Difference Between Thylakoid and Stroma

Thylakoid is a membranous organelle present in the chloroplast. Stroma is the cytoplasm of the chloroplast. Thylakoid provides necessary factors and conditions to initiate the light-dependent reaction of photosynthesis. The light-independent reaction of photosynthesis is taken place in the stroma of the chloroplast.

1. What is the role of thylakoid and stroma during photosynthesis?
2. Where is the stroma and thylakoid?
3. Is the stroma in the thylakoid membrane?
4. What is the difference between stroma and Grana?
5. What is the function of stroma?
6. What is the meaning of stroma?
7. Where is the stroma found?
8. Why is the stroma clear?
9. Does Thylakoid have double membrane?
10. Do Thylakoids contain chlorophyll?
11. What is the function of grana and stroma?
12. What is stroma Class 9?

What is the role of thylakoid and stroma during photosynthesis?

Role of the Thylakoid in Photosynthesis. Reactions performed in the thylakoid include water photolysis, the electron transport chain, and ATP synthesis. Photosynthetic pigments (e.g., chlorophyll) are embedded into the thylakoid membrane, making it the site of the light-dependent reactions in photosynthesis.

Where is the stroma and thylakoid?

Stroma, in botany, refers to the colorless fluid surrounding the grana within the chloroplast. Within the stroma are grana (stacks of thylakoid), and the sub-organelles or daughter cells, where photosynthesis is commenced before the chemical changes are completed in the stroma. Photosynthesis occurs in two stages.

Is the stroma in the thylakoid membrane?

The thylakoid ATP synthase is a CF1FO-ATP synthase similar to the mitochondrial ATPase. It is integrated into the thylakoid membrane with the CF1-part sticking into the stroma. Thus, ATP synthesis occurs on the stromal side of the thylakoids where the ATP is needed for the light-independent reactions of photosynthesis.

What is the difference between stroma and Grana?

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 function of stroma?

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 meaning of stroma?

Stroma (from Greek στρῶμα 'layer, bed, bed covering') is the part of a tissue or organ with a structural or connective role. It is made up of all the parts without specific functions of the organ - for example, connective tissue, blood vessels, ducts, etc.

Where is the stroma found?

The stroma is located in the chloroplast of a plant cell.

Why is the stroma clear?

The flattened disk-shape of the grana provides an increased S.A. so that so that the number of reactions that can occur is increased. The stroma is clear, so it doesn't block light thus maxmising the penetration of light into the chloroplast providing the energy for the reaction to proceed.

Does Thylakoid have double membrane?

Plant chloroplasts are large organelles (5 to 10 μm long) that, like mitochondria, are bounded by a double membrane called the chloroplast envelope (Figure 10.13). In addition to the inner and outer membranes of the envelope, chloroplasts have a third internal membrane system, called the thylakoid membrane.

Do Thylakoids contain chlorophyll?

Chlorophyll, the primary pigment used in photosynthesis, reflects green light and absorbs red and blue light most strongly. ... The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the stroma (Figure 3, Figure 4).

What is the function of grana and stroma?

These small membranes are folded into disk-shaped structures known as thylakoids, which are arranged in stacks called grana. The grana are surrounded by stroma, a semifluid matrix that contains proteins and other material to support the grana. Photosynthesis happens in two steps.

What is stroma Class 9?

Stroma is a gel like substance present within the chloroplast in plants. It surrounds the thylakoid membrane and it participates in the process of photosynthesis.