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The Dark Reactions (a.k.a. The Calvin Cycle) can occur without the light. Sometimes they are also called the Light Independent Reactions for that very reason. Light is required during the light reactions because the energy from light (photon) is required to excite electrons. No such energy source is required for the Calvin Cycle because the energy has already been converted into a chemical form (ATP and NADPH) during the light reactions. The energy from ATP and NADPH is used to "drive" the Calvin Cycle (the accumulation of Carbon atoms from Carbon Dioxide). Carbon Dioxide and Rubulose Biphosphate (RuBp) are combined using the enzyme rubisco. The energy from ATP and NADPH is added (in several steps). The final molecule, gyceraldehye-3-phosphate (G3P) is produced. There is a fairly common misconception that glucose is the final product of the Calvin Cycle; but, it is actually G3P. Notice that none of these reactions (those of the Calvin Cycle) required light.
And don't forget, plants don't need light for cellular respiration either.
What else can I help you with?
Can photosynthesis still take place even there is no sunlight but there is electric light?
Yes, photosynthesis can still take place with electric light as long as the light provides the necessary energy in the form of photons for the process to occur. However, sunlight provides a broader spectrum of light that is more efficient for photosynthesis compared to most electric lights.
What is the structure that allow photosynthesis to occur?
The structure that photosynthesis takes place in is called a chloroplast in plants. However, not all photosynthesis takes place in the chloroplast. Photosynthetic bacteria for example have no chloroplast, and yet they photosynthesize. Another possible answer to this could be chlorophyll, but again there are differences; different groups of organisms use different types of chlorophyll to facilitate photosynthesis. Thus, I think that the only true answer to this question is that the Sun is THE structure that allows photosynthesis to occur. However, in modern times even this is technically incorrect, as photosynthesis can be stimulated by any suitable light source giving off light at the proper wavelength, for example; a lightbulb. So perhaps the only correct answer is that light itself is what allows photosynthesis to occur.
What is the process called by which an autotroph obtains energy from inorganic compounds instead of light?
The process is called chemosynthesis. Autotrophs use energy from chemical reactions to produce their own food, instead of relying on sunlight like in photosynthesis. This process is common in deep-sea ecosystems where there is no sunlight available.
How does photosynthesis occur in prokaryotic cells?
Prokaryotes do not perform photosynthesis. They are organisms that lack a cell nucleus, they don't even have chloroplast, to perform it. Plants, which are eukaryotes, photosynthesis takes place in the chloroplast.
How does cloudy weather affect photosynthesis?
Definitely...but to a lesser extent, it would get very little light but yes it would get some Plants gather sunlight on cloudy days as well as sunny days!
Which process of photosynthesis can occur even when theres no light?
That is the Dark cycle. Also called Calvin cycle
Which part of photosynthesis can occur even when there is no light?
That is the dark reaction. It needs no light
Why does only sunlight and not other light can be used for performing photosynthesis?
Sunlight is preferred for photosynthesis because it provides a full spectrum of light wavelengths necessary for plant pigments to absorb and initiate the process. Other light sources may not provide the specific wavelengths needed for efficient energy conversion. Additionally, sunlight is readily available and abundant, making it the primary source of energy for photosynthesis.
Can photosynthesis still take place even there is no sunlight but there is electric light?
Yes, photosynthesis can still take place with electric light as long as the light provides the necessary energy in the form of photons for the process to occur. However, sunlight provides a broader spectrum of light that is more efficient for photosynthesis compared to most electric lights.
Even though plants carry on photosynthesis plant cells still use their mitochondria for oxidation of pyruvate When and where will this occur?
Plant cells use their mitochondria for the oxidation of pyruvate during cellular respiration, which occurs in the presence of oxygen. This process takes place in the mitochondria of plant cells to generate ATP for energy production, even though photosynthesis is the main process for creating energy in plants.
What is the structure that allow photosynthesis to occur?
The structure that photosynthesis takes place in is called a chloroplast in plants. However, not all photosynthesis takes place in the chloroplast. Photosynthetic bacteria for example have no chloroplast, and yet they photosynthesize. Another possible answer to this could be chlorophyll, but again there are differences; different groups of organisms use different types of chlorophyll to facilitate photosynthesis. Thus, I think that the only true answer to this question is that the Sun is THE structure that allows photosynthesis to occur. However, in modern times even this is technically incorrect, as photosynthesis can be stimulated by any suitable light source giving off light at the proper wavelength, for example; a lightbulb. So perhaps the only correct answer is that light itself is what allows photosynthesis to occur.
Do trees without leaves produce oxygen?
Yes, trees produce oxygen through a process called photosynthesis, even when they do not have leaves. However, trees with leaves are able to produce more oxygen due to a larger surface area for photosynthesis to occur.
What is the process called by which an autotroph obtains energy from inorganic compounds instead of light?
The process is called chemosynthesis. Autotrophs use energy from chemical reactions to produce their own food, instead of relying on sunlight like in photosynthesis. This process is common in deep-sea ecosystems where there is no sunlight available.
Is chlorophyll energized in photosynthesis?
Yes, chlorophyll is energized in photosynthesis. When chlorophyll absorbs light energy, it becomes excited and enters an energized state. This energized chlorophyll is then able to transfer the absorbed energy to other molecules involved in the process of photosynthesis, which ultimately leads to the conversion of light energy into chemical energy.
True or false As light intensity increases indefinitely the rate of photosynthesis increases indefinitely?
False. There is a limit to the rate of photosynthesis even as light intensity increases. Once the saturation point is reached, the rate of photosynthesis remains constant.
What prokaryote can make its own food in the absense of light?
Some prokaryotes, such as certain types of bacteria, are capable of photosynthesis even in the absence of light. They can utilize other energy sources, such as chemical energy from inorganic compounds, to make their own food through a process called chemosynthesis. This allows them to survive in environments where light is not available for photosynthesis.
Does photosynthesis occur underwater?
Yes. Even the plants and algae that are completely under the surface are exposed to enough sunlight to conduct photosynthesis. Shoreline plants and partially submerged plants are included in water biomes, and these, of course, photosynthesize.
