00:01
Hello everyone, in this question we will be talking about the c4 plants.
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The c4 plants has bundle sheet which are basically the inner ring around the vascular bundles.
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And there is outer layer that is the mesophyll cell.
00:27
So here there is presence of spatial arrangement in the c4 plants.
00:36
The mesophyll cells are connected to the bundle sheath via plasmidemata.
00:45
The phosphoenol pyruvate carboxylase is present in the mesophyll cells and rubisco is present in the bundle sheet cells.
01:00
The mesophyll cell contains the chloroplast with stabbed thylacoids while chloroplasts in the bundle sheet are unstacked and that is why they also represent the chloroplast dimorphism.
01:17
Minimize the photorespiration and optimize the kelvin cycle c4 photosynthetic carbon cycle came into existence and which is also known as hatch and slack pathway.
01:32
The c4 cycle concentrates the co2 at the site of the carboxylation.
01:41
Thus keeping the co2 concentration high enough for rubisco to bind with co2 only rather than the o2.
01:50
And the c4 plants include both monocodes and diacots like gramony, chinopode and cyperase.
01:58
Phosphonolpirovate is converted to oxaloacetate in the presence of phosphoenol pyrovate carboxy lace and this oxaloacet enters into the mesophyll cell which is convert malate and h is oxidized to nap plus and this is the step of carboxylation.
02:23
The mesophil cell and the bundle sheet cell are connected by the plasmus.
02:33
This malate enters into the bundle sheet where it is converted to the three carbon compound, that is pyruate and one molecule of carbon dioxide is released.
02:49
And this step here is the decarboxylation step.
02:54
And this carbon dioxide enters into the kelvin cycle.
03:02
Now this pyruvate enters into the mesophyll and is converted to phosphorynol pyruvate in which two molecules of atp is hydrolyzed to two molecules of amp...