A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls. The cells have numerous chloroplasts. What type of cells are they?
A) parenchyma
B) xylem
C) endodermis
D) collenchyma
E) sclerenchyma

Question

Quizplus · Accepted Answer

The loosely packed cells with relatively thin cell walls and numerous chloroplasts describe parenchyma cells, which are photosynthetic and are involved in many metabolic functions including storage, secretion, and gas exchange. Xylem cells have thick cell walls and are involved in water transport, while collenchyma and sclerenchyma cells have thick cell walls for structural support. Endodermis cells are found in the roots and are involved in regulating water and mineral uptake.

A Student Examining Leaf Cross Sections Under a Microscope Finds