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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.
