1. Unit 4: Cells, Tissues, Organs & Systems Chapter 10: “The cell is the
basic
unit of
life.”

2. Cells & Living Things What of? Early things made are living
idea: all living things
are made of air, fire and
water

3. Now: all living things are
made of
cells
(cell theory)
Cell: the
basic,
functional
unit of life

4. Characteristics of
Living
Things
All 1. 2. 3. 4.
living
Grow
Move
things...
Respond
to stimuli
Reproduce

5. Growth
•A result of the cells in your
body increasing in number
•New cells will grow to
replace old cells that die.

6. Movement
•A change in position, shape
or location (locomotion)

7. Respond to
Stimuli
anything
•Stimulus:
causes an
that
organism to react.
•Maybe external or internal

8. Identify the stimulus & response

9. Reproduction
•Producing more
kind (offspring)
of the same

10. The
Compound
Light
Microscope

12. The Compound Light Microscope
PART FUNCTION
Eyepiece
Body tube (barrel)
Coarse adjustment knob
Fine adjustment knob
Objective lenses
Revolving nosepiece
Stage
Iris diaphragm
Light source
Base
Arm

13. Total
Magnification...
power of objective
lens
power of eyepiece
lens

14. Core
Lab
Activity
10-1A
Setting Up and
Using a Microscope
Pg.384-5

15. The
Cell
Theory
states:
•The cell is the basic
life.
•All living things are
one or more cells.
unit of
made of
•All cells come from other
living cells.

16. Cell Organelles... 1. Cell membrane: • Found in both plant and animal
Organelles are not real organs! They just act like organs inside the cell.
1. Cell membrane:
• Found in both plant and animal
cells
• Surrounds and protects the
contents of the cell
• Controls the movement of
materials in and out of the cell

17. 2. Cytoplasm:
• Found in both plant and
animal cells
• Jell-like fluid that in which
organelles float
the
• Helps to move materials
food to different parts of
cell
like
the

18. plant cells their box-like shape
3. Cell wall:
• Found only in plant cells
• Tough, rigid structure that give
plant cells their box-like shape
• Made mostly of cellulose

19. 4. Nucleus:
• Found in both plant and
animal cells
• Large round
visible
structure often
• Contains the chromosomes
• The “control centre” of the cell

20. 5. Vacuole:
• Balloon-like spaces in the
cytoplasm
• Store materials that can not
used right away
• Found in both plant and be
animal cells (smaller and more
numerous in animal cells)

21. 6.Mitochondrion:
• Oval, bean-like structures
• Produces energy by breaking
down food particles
• Found in both plant and
animal cells

22. 7. Chloroplast:
• Green structures that contain
chlorophyll
• Capture the sun’s energy for
photosynthesis
• Found only in plant cells

24. Plant
vs.
Animal
Cells

26. dead or in need of repair
Dividing
Cells
•Necessary for
reproduction
growth and
•Will replace cells that are
dead or in need of repair

27. Mitosis
•Occurs in body cells
(somatic cells) not in sex
cells (egg and sperm cells)
•Bacteria cells reproduce in
this matter

30. Energy
for
Cells
•Cells need energy
processes.
for all
life
•Energy is stored
called glucose (a
sugar)
in food
type of

31. •To release energy cells
carry out cellular
must
respiration.
Here the
energy is converted to
another form of energy.
•Takes place in the
mitochondrion.

32. •Most energy is released
heat. as
•Oxygen
cellular
•Carbon
is necessary for
respiration.
dioxide
and water
vapour are waste gases
produced.
These are
removed from the cell.