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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 removegases(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 toattract(привлекать) insects. This chemicals
called nectar. It is rich of sugar.