Question

Bundle sheath extensions in a dicot leaf and in a monocot leaf are ________ and ________ respectively.

• A. Parenchymatous, Collenchymatous
• B. Parenchymatous, Sclerenchymatous
• C. Sclerechymatous, Parenchymatous
• D. Collenchymatous, Sclerenchymatous

Answer 1

Answer: (B)

Parenchymatous, Sclerenchymatous

• In dicot leaf, bundle sheath is generally single-layered and formed of colourless cells. Bundle sheath extensions are parenchymatous.
• In monocot leaf, bundle sheath may be single or double layered and the cells generally possess chloroplasts. Bundle sheath extensions are sclerenchymatous.

Thus, the correct option is (B).