short presentation

2. PLANT SECONADRY METABOLITES :-
Chemical compounds that do not participate
in metabolism of plants.
Secondary metabolites are organic
compounds that are not directly involved in the
normal growth, development, or reproduction
of an organism.
Unlike primary metabolites, absence of
secondary metabolites does not result in
immediate death, but rather in long term
impairment of the organism’s survivability,
fecundity or aesthetics or perhaps in no
significant change at all.

3. why secondary metabolites are produced by plants?
Secondary metabolites are produced in plants is
mainly for :-
1. Disease resistance (from fungus, bacteria,
virus and pests)
2. For pollination
3. To combat in extreme condition of stress.
Stress may be biotic or abiotic {Drought, Cold,
Temperature}

4. The classes of plant secondary metabolitesare :-
•Phenolics:- Consisting of one or more hydroxyl group bonded directly
to an aromatic hydrocarbon group.
•Alkaloids:-Synthesized from pharmacologically active compounds,
primarily composed nitrogen. Synthesized from common amino acids.
•Saponins:-works in plant defense.
•Terpenes:- Protect the plant
•Lipids:- Singling and energy storage Compounds.
•Carbohydrates :-Vital source of energy.

5. Function of plant secondary metabolites:-

6. Uses of secondary metabolites:-
Secondary metabolites often play an
important role in plant defense against
herbivores and other interspecies defenses.
Humans use secondary metabolites
as medicines, flavorings, pigments,
and recreational drugs.

7. uses of secondary metabolites:-

8. Conclusion:-
• Secondary metabolites are not involve in main biosynthetic
pathway but it is useful for plants. They are responsible for
protection of plants from stress, help in pollination and
gives disease resistivity. They are also useful for human in
many way like production of drugs, essential oil, flavoring
substances and pigments.

9. Reference :-
• http://www.biologie.uni-hamburg.de/b-online/e20/20a.htm
• https://www.mdpi.com/journal/ijms/special_issues/secondray-metabolism
• https://www.researchgate.net
• https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7479915

10. Thank you
Every teacher and staff of P K Roy memorial
college, Dhanbad.