Plant excretion

1. PLANT EXCRETION

• How do plant excrete?
• Plants don’t have special excretion organs like
animals, mostly they excrete
wastes by leaf.

2.

• There are special openings on leaf called stomata.
• Plant remove carbon dioxide (CO2) and oxygen
(O2) by vapor (пар) through stomata.
This process is called transpiration

3.

• Sometimes transpiration is impossible, and plant remove
gases(CO2 and O2) by water droplets(капельки) This process
is called guttation.
• Hydathodes =pores that excrete water
(in guttation)

4.

5.

• Some plants produce chemicals to
attract(привлекать) insects. This chemicals
called nectar. It is rich of sugar.

6. Autumn leaves have wastes

•Leaf fall