| 21. | As a result, chloroplasts in mesophyll cells and bundle sheath cells are specialized for each stage of photosynthesis.
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| 22. | Some of the species contain silica in their bodies for rigidity and so the mesophyll often has sclerenchymatous idioblasts.
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| 23. | Later, the larva mines from the midrib into the mesophyll near the apex of the leaf in an irregular blotch.
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| 24. | This enables a bundle-sheath-type area and a mesophyll-type area to be established within a single cell.
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| 25. | Photosynthesis depends on the diffusion of Carbon dioxide ( CO 2 ) from the air through the stomata into the mesophyll tissues.
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| 26. | Pyruvate is converted back to PEP in the mesophyll cells, and the cycle begins again, thus actively pumping CO 2.
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| 27. | This movement lowers the water potential in the leaf airspace and causes evaporation from the mesophyll cell wall menisci of liquid water.
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| 28. | Carbon dioxide combines with ribulose bisphosphate and proceeds to the Calvin Cycle . 4 ) Pyruvate re-enters the mesophyll cell.
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| 29. | In plants, it is part of the mesophyll, where it forms a layer next to the palisade cells in the leaf.
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| 30. | The mine is linear and situated in either the upper or lower mesophyll layer of the leaf tissue, often near the midrib.
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