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CELLS The Basic Unit of Life

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CELLSThe Basic Unit of Life

Cells are the building blocks

of all living things

Cells are the building blocks

of all living things

Cells come from other existing cells

Cells are the building blocks

of all living things

Cells come from other existing cells

Cells are the basic structural and functional unit of life

Once upon a time...you were a tiny little egg cell

Once upon a time...you were a tiny little egg cell

Once upon a time...you were a tiny little egg cell

Once upon a time...you were a tiny little egg cell

That’s you!

Once upon a time...you were a tiny little egg cell

That met a handsome little sperm cell. . .That’s you!

Once upon a time...you were a tiny little egg cell

That met a handsome little sperm cell. . .That’s you!

Once upon a time...you were a tiny little egg cell

That met a handsome little sperm cell. . .

Things went well, and they hit it off!

That’s you!

Once upon a time...you were a tiny little egg cell

That met a handsome little sperm cell. . .

Things went well, and they hit it off!

That’s you!

The sperm cell fertilized the egg cell and formed a

zygote. . .

Things became interesting after that!

Things became interesting after that!

Things became interesting after that!

What just happened here?

Things became interesting after that!

What just happened here?

The zygote divided into two, then four cells.

Things became interesting after that!

What just happened here?

The zygote divided into two, then four cells.

What had to happen in order to change the four cells you saw on the last slide to the small fetus you viewed on this slide?

What had to happen in order to change the four cells you saw on the last slide to the small fetus you viewed on this slide?

The cells had to differentiate from stem cells, and they had to divide so the animal could grow

Diversity within the biosphere

Diversity within the biosphereStaph - a bacteria cell

Diversity within the biosphereStaph - a bacteria cell

It is the only cell that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

It is the only cell that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Volvox - a protistIt is the only cell

that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Volvox - a protistIt is the only cell

that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Slime mold - a fungal cellVolvox - a protist

It is the only cell that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Slime mold - a fungal cellVolvox - a protist

It is the only cell that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Slime mold - a fungal cellVolvox - a protist

Elodea - a plant cell

It is the only cell that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Slime mold - a fungal cellVolvox - a protist

Elodea - a plant cell

It is the only cell that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Slime mold - a fungal cellVolvox - a protist

Muscle cells - found in animals

Elodea - a plant cell

It is the only cell that is prokaryotic

Diversity within the biosphereStaph - a bacteria cell

Slime mold - a fungal cellVolvox - a protist

Muscle cells - found in animals

Elodea - a plant cell

It is the only cell that is prokaryotic

Based on their structure, what is the function of these nerve cells?

Based on their structure, what is the function of these nerve cells?

Nerve cells have long projections that send and receive signals.

Just like different cells have different functions based on their structure,

different parts of the cell (organelles) have specificfunctions as well

The cell membrane

The cell membrane

Based on the video, what functions does the cell membrane accomplish for the

cell?

The cell membrane

Based on the video, what functions does the cell membrane accomplish for the

cell?It provides structure, and it helps transport

molecules

The cytoplasm

*The cytoplasm is the liquid and organelles inside the cell.

*Nutrients are dissolved in it.

*Materials the cells needs are also dissolved in the liquid.

The nucleus

Function: It stores DNA (genetic information) in the form of chromosomes

Mitochondria

Mitochondria

How does the structure of this organellerelate to its function?

Mitochondria

How does the structure of this organellerelate to its function?

It converts sugar into ATP through cellular respiration - the folds of the inner membrane increase surface area.

The ribosome

The ribosome

The ribosome

Function:Along with the nucleus and the

endoplasmic reticulum, the

ribosome helps create new

molecules for the cell

(proteins)

Lysosomes

Lysosomes are organelles that containenzymes that help the cell break down waste,

food, and dead cell parts

How is a plant cell different from an animal cell?

Plant cells contain cell walls for structure

They have a cell wall in addition to a cell membrane. It is much more rigid, and it provides a framework for the

cell.

Plant cells contain cell walls for structure

They have a cell wall in addition to a cell membrane. It is much more rigid, and it provides a framework for the

cell.

Plant cells contain chloroplasts

Plant cells contain chloroplasts

Chloroplasts add in photosynthesis by absorbing sunlight

Plant cells contain chloroplasts

Chloroplasts add in photosynthesis by absorbing sunlight

Plant cells contain chloroplasts

Chloroplasts add in photosynthesis by absorbing sunlight

The large central vacuole

has several functions.

It can hold waste, and it helps

maintains a cell’s turgidity.

Plant cells contain chloroplasts

Chloroplasts add in photosynthesis by absorbing sunlight

The large central vacuole

has several functions.

It can hold waste, and it helps

maintains a cell’s turgidity.