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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.
What else can I help you with?
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
How does the process of cactus photosynthesis differ from that of other plants?
Cacti have a unique photosynthesis process compared to other plants because they perform a type of photosynthesis called Crassulacean Acid Metabolism (CAM). This allows cacti to open their stomata at night to reduce water loss and store carbon dioxide, which is then used during the day for photosynthesis. In contrast, most other plants perform photosynthesis during the day through a process called C3 photosynthesis, where stomata are open during the day.
When do plants absorb carbon dioxide for photosynthesis?
Plants absorb carbon dioxide for photosynthesis during the day when sunlight is available for the process.
What gas is released when plants respire throughout the day?
Oxygen, and it's known as "Photosynthesis" process But during the night, plants release carbon dioxide like a normal human
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.
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
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.
When is photosynthesis performed?
It is preferably done during the day, when the sunlight is plentiful.
How does the process of cactus photosynthesis differ from that of other plants?
Cacti have a unique photosynthesis process compared to other plants because they perform a type of photosynthesis called Crassulacean Acid Metabolism (CAM). This allows cacti to open their stomata at night to reduce water loss and store carbon dioxide, which is then used during the day for photosynthesis. In contrast, most other plants perform photosynthesis during the day through a process called C3 photosynthesis, where stomata are open during the day.
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.
Where do the light reactions happen?
the thylakoid membranes of the chloroplasts
Why is Rate of photosynthesis is more during a bright sunny than a cloudy day?
During a bright sunny day, there is more sunlight available for photosynthesis, which is an essential component of the process. The more sunlight there is, the more energy plants can absorb to drive photosynthesis. However, during a cloudy day, less sunlight reaches the plants, which can lower the rate of photosynthesis.
