Question

question 10 (1 point)
what is a cuticle in plants?
o a a waxy layer that prevents water evaporation
b a layer of vascular tissue in the stem
o c a cell that produces chlorophyll
d a type of pore that allows gas exchange

Explanation:

The plant cuticle is a protective layer. It is a waxy layer (composed of cutin and waxes) on the outer surface of plant organs (like leaves, stems). Its main function is to prevent excessive water evaporation (transpiration) from the plant, helping the plant retain water.

• Option b: Vascular tissue (xylem and phloem) is for transport (water, nutrients, sugars), not the cuticle.
• Option c: Chlorophyll - producing cells are mesophyll cells (in leaves, with chloroplasts), not the cuticle.
• Option d: Pores for gas exchange are stomata (surrounded by guard cells), not the cuticle.

Answer:

A. A waxy layer that prevents water evaporation