Where does the Calvin cycle occur and does it need light?
The Calvin cycle, or the light-independent reactions of photosynthesis, occurs in the stroma of the chloroplasts in plants and algae. It is a series of biochemical reactions that convert carbon dioxide into glucose. Unlike the light-dependent reactions that occur in the thylakoid membrane and require light, the Calvin cycle can occur in the absence of light; however, it relies on the products of the light-dependent reactions, such as ATP and NADPH, which are generated by capturing light energy.
The Calvin cycle, also known as the light-independent reactions or the dark reactions, occurs in the stroma of the chloroplasts in plant cells. It does not require direct light, but it relies on the products of the light-dependent reactions, which occur in the thylakoid membrane of the chloroplasts and require light. The light-dependent reactions produce energy-rich compounds, such as ATP (adenosine triphosphate), and reducing power, in the form of NADPH (nicotinamide adenine dinucleotide phosphate), which are used in the Calvin cycle to drive the synthesis of carbohydrates, such as glucose.
The Calvin cycle, also known as the light-independent reactions or the dark reactions, occurs in the stroma of chloroplasts in plant cells. The stroma is the fluid-filled region that surrounds the thylakoid membranes where light-dependent reactions take place.
Unlike the light-dependent reactions, the Calvin cycle does not directly require light. However, it indirectly depends on the products of the light-dependent reactions, such as ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are generated by capturing light energy. These energy carriers are then used in the Calvin cycle to fuel the synthesis of organic molecules.
To get this answer, you can refer to a biology textbook or search for reliable sources online, which provide information about photosynthesis and the different stages involved, including the location and significance of the Calvin cycle.