NEETBotanyAnatomy of Flowering Plants
Read the following statements regarding the anatomy of a dorsiventral leaf: (A) The abaxial epidermis generally bears more stomata than the adaxial epidermis. (B) The spongy parenchyma is situated adaxially and consists of loosely arranged cells. (C) The size of vascular bundles is dependent on the size of the veins. (D) The veins vary in thickness in the reticulate venation of dicot leaves. How many of the above sta
Options
- AThree
- BFour
- CTwo
- DOne
Correct answer
A. Three
Step-by-step solution
Statement (A) is correct. In a dorsiventral (dicotyledonous) leaf, the lower (abaxial) surface bears more stomata than the upper surface to prevent excessive water loss. Statement (B) is incorrect. The spongy parenchyma is situated abaxially (below the palisade cells and extending to the lower epidermis), while the palisade parenchyma is placed adaxially. Statement (C) is correct. The vascular system includes vascular bundles seen in the veins and midrib, and their size is dependent on the size of the veins. Statem