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

Options

(a) cytoskeleton
(b) mitochondria
(c) endoplasmic reticulum
(d) chloroplasts

Correct Answer:

chloroplasts

Explanation:

Guard cells differ from epidermal cells in having chloroplast. The cell wall of guard cells are not uniform, inner walls are thicker than the outer walls, epidermal cells are uniformly thin