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The stroma of a plant is the region outside of the thylakoid space. This serves two functions in the both the light-dependent and light-independent (Calvin cycle) reactions. In the light-dependent reactions, the H+ ions that build up within the thylakoid begin to form a concentration gradient between the thylakoid and the stroma. As a result, the H+ ions need to diffuse into the stroma. In order to do this, the ions must travel through an enzyme known as ATP synthase. Once it does, the movement of H+ ions through ATP synthase into the stroma provides energy for ADP to become ATP. The ATP formed is an energy source to power the Calvin cycle. Now, the light-independent (Calvin cycle) reactions occur in the stroma.
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JordanThe stroma is the fluid-filled space surrounding the thylakoid membrane in chloroplasts. Its main function is to provide a medium for enzymatic reactions involved in photosynthesis and to support the structure of the chloroplast. It also contains DNA, ribosomes, and enzymes necessary for protein synthesis within the organelle.
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What is the function of stroma?
The stroma is the fluid-filled space surrounding the grana inside chloroplasts. It plays a role in the synthesis of organic molecules through the Calvin cycle, which is a series of reactions that convert carbon dioxide into glucose using energy from sunlight. Additionally, the stroma contains enzymes, DNA, and ribosomes necessary for protein synthesis within the chloroplast.
Does ATP contain stroma?
ATP is a molecule that serves as the primary energy carrier in cells. It is not a physical structure like stroma, which refers to the gel-like fluid inside the chloroplasts. So, ATP itself does not contain stroma.
What are the spaces between the grana in chloroplast called?
They are called stroma.
Does the Calvin cycle require light to function properly?
No, the Calvin cycle does not require light to function properly. It is a light-independent process that takes place in the stroma of the chloroplasts in plants.
What is the fluid that surrounds the thylakoids in chloroplasts?
The fluid that surrounds the thylakoids in chloroplasts is called stroma. Stroma contains enzymes, DNA, ribosomes, and other components needed for photosynthesis to occur.
