Various types of excretion in plants

3. TYPES OF EXCRETION-
PLANT EXCRETION ANIMAL EXCRETION

4. PLANTSDO NOTHAVE SPECIALIZED
EXCRETORYORGANSOTHEY
TEMPORARILYSTORETHE PRODUCTS
IN CERTAINPARTSOFTHE BODYIN
THE FORMOF INSOLUBLE CRYSTALS
OR COLLOIDS.

5. Some of the excretory products
are stored within some specific
cells of the plant body
permanently.

6. SHEDDINGOF LEAVES---
In deciduous plants excretory
substances are transported and
stored in the leaf cells before leaf
fall and are eliminated with
abscissionof the leaves.
EXAMPLES: Hog palm, Silk
cotton, Albizzia, Sirish, Simul etc.

7. EXFOLIATION OF BARK---
Mature tall trees store their
excretory products in the bark.
They get rid of it by exfoliation of
the bark.
EXAMPLES: Terminalia, Guava,
Eucalyptus etc.

9. Secretion of latex :
•Some plants get rid of their excretory
products by the secretion of milky
white thick fluid , called latex.
•EXAMPLE: Banyan , Calotropis ,
Pararubber , Cactus etc.

10. SECRETION OF GUMS :
Some plants eliminate their
excretory materials by the
secretion of a sticky, fluid,
called gum.
EXAMPLE: Acacia, Albizzia ,
Odina ,etc.

11. SECRETION OF RESIN:
Some plants liberate their excretory
materials by the secretion of a
transparent , yellowish sticky fluid,
called resin .
EXAMPLE: Pine, Shellac, Lacquer,
etc.

12. BY
DIFFUSION:
Excretory materials like CO2 is removed
through stomata, lenticels by way of
diffusion . Water soluble materials are
leached out to the soil through leaves.

14. Plants of papaya,
pararubber,
banyan
calotropis, etc.
SOURCE
Latex of pararubber is
used for the production
of commercial rubber,
and also as a medicine
to cure wounds.
IMPORTANCE
LATEX

15. GUMS

18. QUININE
Source:
Bark of cinchona.
Importance:
Medicine for
malarial fever.

19. NICOTINE
Source:
Leaves of
Tobacco.
Importance:
Acts as a
narcotic
substance.

22. Source:
Root of Rauwolfia
serpentina.
Importance:
Lowers high
blood pressure.
RESERPIN
E

23. MORPHINE
Source:
Young fruit
skin of Opium
(Poppy).
Importance:
Great pain
reliever and
somnoliser.

25. Source:
Leaves and roots of
Belladonna.
Importance:
Used as pupil dialator
before eye testing.
Increases blood
pressure. Activates
nervous system.

26. Source:
Fruit body of Ergot fungus.
Importance:
Medicine used as anti-
bleeding.

27. THEINE
• Source:
•Leaves of tea plant.
• Importance:
•It activates the
nervous system.

28. SANIONINE
Source:
Leaves of
Artemisia.
Importance:
Medicine for
removal of worm.

29. EMETINE
Source:
From the
dried roots
and rhizomes
of Ipecac.
Importance:
Used for medicinal
preparation to
induce vomiting
particularly in case
of poisoning and
drug over-dose.