The document describes the different levels of organization in living things: 1) At the subatomic and atomic level, matter is made up of elements containing single types of atoms that can bond to form molecules or compounds. 2) Organelles form from assemblies of biomolecules and work together within cells. 3) Cells make up tissues through groups of similar cells specialized for a common function. 4) Tissues form organs, organs form organ systems, and organ systems work together to form a multicellular organism.

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.”