The source of CO2 during calvin cycle in C4 plant is

Related MCQs

• A. The atmospheric concentration of CO2 at which photosynthesis just compensation point. R. The CO2 compensation point is reached when the amount of CO2 uptake is less than that generated through respiration because the level of CO2 in the atmosphere is more than that required for achieving CO2 compensation point.
• Calvin cycle utilize for fixation of 3 molecules of CO2
• The Calvin cycle proceeds in three stages 1. reduction, during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH 2. regeneration, during which the carbon dioxide acceptor ribulose – 1, 5 – biphosphate is formed 3. carboxylation, during which carbon dioxide combines with ribulose – 1, 5 - biophosphate
• In sugarcane plant CO2 is fixed in malic acid, in which the enzyme that fixes CO2 is
• In the calvin cycle, the assimilatory power is used during
• A. Under conditions of high light intensity and limited CO2 supply, photorespiration has a useful role in protecting the plants from photo-oxidative damage. R. If enough CO2 is not available to utilize light energy for carboxylation to proceed, the excess energy may not cause damage to plants.
• When amount of CO2 taken from atmosphere (in photosynthesis) becomes equal to the amount of CO2 released in atmosphere (in respiration), this is called
• Calvin cycle represents one of the following phenomenon.
• A. Six turns of Calvin-cycle result in the production of one molecule of glucose (C6H12O6) R. Three molecules of ribulose 1, 5 – bisphosphate (Ru BP) react with three molecules of carbon dioxide to produce six carbon intermediates.
• Choose the correct combinations of labelling the carbohydrate molecule involved in the Calvin cycle.