What is the main advantage of non-cyclic photophosphorylation compared to cyclic photophosphorylation?Group of answer choicesIt allowed plants to begin utilising CO2 to create energyIt allowed plants to begin capturing sunlightIt provided plants with reducing power, without needing an external electron donorIt allowed plants to perform photosynthesis
Question
What is the main advantage of non-cyclic photophosphorylation compared to cyclic photophosphorylation?Group of answer choicesIt allowed plants to begin utilising CO2 to create energyIt allowed plants to begin capturing sunlightIt provided plants with reducing power, without needing an external electron donorIt allowed plants to perform photosynthesis
Solution
The main advantage of non-cyclic photophosphorylation compared to cyclic photophosphorylation is that it provides plants with reducing power, without needing an external electron donor. This process involves both Photosystem I and II and results in the production of ATP, NADPH, and oxygen. The ATP and NADPH are then used in the Calvin cycle to fix carbon dioxide into glucose, providing energy for the plant. In contrast, cyclic photophosphorylation only involves Photosystem I and only produces ATP. Therefore, non-cyclic photophosphorylation is more beneficial as it produces both the energy and the reducing power necessary for the plant to create its own food through photosynthesis.
Similar Questions
Many photosynthetic prokaryotes are capable of cyclic electron transport only. Explain why It is likely that such organisms can produce ATP but not reduce CO2?
1.Question 1Which of the following is not an advantage of photosynthesis and the organic chemistry it allows?1 pointThe ability to extract previously stored energy through respirationThe ability to extract energy from chemicals that are available in the environmentThe ability to use the most abundant source of energy easily available on the planetThe ability to make complex hydrocarbons which are capable of building structures.The ability to store energy in insoluble compact forms.The ability to form carbohydrates which can be transported to use energy elsewhere.
Why is it important for plants to photosynthesise for itself and others?
A metabolic pathway that consumes oxygen (O₂) and ATP, releases carbon dioxide (CO₂), and decreases photosynthetic output.Group of answer choicescarbon fixationcyclic electron flowlinear electron flowphotosynthesisCalvin cyclelight reactionsphotorespirationphotophosphorylation
A special photosynthetic pathway (CAM) in plants serves as an adaptation against
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