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2. The Levels of
Organization

3. Subatomic

4. SUBATOMIC AND ATOMIC
LEVEL
•Matter is made up of elements

5. •Each element contain single types
of atoms.
Example:
Gold is element.
A piece of pure
gold contains only
gold atoms.

8. O
C
H
N
Ca
P

9. K
S
Cl
Na
Mg
Fe
Cu
Mn
Zn
I

10. Molecules
•Chemical combination of two or
more atoms
•2 or more bonded atoms
• Form compounds

12. Micromolecules Macromolecule
s

13. Organelles
• “Tiny organs”
•Biomolecules assemble in a particular way and form
organelles.
•The organelles are sub-cellular structures and when
they assemble together cells are formed.
Mitochondria(cellular respiration)
Protein synthesis

14. Cell
• Made of organelles
• Basic unit of structure & function
• LIVING

17. In multicellular organisms, same kind
cell are organized into groups called
tissues.
Tissue is a group of similar cells
specialized for the performance of a
common function.
Tissue level

21. Organ and organ system
level
• Tissues that work together
“In multicellular organisms more than one type of
tissues having related functions are organized
together and make a unit called organ”

22. Epithelial
tissues
Muscular
tissues
Perform
contraction of
stomach wall
for grinding and
moving food
Secrete gastric
juice for
protein
digestion

24. Organ Systems
• Different Organs work together to form an
organ system

26. Organism/Individual
“ Different organs and organ
systems are organized together
to form an Organism/ Individual”
•
•

28. Population
• Same type of
organism living
together at the
same place in
the same time.

30. Community
• Several populations living together
• Population interact

31. Biosphere
“The part of the earth inhabited by
organisms communities is called
biosphere”.
http://people.hofstra.edu/geotrans/eng/ch8en/conc8en/envisys.html

32. “The area where living
organisms interact with
the non livivg
componenets of the
environment.”