Every living thing on this earth is made out of the same thing!

Believe that?

If you were going to divide everything on earth into just two groups,

what would the groups be?

What is the difference between a rock and a tortoise?

Organisms react to their environment

• The rain falls on both the rock and the tortoise.

• Only the tortoise, though, can get thirsty and drink the water.

Most Organisms Can Move

•A tortoise can move into sunlight to get warm.

•A rock can’t

ORGANISMS

THINGS THAT ARE ALIVE (OR WERE ONCE ALIVE) ARE CALLED ORGANISMS

What category would you put these stuffed deer heads in?

Are these organisms?

All living things

(organisms) are made out of the same

building blocks

NO, not LEGOS

But close….

CELLS ARE THE BUILDING BLOCK OF ALL ORGANISMS

Organisms are all just a collection of cells, but, l ike LEGOS, cells can be combined in many different ways to make

different organisms .

All organisms are made of cells.

The simplest organisms have just one cell

Say hello to ALGAE, an organism with just one cell

You are made up of many millions of cells.

A complicated organism like a human being has many different kinds of cells.

HOW WOULD YOU DIVIDE ALL ORGANISMS

INTO 2 GROUPS?

Plants and Animals

WHAT MAKES PLANTS DIFFERENT FROM ANIMALS?

Plants make their own food.

They don’t need to eat.

They can make energy from sunlight and water, using carbon dioxide, which is what we breathe OUT

SunlightWithout sunlight, there wouldn’t be any life on earth at all!

Plants•Without plants, animals would not be able to get energy.

•Without energy, animals would not be able to live.

•Without plants, there wouldn’t be any animals at all!

Think about what it would be like to be

a plant.You would never have to go to the

grocery store.

How would your family’s life be different if your family didn’t

have to spend time looking for food or making money to buy

food?

Plant cells and animal cells are a little different

Plant cells have chloroplasts and cell walls. Animal cells don’t.

Both animal and plant cells have:

1.Nucleus

2.Cytoplasm

3.Vacuole

4.Cell membrane

5.Mitochondria

Every cell has a cell membrane.

It keeps good things in and bad things out of the cell.

This is a picture of a real cell membrane.

Cytoplasm is a jelly that holds everything inside the cell in place, like packing material.

Cytoplasm

What does this have to do with Cytoplasm?

NUCLEUS•The nucleus is the brain of the cell.

•Almost all cells have a nucleus.

In this cell model, the orange is the nucleus.

Nucleus

Can you find the nucleus in this cell model?

Mighty Mitochondria

•All cells have mitochondria.

•This is the power plant of the cell.

•Think “Mighty Mitochondria”

Mighty Mitochondria

In this photograph of a real cell, the nucleus is blue and the mitochondria are red.

Mighty Mitochondria

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This is a real Mitochondrion.

In this cell model, the blue cookies with the frosting are the mitochondria.

In this cell model, the orange pellets are the mitochondria.

Mighty Mitochondria

In this model, the pink and green candies are the mitochondria

Mighty Mitochondria

Vacuole•In an animal cell, the vacuole fills with food being digested and waste material that is on its way out of the cell.

•Think of the vacuole as a vacuum cleaner for the animal cell.

The white cotton ball is the vacuole in this animal cell model.

VACUOLE IN ANIMAL CELL

Can you see the vacuole in this one-celled animal?

The big brown bean-shaped structure is this plant cell’svacuole.

PLANT CELL VACUOLE

When a plant is well-watered, water collects in cell vacuoles producing rigidity in the plant.

VACUOLES

When a plant doesn’t have enough water to fill up its vacuoles, the plant wilts.

In this model, the big blue blobs are the vacuoles.

VACUOLES

Remember the two things plant cells have that animal cells don’t have:

chloroplastsand cel l wal ls .

CHLOROPLASTSPlant cells have something

animal cells don’t:

CHLOROPLASTS

These are the kitchens of the cell.

•This is a picture of a real cell.

•The things that look like pickles are chloroplasts

Plant cells have :

1.Chloroplasts that make their food.

2. Thick Cell Walls

Animal Cells don’t have these. Poor animal cells!

Isn’t this a beautiful cell wall?

In this model, the sides of the box are the cell walls

Plant Cell

Animal cells don’t have cell walls.

Plant cells do!

What are the two things plant cells have that animal cells don’t have?