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Why is the Dark Reaction sometimes called Light Independent Reaction?
Because the dark reactions are CO2 assimilation's and do not need light energy. They use the ATP and NADPH created from the light reactions to convert CO2 to carbohydrates, so this can happen in the "dark" as long as the light reactions already happened.
What is the Calvin cyle?
It is the second step of photosynthesis. It does not need light
Why can the dark reaction occur in day light hours?
The dark reaction, also known as the Calvin cycle, can occur during daylight hours because it does not directly require light energy to proceed. It uses the ATP and NADPH generated during the light-dependent reactions to fix carbon dioxide and produce sugars. So even though it doesn't rely on light for its energy source, it still benefits from the products of the light-dependent reactions that happen during the day.
Is Calvin cycle light dependent or light independent?
The Calvin cycle is a light-independent process because it does not directly require light energy to function. It can occur in the absence of light, utilizing the products of the light-dependent reactions of photosynthesis to convert carbon dioxide into glucose.
Why do old biology textbooks called the carbon fixation reaction of photosynthesis the 'dark reaction'?
Though the reaction is not triggered by light, it does need the products produced in the "light-dependent " process.
What is the two sets of reactions that need to occur in order for photosynthesis to take pace?
light dependent and light independent reactions
Compare and contrast light dependent and light independent reactions of photosynthesis.?
Light-dependent reactions occur in the thylakoid membrane and require light energy to produce ATP and NADPH. Light-independent reactions (Calvin Cycle) occur in the stroma and use ATP and NADPH to convert CO2 into glucose. Both processes are essential for photosynthesis and occur in chloroplasts.
What happens in an endothermic reaction?
An endothermic reaction need heat to occur.
Why is the second stage of photosynthesis called light independent reaction?
The light-independent reactions are sometimes referred to as the dark reactions, though that term may be misleading as they do not actually require darkness to proceed. The term "light-independent" is used to emphasize that the reactions occur regardless of the amount of light present as long as the proper substrate compounds are available. Even this term can be criticized, however, as the availability of substrates in plants depends on photosynthesis, so the reactions cannot be said to be entirely "light-independent." Furthermore, the term "dark reactions" may be more accurate in CAM (Crassulacean acid metabolism) plants, which only take up CO2, which is necessary for the reactions to proceed, at night.http://en.wikipedia.org/wiki/Light-independent_reaction
What are light independent and dependent reactions?
Light dependent reactions are reactions the capture light energy and convert it into chemical energy(ATP). It occur in the chloroplast of plant cells Light independent reactions are reactions capture energy and use it to produce food . It does not need sunlight
Explain why the light-independent reactions are called such as?
The light-independent reactions do not directly require light energy to occur; they can proceed in the absence of light. These reactions, also known as the Calvin cycle, are responsible for the conversion of carbon dioxide into glucose and other organic molecules using ATP and NADPH produced during the light-dependent reactions.
Difference between light dependent reactions and light independent reactions in photosynthesis?
I'm assuming you're talking about photosynthesis. The main difference can be seen in the terms. Light dependent need light to react, light independent do not. In the light reactions the photon of light hits the chlorophyll which excites an electron that goes into the electron transport chain. This electron comes from water being split into H+ ions and oxygent gas. A small amount of ATP is produced and NADPH is produced. In the dark reaction, called the Calvin cycle, the ATP and NADPH produced by the light reaction is used to combine RUBP with CO2 to make glucose.
