IN CORN Choose..

Answer 1

1. Gas fixed by RUBISCO in the dark reaction is CO2. The enzyme RUBISCO fixes the atmospheric CO2 by catalysing the reaction between carbon dioxide RuBP.

2. Ultimate goal of Calvin cycle for C3,C4,CAM is the light reactions release O2.

3. where the dark reaction take in CO2 is choloroplast.. It occurs in the stromata of the choloroplast to utilise the products of light reaction.

4. The use of bundle sheath cells as an adaptation to photorespiration C4 in corn

5. the use of organic acid to store CO2 during the night is needed in the CAM photosynthesis as it occurs in arid plants and during the day the stomata remain closed to reduce transpiration and opens at night to capture carbon dioxide.

6. Regenerated in the last step of calvin cycle is RuBP. Regeneration of RuBP generates more carbon dioxide fixation.

7. Intermediate molecule of calvin cycle used as stepping stone to sugar is G3P. Itleaves the calvin cycle to produce carbohydrates.

8. Sugar reducing endosymboint in plant cells is CH20 to starch.