In land plants, the guard cells differ from other epidermal cells in having

In land plants, the guard cells differ from other epidermal cells in having
  1. mitochondria
  2. endoplasmic reticulum
  3. chloroplasts
  4. cytoskeleton

Solution

The guard cells of stomata in land plants are specialised epidermal cells which contain chloroplasts. In rest of epidermal cells, chloroplasts are absent. But chloroplasts of guard cells are capable of poor photosynthesis as there is absence of NADP reductase enzyme.

Asked in: NEET 2011 (Screening)

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