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Water participates directly in the light reactions of photosynthesis by?
Water participates directly in the light reactions of photosynthesis by donating electrons to photosystem II during the process of photolysis. These electrons are used to replace the ones lost by chlorophyll when it absorbs light energy, allowing the photosystem to continue absorbing light and generating ATP and NADPH for the Calvin cycle.
Which pigment is directly involved in the light reactions of photosynthesis?
The pigment directly involved is the green pigment called 'chlorophyll' and is found in the chloroplats.
Is light common to both cellular respiration and the light reactions of photosynthesis?
Yes, light is common to both cellular respiration and the light reactions of photosynthesis. In photosynthesis, light energy is used to convert water and carbon dioxide into glucose and oxygen. In cellular respiration, the energy stored in glucose is released through a series of reactions to produce ATP, and light is not directly involved in this process.
Which reactions require oxygen as a raw material 1 light reactions only 2 dark reactions only 3 both light and dark reactions 4 niether light or dark reactions?
The light reactions of photosynthesis require oxygen as a raw material to produce ATP and NADPH. The dark reactions (Calvin cycle) of photosynthesis do not directly require oxygen as a raw material, but they use the ATP and NADPH produced in the light reactions. Both light and dark reactions are involved in photosynthesis, but only the light reactions require oxygen as a raw material.
The initial reactions in photosynthesis are know as the?
The initial reactions in photosynthesis are known as the light-dependent reactions. These reactions occur in the thylakoid membranes of the chloroplast and involve the absorption of light energy to drive the conversion of water into oxygen, ATP, and NADPH.
The two major sets of reactions involved in photosynthesis are?
The two major sets of reactions involved in photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin cycle). In the light-dependent reactions, light energy is used to produce ATP and NADPH, while in the Calvin cycle, ATP and NADPH are used to convert carbon dioxide into glucose.
Do the of photosynthesis ocdark reactions cur only at night?
No, the dark reactions of photosynthesis (Calvin cycle) can occur during the day as well. These reactions do not require light directly, but they depend on the products of the light reactions to proceed. The dark reactions convert CO2 into glucose using ATP and NADPH generated during the light reactions.
True or false The light reactions of photosynthesis can occur only under light conditions and the dark reactions can occur only during the dark hours?
False. The light reactions of photosynthesis require light to convert solar energy into chemical energy, while the dark reactions (Calvin cycle) do not directly rely on light and can occur in both light and dark conditions. However, the dark reactions are indirectly dependent on the products of the light reactions.
How do carbon dioxide molecules enter the light dependent reactions?
Carbon dioxide molecules enter the light-dependent reactions of photosynthesis through tiny pores on the underside of leaves called stomata. Once inside the leaf, carbon dioxide diffuses into the chloroplasts where it participates in the Calvin cycle to produce sugars.
Carbohydrate-synthesizing reactions of photosynthesis directly require?
The carbohydrate-synthesizing reactions of photosynthesis directly require carbon dioxide, water, and sunlight. Through the process of photosynthesis, plants use these raw materials to produce glucose, a simple sugar that serves as the building block for larger carbohydrates such as starch.
What are the dark reactions?
It is photosynthesis where light is not needed. It is a nickname for the Calvin-Benson cycle which is the second main step of photosynthesis. It utilizes the ATP and NADPH produced from the light-reactions as well as carbon dioxide from the air in order to produce glucose.
What are the reactions of the first stage of photosynthesis?
light dependant reactions
