Podcast
Questions and Answers
Which phase of the Calvin cycle involves the formation of two molecules of 3-phosphoglycerate?
Which phase of the Calvin cycle involves the formation of two molecules of 3-phosphoglycerate?
- Carboxylation (correct)
- Regeneration
- Dark reactions
- Reduction
What is the main purpose of the dark reactions in photosynthesis?
What is the main purpose of the dark reactions in photosynthesis?
- Produce NADPH
- Produce molecular oxygen
- Reduce CO2 to carbohydrate (correct)
- Generate ATP
Which enzyme catalyzes the carboxylation of ribulose-1,5-bisphosphate in the Calvin cycle?
Which enzyme catalyzes the carboxylation of ribulose-1,5-bisphosphate in the Calvin cycle?
- Cytochrome c oxidase
- ATP synthase
- Rubisco (correct)
- NADPH reductase
What is the primary factor that directly regulates the stroma reactions in photosynthesis?
What is the primary factor that directly regulates the stroma reactions in photosynthesis?
How many stages are involved in the Calvin cycle?
How many stages are involved in the Calvin cycle?
What proportion of triose phosphate is typically used for sucrose or starch production in the Calvin cycle?
What proportion of triose phosphate is typically used for sucrose or starch production in the Calvin cycle?
What is the main reason why the forward reaction of the carboxylation of ribulose-1,5-bisphosphate is strongly favored?
What is the main reason why the forward reaction of the carboxylation of ribulose-1,5-bisphosphate is strongly favored?
What enzyme represents up to 40% of the total soluble protein in most leaves?
What enzyme represents up to 40% of the total soluble protein in most leaves?
What regulates the Calvin cycle through light-dependent enzyme activation?
What regulates the Calvin cycle through light-dependent enzyme activation?
What factor determines the balance between the Calvin cycle and the C2 oxidative photosynthetic carbon cycle?
What factor determines the balance between the Calvin cycle and the C2 oxidative photosynthetic carbon cycle?
What is calculated to be about 4 mM within the chloroplast stroma?
What is calculated to be about 4 mM within the chloroplast stroma?
What happens to the concentration of CO2 in a solution in equilibrium with air as the temperature increases?
What happens to the concentration of CO2 in a solution in equilibrium with air as the temperature increases?
How does the concentration ratio of CO2 to O2 change as the temperature rises?
How does the concentration ratio of CO2 to O2 change as the temperature rises?
What effect does increasing temperatures have on photorespiration and photosynthesis?
What effect does increasing temperatures have on photorespiration and photosynthesis?
What is the impact of rubisco's kinetic properties at higher temperatures?
What is the impact of rubisco's kinetic properties at higher temperatures?
Why is it difficult to measure the rate of photorespiration in intact cells?
Why is it difficult to measure the rate of photorespiration in intact cells?
How much carbon entering the C2 oxidative photosynthetic carbon cycle is theoretically released as CO2?
How much carbon entering the C2 oxidative photosynthetic carbon cycle is theoretically released as CO2?
