| 1. | Specialized potassium efflux channels participate in mediating release of potassium from guard cells.
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| 2. | Osmosis is also responsible for controlling the movement of guard cells.
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| 3. | They both consist of two large guard cells and pore, and are anomocytic.
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| 4. | Unlike most epidermal cells, the guard cells of plant stomata contain relatively well-developed chloroplasts.
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| 5. | The guard mother cell then makes one symmetrical division, which forms a pair of guard cells.
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| 6. | Malate is also synthesized by the carboxylation of phosphoenolpyruvate in the guard cells of plant leaves.
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| 7. | The guard cells swell, squeezing the stomata closed.
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| 8. | Chloroplasts are generally absent in epidermal cells, the exception being the guard cells of the stomata.
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| 9. | The epidermis of all aerial organs, but not roots, is covered with a guard cells have chloroplasts.
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| 10. | In daylight, plants using CAM close their guard cells and discharge malate that is subsequently transported into chloroplasts.
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