What is the role of the stroma in photosynthesis?
The stroma is essential for this because not only does it contain the enzymes necessary for carbon fixation, it also manages the chloroplast response to cellular stresses and signaling between various organelles. It plays an important role in both the light-dependent and light-independent reactions of photosynthesis.
What is the function of Granum in chloroplast?
Importance of Granum Granum act to increase the surface area of the thylakoids, which results in more light being absorbed into the chlorophyll. When you increase the surface area, you allow more materials to attach to the surface, or in this case, react in the different photosystems in the thylakoid membrane.
What happens in the stroma of the chloroplast?
The light-independent reactions of photosynthesis are carried out in the chloroplast stroma, which contains the enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco).
What is the function of the grana?
Grana, the plural of granum, are stacks of structures called thylakoids which are little discs of membrane on which the light-dependent reactions of photosynthesis take place. Stacked into grana, the shape of the thylakoids allow for optimum surface area, maximizing the amount of photosynthesis that can happen.
What is the function of grana and stroma?
Role. Grana: Grana provide a large surface for the attachment of photosynthetic pigments. Stroma: Stroma embeds enzymes required by the dark reaction of photosynthesis.
What is stromal thylakoid?
Inside a chloroplast, thylakoid has two structural forms. One is stroma thylakoid (stroma lamellae), which is a membrane-bound structure embedded into the stroma of chloroplast.
What is the role of grana and stroma?
Grana are the stacks of thylakoids where light reaction of photosynthesis takes place. Stroma is the jell-like matrix of the chloroplast, which contains the enzymes for dark reaction of photosynthesis.
What is the site of photosynthesis within the chloroplast?
Photosynthesis occurs in the chloroplast, an organelle specific to plant cells. The light reactions of photosynthesis occur in the thylakoid membranes of the chloroplast. Electron carrier molecules are arranged in electron transport chains that produce ATP and NADPH, which temporarily store chemical energy.
What is grana and stroma in chloroplast?
Grana and stroma are two structures of chloroplast. Grana are the stacks of thylakoids where light reaction of photosynthesis takes place. Stroma is the jell-like matrix of the chloroplast, which contains the enzymes for dark reaction of photosynthesis.
What is thylakoid grana and stroma?
Thylakoids are usually arranged in stacks (grana) and contain the photosynthetic pigment (chlorophyll). The grana are connected to other stacks by simple membranes (lamellae) within the stroma, the fluid proteinaceous portion containing the enzymes essential for the photosynthetic dark reaction, or Calvin cycle.