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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?
Which photosynthetic process would continue to occur in a room with no light?
the calvin cycle
What region can photosynthetic organisms not live in?
In order to live, photosynthetic organisms cannot survive without sunlight and water. Therefore a photosynthetic organism cannot survive in any place without water, such as a desert, or without light and air, such as the moon.
What is light harvesting?
light harvesting is a set of photosynthetic pigment molecules that absorb light and channel the energy to the photosynthetic reaction centre, where the light reactions of photosynthesis occur.
Can photosynthesis occur without light?
No, photosynthesis cannot occur without light. Light is a necessary component for the process of photosynthesis to take place in plants.
Is paramecia photosynthetic?
No, paramecia are not photosynthetic. Photosynthetic organisms react when exposed to light. Paramecia cannot detect light.
What are photosynthetic lamellae?
A photosynthetic antenna that contains several pigment that harvest light. The pigment includes chlorophyll a and b. Though chlorophyll a is more abundant. The harvested light istransferred to chlorophyll a where the actual conversion of light energy to chemical energy occurs.
What is the saturation point of light in a chloroplast?
The saturation point of light in a chloroplast is the point wherein rate of carbon production can no longer rise. It describes the amount of light that is beyond the capability of the chloroplast to absorb.
Is photosynthetic oxygen production light-dependent?
Yes, photosynthetic oxygen production is light-dependent.
What process cannot occur in the dark treatment during photosynthesis?
In the dark treatment of photosynthesis, the process of light-dependent reactions cannot occur. These reactions, which take place in the thylakoid membranes of chloroplasts, require light to produce ATP and NADPH. Without light, these energy-carrying molecules cannot be generated, halting the overall photosynthetic process, particularly the subsequent light-independent reactions (Calvin cycle) that rely on them.
Where do the reactions of photosynthesis happen?
They occur first within the cytochrome biochemical photosynthetic Enzymes that reside within the Thylacoid membrane systems that reside within the Grana and Stroma of the Chloroplasts that reside within photosynthetic Organisms.
Which photosynthetic can occur at night?
apex: the Calvin cycle
What photosynthetic pigment is essential for the process of photosynthesis to occur?
One or more of these known pigments is required to capture the energy of light and drive photosynthesis: Chlorophyll, Xanthophyll, Carotene, Phaeophytin, Phycobilin, Bacteriochlorophyll or Bacteriorhodopsin.
