(CELLSandLIFE)

1.  Tissues provide for a
division of labor among
body cells.
 Cells carry out all the
chemical activities
needed to sustain life.
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2. Mitosis
Cytoplasmic
Division
Interphase
Differentiation
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3.  Cells vary greatly in SIZE
and STRUCTURE.
 Cells have two main
parts - NUCLEUS &
CYTOPLASM
 Enclosed in a CELL
MEMBRANE (also called
PLASMA MEMBRANE)
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4. C e l l u l a r B a s i s o f L i f e
 ENDOPLASMIC
RETICULUM
Rough
Smooth
 GOLGI APPARATUS
 MITOCHONDRIA
 LYSOSOMES
 MICROFILAMENTS
 MICROTUBULES
 NUCLEUS
 NUCLEOLUS
 CHROMATIN
 VESICLES
 CENTROSOME
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5. There are 4 major
types of tissue:
A. Epithelial
B. Connective
C. Muscle
D. Nervous
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6. C e l l u l a r B a s i s o f L i f e
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General Characteristics:
▲ Found throughout the body, covers all body surfaces
both inside and out.
▲ Main glandular tissue.
▲ Attached to underlying connective tissue by
noncellular nonliving basement membrane.
▲ Usually has no vascular tissue - blood supply
▲ Cells reproduce rapidly (rapid healing).
▲ Cells tightly packed together

7. C e l l u l a r B a s i s o f L i f e
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General Characteristics:
▲ Most abundant tissue in your body, found throughout
▲ Binds structures together
▲ Provides support, protection, framework, fills space,
stores fat, produces blood cells, fights infection, and
helps repair tissue.
▲ Composed of more scattered cells with abundant
intercellular material ' matrix
▲ Made up of a ground substance (fluid, semi-solid) and
fibers
▲ Most has a good blood supply
▲ Cells can reproduce

8. C e l l u l a r B a s i s o f L i f e
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A. Skeletal - skeletal muscles
B. Smooth - in hollow organs,
stomach
C. Cardiac - wall of the heart

9. C e l l u l a r B a s i s o f L i f e
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Found in brain, spinal cord, nerves
A. Neurons - transmit signals
B. Neuroglia - protection, support

10. CELLS
 Cells are too small to be
seen without magnification.
 There are two primary
types of cells.
 Prokaryotic single-celled
organisms were the earliest
and most primitive
 There are more bacterial
cells in the body than
human cells.
 Cells contain genetic
material.
TISSUES
 Muscle tissue is three times
more efficient at burning
calories than fat.
 For every pound of fat gained,
you add seven miles of new
blood vessels.
 There are more than 600
individual skeletal muscles and
206 bones in your body.
 You are taller in the morning
than in the evening.
 Your stomach manufactures a
new lining every three days to
avoid digesting itself.
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11. AVIGEL D. BACTASA
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