Photosynthetic Prokaryotes And Photosynthetic Eukaryotes In What Points Are Different With Each Other?

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Hummaira Latif Profile
Hummaira Latif answered
In photosynthetic eukaryotes chloroplasts in cells are the sites of photosynthesis but this is not the case in photosynthetic prokaryotes. In eukaryotes, chloroplasts in their cells are abundant, which are not present in photosynthetic prokaryotes.

So, we can say that the makings sites of carbohydrates are different in both. For example when we see the higher plants which are an example of eukaryotic cells, the chloroplasts present mainly in the mesophyll tissues in the leaves. Each cell of mesophyll has 20-100 chloroplasts. Chloroplast has double membrane envelops that encloses a dense fluid filled region called stroma, which contains most of the enzymes required to produce carbohydrate molecules.

Another system of membranes suspended in the stroma, consisting of set of flat disc like sacs called thylakoid. The thylakoid membrane encloses a fluid filled lumen or space, which is separated by thylakoid membrane with stroma. The chlorophyll is embedded in the thylakoid membrane. Chlorophyll absorbs light and converts it into chemical energy of ATP and NADPH; the products which synthesize carbohydrate in the stroma of chloroplast.

But photosynthetic prokaryotes lack chloroplast all together in their cells. So, for carbohydrate synthesizing, they do have unstacked photosynthetic membranes, which work like thylakoid.
Hummaira Latif Profile
Hummaira Latif answered
In eukaryotes the chloroplasts are the site of photosynthesis and all parts have green pigment but the leaves are abundant with chloroplast. Present mainly in the cells of mesophyll tissue in the leaves. Each mesophyll cell has 20-100 chloroplast. Chloroplast has double membrane envelops that encloses a dense fluid filled region called stroma which contained most of the enzymes required to produce carbohydrate molecules. Another system of membranes suspended in the stroma, consisting of set of flat disc like sacs called thylakoid. The thylakoid membrane enclosed a fluid filled lumen or space, which is separated by thylakoid membrane with stroma. In some places in the chloroplast the thylakoid sacs are stacked in columns called grana. The chlorophyll is embedded in the thylakoid membrane and impact green color to the plants. Thylakoid membrane is the part of ATP synthesis by chemosmosis. Chlorophyll absorb light and covert it into chemical energy of ATP and NADPH the products which are used to synthesize sugar in the stroma of chloroplast.

Photosynthetic prokaryotes lack chloroplast but they do have unstacked photosynthetic membrane which works like thylakoid.

The thylakoid membrane in eukaryotes contains many pigments but mainly is chlorophyll. Chlorophyll a, b, c and d are found in the eukaryotic photosynthetic plants and algae, while the other are found in prokaryotes and some photosynthetic bacteria which are known as bacteriochlorophylls

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