Question

Which statement about leaves is not correct?

a. Vascular tissue is arranged in a net pattern in eudicots and a parallel pattern in monocots.
b. In eudicots, the photosynthetic mesophyll is made up of an upper spongy layer and a lower palisade layer.
c. The epidermis is covered by a waxy layer of cuticle that reduces water loss.
d. Gas exchange occurs through tiny openings in the leaf surface called stomata.
e. Regulation of gas exchange through the leaf is the responsibility of the guard cells.

Answer 1

The incorrect statement about leaves is b, which inaccurately describes the arrangement of photosynthetic mesophyll in eudicots.

Step-by-step explanation:

The statement about leaves that is not correct is b. In eudicots, the photosynthetic mesophyll is made up of an upper palisade layer and a lower spongy layer. In reality, the arrangement is the opposite; the palisade layer is the upper mesophyll layer that is comprised of tightly packed, columnar cells and functions primarily in photosynthesis, while the spongy layer is the lower part of the mesophyll with loosely packed, irregularly shaped cells and larger air spaces between them for gas exchange.

• Vascular tissue is indeed arranged in a net pattern in eudicots and a parallel pattern in monocots.
• The leaf's epidermis is covered by a waxy layer of cuticle that reduces water loss.
• Gas exchange occurs through tiny openings in the leaf surface called stomata.
• Regulation of gas exchange through the leaf is the responsibility of the guard cells that open and close the stomata.