Changes

===About Guard Cells===

: When '''guard cells''' become '''flaccid''', due to [[dehydration]], the [[stomata]] close and [[Water Vapour|water vapour]] can no longer escape the [[leaf]]. This stops [[transpiration]], preventing further [[water]] loss. The closed [[stomata]] also prevent [[Carbon Dioxide]] from entering the [[leaf]], stopping [[photosynthesis]] and conserving [[water]] (which is needed for [[photosynthesis]].