Mrs. Deringer

The Cell

" The basic unit of structure and function of LIFE"

 

The basic units of structure and function of ALL living things are cells. The theory is one of the major theories in science because it tells the most important description of a cell. It is also very important because it was not observations of one person, but many scientists. Some of them were Schleidan, Schwann, and Virchow.
The cell theory is…
1. All organisms are made up of cells.
2. Cells are the basic unit of structure and function in all organisms.
3. All cells come from cells that already exist.

The tiny structures found inside a cell are called organelles.But what makes something living??? Click Here to learn about Living and NonLiving things. Then answer the questions on the corresponding page in your lab book.

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Robert Hooke discovered the cell while looking at a thin slice of cork. He called it a cell because they reminded him of cell blocks like tiny rooms. Had he named them after himself, then our bodies would contain trillions of "hookes" instead of cells. Click on the picture of the cork on the left to learn more about Robert Hooke.
Anton Van Leeuwenhoek discovered unicellular organisms, which are organisms like paramecium, amoebas, and bacteria. These organisms are made up of only ONE cell. He discovered them while looking a sample of pond water under the microscope. Click on the picture on the right to watch unicellular organisms in action . So cool!!!

Below are pictures of some of the cells we saw under the microscope.

Try to guess the type of cell.

slice of onion  

paramecium  

bacteria   

elodea leaf  

paramecium  

frog's blood   

 

frog's blood   

cheek cell  

bacteria

red blood cell   

elodea leaf  

paramecium

Click on the TV to watch my powerpoint movie on the introduction to cells.

This powerpoint will help you understand what cells are, how many cells you are made of, the differernt types of cells, the levels of organization in living things, and complete the homework assignment.

 

Click on the TV to watch the powerpoint movie on the plant cell lab and animal cell labs. The slides show what you should have seen.

You can use this powerpoint to help you complete the lab we did on plant cells and animal cells.

Click on the TV to watch the plant cell movie

You can use this movie to help you answer station 7's questions in the plant cell lab.

Click on the TV to watch the animal cell movie

You can use this movie to help you answer station 7's questions in the animal cell lab.

Levels of Organization in living things Examples
Cell - basic unit and structure of all living things red blood cell, skin cell . . . .
Tissue - many cells working together muscle tissue, lung tissue . . . ..
Organ - many different tissues working together heart, lungs, kidneys, intestines . . . .
Organ system - many different organs working together respiratory sysytem, circulatory system, digestive system . . . .
Organism - many organ system working together ME and YOU

 

 

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