30. Which of the following is true in reference to the anatomy of leafs? A. The mesophyll layer of monocot leafs consists of palisade and spongy parenchyma cells and
is located between the upper and lower epidermis.
B. Spongy parenchyma cells are loosely arranged and are of irregular shape allowing gas
exchange between the leaf and outside environment via stomata.
C. Chloroplasts can be found within all epidermal cells, as well as both types of mesophyll cells.
D. Vascular bundles contain only xylem cells which transport photosynthetic products from
leafs to other parts of the plant.