Transcript 20120202101646_808

Cells
cell
organelle
cell membrane
cytoplasm
nucleus
mitochondria
vacuole
cell wall
chloroplast
microscope
Cells
What are plants and animals
made of?
What are plants and
animals made of?
cell (sel) The smallest unit of living matter
that can carry out the basic processes of
life.
organelle (ôr´gə nel´) Organelles are cell
structures that work together to carry out
life processes.
cell
organelle
cell membrane
(selorganelles
mem´brān) Thein
What
are the
layer around the outside of a cell.
animal cells?
cytoplasm (sī´tə´pla´zəm)
The gel-like
nucleus
substance that fills a cell.
cytoplasm
nucleus
(nü´klē əs) An object positioned
mitochondria
at the center; in cells, the structure that
controls all activity within a cell.
mitochondria (mī´tə kon´drē ə)
Structures within a cell that break down
cell membrane
vacuoles
food and
turn it into energy.
Cell
vacuole (vak´ū ōl) A Animal
cell structure
used
for storage.
cell
membrane
cytoplasm
nucleus
mitochondria
vacuole
What are the organelles in
plant cells?
mitochondria
vacuole
cell wall
chloroplast
nucleus
cell wall (sel wol) An additional layer
around the outside of plant cells.
plast) Green
structures inside plant cells that cell
turn
wall
cell membrane
sunlight into food.
chloroplast
chloroplast
(klôr´ə
cytoplasm
How can cells be seen?
microscope (mī´krə skōp´) A tool that
magnifies objects.
microscope
Review
Main Idea
Why are animal and plant cells different?
All cells have structures which
work together to keep the cell
alive. Because they cannot move
around, plants need cell structures
that help them to conserve water
and make their own food. Animals
don’t need these structures.
Animal cells have to be more
flexible to allow the animals to
move around.
Review
Main Idea
What are cells?
Cells are the smallest units of a living thing that can carry
out the basic processes of life.
Review
Summarize
What does the cell wall do in plants?
The cell wall
protects plants’
cells and gives
them their shape.
It lets food and
waste move into
and out of the
cell.
It provides extra
support for the
plant.
The cell wall protects plants’ cells
and gives them shape and
support, while allowing food and
waste to move into and out of the
cell.
Review
Vocabulary
Match each word with its definition.
cell
organelles
cell
membrane
cytoplasm
nucleus
A)
the layer around the outside of a cell
B)
structures that work together to help them perform
life processes
C)
an object positioned at the center; in cells, the
structure that controls all activity within a cell
D)
the smallest unit of living matter that can carry out
the basic processes of life
E)
the gel-like substance that fills a cell
Review
Vocabulary
Match each word with its definition.
mitochondria
vacuole
cell wall
chloroplast
microscope
A)
a tool that magnifies objects
B)
a cell structure used for storage
C)
an additional layer around the outside of plant cells
D)
a green structure inside plant cells that turns
sunlight into food
E)
structures within a cell that break down food and
turn it into energy
Review
Reading Diagrams
Which structures in plant and animal cells are the same?
vacuole
mitochondria
nucleus
cytoplasm
chloroplast
cell membrane
cell wall