Palisade parenchyma is absent in leaves of:

Options

(a) mustard
(b) soybean
(c) gram
(d) sorghum

Correct Answer:

sorghum

Explanation:

Palisade parenchyma is absent in leaves of Sorghum. It is a leaf tissue composed of columnar cells containing numerous chloroplasts in which the long axis of each cell is perpendicular to the leaf surface. The palisade parenchyma is usually directly beneath the epidermis of the upper surface of the leaf. The cells of the palisade parenchyma are cylindrical. Neighbouring cells look like the stakes of a palisade. Cells of the palisade parenchyma contain three to five times as many chloroplasts as those of the