The Amazing Creation of Life
Cells - Tissues - Organs - Organ Systems
From the building blocks of matter to the
complex system of living organisms
Types of Cells:
Procaryotic
 Simple structure
 No distinguishable
nucleus
 Outer cell wall & fluid
cell membrane
 No defined organelles
in cytoplasm
 Ex: Malaria, Difflugia,
Protista, Bacteria
Eucaryotic





Complex structure
Defined organelles
Animal & Plant cells
Larger in size
Specialized packaging
& transport systems
 Ex: Rodophyta, plants,
humans, animals
Bacterial Cells
- Prokaryotic
Unicellular organism – consists of only one cell
That one cell carries out all functions required to
maintain the life of the organism
Examples: Bacteria, Amoeba, Protazoa
Multicellular organism – consists of more than
one cell
–Cells are specialized to perform certain
functions (cell specialization/differentiation)
Eukaryotic - Animal Cell
Eucaryotic - Plant cell
Examples of Cell
Specialization
1. Neuron (nerve cell):
– Sends info. from one part of the body to
another
– Very long and thin
2. Red blood cells:
– Carry oxygen throughout body
– Flattened disks so that they can easily flow
through blood vessels
Close-up: Blood cells in capillary
3. Sperm cell:
– Fertilizes egg
– Strong tail for quick swimming, distinct head
for entering egg cell
From Cells to Tissues to
Organs
Complex organisms are composed of many millions of
cells, which can be grouped together by function to form
tissues.
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Types of Animal Tissues
Tissues found in the Arm
Plant
Tissues
Different Tissues form
Organs
All kinds of Cells, Tissues, and Organs are
similar in
structure and function
Organs work together
Creating Organ Systems
Human Cardiovascular System
Example of Plant:
The Incredible Cell!