In humans, one function of the skin is to prevent water loss. Skin releases water or holds in water when necessary.

Question

Which two structures in plants have a similar function to skin?

roots and chloroplasts
phloem and roots
cuticle and stomata
stomata and phloem

Answer 1

The two structures in plants that have a similar function to skin in preventing water loss are the cuticle and stomata.

• The cuticle is a waxy layer that covers the surface of the leaves and stems, helping to reduce water loss by evaporation.
• Stomata are small openings on the surface of leaves that allow for gas exchange; they can open and close to regulate water loss and gas exchange.

Together, they help manage water retention in plants, much like how skin functions in humans.