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The light reactions of photosynthesis require light in order to initiate the reactions. The light serves as a source of energy which can excite the electrons in chlorophyll and make them go through the electron transport chain. This chain brings in protons to the thylakoid lumen which can power the ATP synthase and produce ATP by photophosphorylation. The electrons end up reducing NADP+ to NADPH. The ATP and the NADPH produced will be used in the Calvin cycle.
The chlorophyll in the thylakoids are located on the proteins called photosystems. There are two photosystems on the electron transport chain and both require light energy to excite the electrons enough in order to make chlorophyll lose the electrons. Seeing as to how there is no daylight at night, the light reactions cannot take place because they cannot be initiated.
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∙ 10y ago
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∙ 11y agoIt occus during the day because there is sunlight presented. If there is no sunlight, there will be no photosynthesis.
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∙ 14y agoPhotosynthesis requires sunlight to work, so it cannot proceed without the sun being out i.e. only during the daytime.
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∙ 14y agoBeacuse the plants use the energy from the sun to turn into their own energy and food, glucose is involed to, somewhere
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∙ 10y agoBecause they need light energy to photosynthesize which they get during day time.
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∙ 12y agoWiki User
∙ 11y agophotosynthesis needs light to work, without it nothing happens
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∙ 14y agoBecause photosynthesis requires sunlight.
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When does photosynthesis happen night or day?
Most types of photosynthesis (C3 & C4) occur only during the day, however plants that use CAM photosynthesis open their stomata during the night to take in the gases essential for photosynthesis withoug losing the water in the cells. They then use the CO2 to produce glucose throughout the day.
Where do the light reactions happen?
the thylakoid membranes of the chloroplasts
What is the advantage of keeping stomata closed during the day?
as photosynthesis can only take place in day as it uses sun its source of energy ...............
What 2 things do plants give off during photosynthesis?
They convert CO2 to O2 during the day, and the opposite during the night.
What sugar produced during photosynthesis?
The sugar produced during photosynthesis is glucose.
Does photosynthesis happen in the night or day?
day
Does photosynthesis happen during the day?
Yes. For Photosynthesis to occur one of the components required is light (often writien above the arrow of the equation). 6CO2 + 6H2O ==> C6H12O6 + 6O2. Because the sun expells light during the day then photosynthesis can occur during the day. :) Yes. For Photosynthesis to occur one of the components required is light (often writien above the arrow of the equation). 6CO2 + 6H2O ==> C6H12O6 + 6O2. Because the sun expells light during the day then photosynthesis can occur during the day.
What will happen to the amount of carbon dioxide buring nightime?
The carbon dioxide produced during respiration during day time is used up for photosynthesis. However during night, the rate of respiration exceeds the rate of photosynthesis due to unavailability of adequate sunlight.
When does photosynthesis happen night or day?
Most types of photosynthesis (C3 & C4) occur only during the day, however plants that use CAM photosynthesis open their stomata during the night to take in the gases essential for photosynthesis withoug losing the water in the cells. They then use the CO2 to produce glucose throughout the day.
Why does photosynthesis only take place during day?
Because there is only sun during the day
What happen to the sun energy during photosynthesis?
In photosynthesis energy from the sun gets used to make food(sugar)
Why does photosynthesis not continue during the night like cellular respiration does?
plants respire during the day as well the rate of respiration is lower than the rate of photosynthesis in the day
What will happen if there's an under supply of carbon dioxide during photosynthesis?
Rate of photosynthesis would become lower but it is rare on land .
Where do the light reactions happen?
the thylakoid membranes of the chloroplasts
When do green plants carry on respiration?
both photosynthesis and cellular respiration occurs during the day, however, during the night when there is no sunlight only cellular respiration occurs.
When is photosynthesis performed?
It is preferably done during the day, when the sunlight is plentiful.
What does a plant produce during photosynthesis and why does this happen?
Well you need to tell me that why am on this stupid web site
