Most cells are too small to see With the naked eye. Scientists became aware of Cells only after...

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Transcript of Most cells are too small to see With the naked eye. Scientists became aware of Cells only after...

Page 1: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 2: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
http://uhaweb.hartford.edu/BUGL/images/RBCs.jpg
Page 3: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Most cells are too small to seeWith the naked eye.

Scientists became aware of Cells only after microscopes Were invented, in the 1600’s.

When the English scientist Robert Hooke used a crude Scope, he saw a bunch of Little boxes he called cells.

Page 4: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Robert Hooke (1635-1703)

Page 5: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

10 years after Hooke, AntonVan Leeuwenhoek used a Microscope to view pond Water, and saw tons of

Tiny animals.

Today we know that they are Not animals, but single cell

Organisms.

Page 6: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Leeuwenhoek

Page 7: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 8: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Since Robert Hooke 1st Observed cells, microscopes

Have unveiled the details Of cell structure.

There are 2 common kinds ofMicroscopes…

Light microscopes &Electron microscopes

Page 9: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

In a light microscope, light Passes through one or more

Lenses to produce an Enlarged image of something.

An electron microscope forms An image of a specimen usingA beam of electrons instead

Of light.

Page 10: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 11: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 12: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Magnification is the ability toMake an image appear larger.

For example, a magnificationValue of 200X indicates that The object is 200 times its

Actual size.

Page 13: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Resolution is a measure of Clarity of an image.

Both high magnification andGood resolution are needed

To view items clearly.

Page 14: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Light microscopes that have2 lenses are called compound

Light microscopes.

The two lenses are called theObjective and the ocular.

Page 15: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The objective lens is the oneClose to the specimen.

The ocular lens is the one thatYou put your eye on.

Both lenses magnify the image.

To find the total power of theLenses, you multiply the

Power of each lens.

Page 16: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The most powerful light Microscopes magnify up to

2000 times (0.5 μm).

To see past this point you Would have to go to college and

Use the electron microscope.

Page 17: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

It took scientists more than 150Years to fully appreciate the

Discoveries of Hooke andLeeuwenhoek.

Page 18: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

In 1838 the German botanistMattias Schleiden concluded

That cells make up Entire plants.

Page 19: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 20: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

A year later, the German Physician Theodor Schwann Concluded that all animals

Are made up of cells.

Page 21: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Rudolf Virchow stated that All cells come from other cells.

Page 22: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

All of these studies combined To form the cell theory, Which has three parts…

All living things are composed of one or more cells

Cell are the basic units of structure and function

All cells come from preexisting cells

Page 23: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

All cells have the same Common features…

Cell membrane = outer boundary

Nucleus = “center” command center

Cytoplasm – everything between the cell membrane and nucleus

Page 24: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

All cells also have ribosomes Which are where proteins

Are made.

All of them also have DNA thatProvide instructions on how

Everything is made and done.

Page 25: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 26: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The smallest and simplest cellsAre prokaryotes.

Prokaryotes are single celledOrganisms that lack a nucleus

And other internal stuff.

Bacteria are prokaryotes.

Page 27: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The DNA of a bacteria is Circular and just floating around

In the cytoplasm.

All bacteria have a cell wall.

Some bacteria are also enclosedIn a capsule which allows them

To stick to almost anything.

Page 28: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Many bacteria have flagella,Which are long, threadlike

Structures that enable themTo move around.

Page 29: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Eukaryotic cells are cells thatHave a nucleus.

The nucleus is where the DNA is held.

These cells have many organelles.

An organelle is a structure thatCarries out specific activities.

Page 30: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Many single celled organismsHave cilia that work likeFlagella. (they can also

Have flagella)

http://upload.wikimedia.org/wikipedia/commons/3/39/Bronchiolar_epithelium_3_-_SEM.jpg
Page 31: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 32: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The cytoplasm and organellesOf a cell are contained by

Its membrane.

The membrane is made up ofLipids that stick together.

Phospholipids are lipids that areMade up of a phosphate group

And 2 fatty acids.

Page 33: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Same in plants, animals and microorganisms

Lipid bilayer

Page 34: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

electron micrograph of a cell membrane at approx. 240,000x

Page 35: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 36: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Most all of the eukaryotic Cell functions are controlled

By the cell’s nucleus.

Unlike prokaryotic cells, Eukaryotic cells have a

System of internal organelles.

Page 37: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The endoplasmic reticulum,Or ER, is an extensive systemOf internal membranes that

Move proteins and other Substances through the cell.

Page 38: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 39: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The ER is broken into 2 parts,Smooth and Rough.

The rough ER has ribosomesAttached to it and the

Smooth does not.

Page 40: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 41: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The Golgi apparatus is a setOf flattened, membrane Bound sacs that serve as

The packaging and Distribution center of the cell.

Page 42: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 43: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Lysosomes are small organellesThat contain the digestive

Enzymes for the cell.

Page 44: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Nearly all eukaryotic cells Have mitochondria.

Mitochondria are organelles That harvest energy fromOrganic compounds to

Make ATP.

Page 45: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Mitochondria have their ownDNA and ribosomes.

It is widely accepted that Mitochondria were once

Prokaryotes that got sucked Into eukaryotes and stayed.

Page 46: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 47: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Plant cells are eukaryoticCells that have different parts

Than animal cells.

They have cell walls, Chloroplasts and central

Vacuoles.

Page 48: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

A cell wall supports and Protects the cell and allows

Plant cells to be stackedOn top of each other.

The cell wall is made up of Proteins and polysaccharides.

We (humans) cannot digestCell walls.

(fiber)

Page 49: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
http://micro.magnet.fsu.edu/cells/plants/plantmodel.html
Page 50: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Chloroplasts are organelles That use light energy to

Make carbohydrates From carbon dioxide

And water.

Page 51: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
Page 52: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

The central vacuole is a largeMembrane bound space that

Stores water and many Substances including ions,

Nutrients and wastes.

When the vacuole is full, it Presses the cytoplasm againstThe cell wall, making the cell

Very rigid.

Page 53: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.
http://micro.magnet.fsu.edu/cells/plants/plantmodel.html
Page 54: Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

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