Excretion is a necessary life process both in plants and animals. Plants use a variety of techniques to get rid of waste material. For example, waste material may stored in the cell vacuoles or as a gum and resin, removed in the falling leaves, or excreted into the surrounding soil.
1. Excretion is the removal of ..............
a. Salts
b. Glucose
c. Amino acids
d. Metabolic wastes
2. State TRUE or FALSE : Many plant waste products are stored in cellular vacuoles.
a. TRUE
b. FALSE
3. Plants excrete through ..........
a. Through soil
b. Through transpiration
c. Through dead leaves
d. All of the above
4. The main waste products in plants is
a. Carbon dioxide
b. Water vapour
c. Oxygen
d. All of the above
5. Function of xylem tissue is
a. Collection of food material
b. Conduction of absorbed water
c. To take out water from cells
d. All of the above