ENGAGE: Demonstration Presentation 6th Grade

Organisms and Environments

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments

1.  What is a cell?

2.  All living organisms are composed of how many cells?

3.  What cell organelles are in prokaryotic and eukaryotic cells?

4.  How is DNA stored within prokaryotic and eukaryotic cells?

5.  What are other similarities and di!erences between prokaryotic and eukaryotic cells?

Robert Hooke was a well-known scientist who lived during the 1600s. He observed a piece of cork under a microscope and noticed the arrangement of little boxes all in a row. He called these boxes cells because they reminded him of the rooms that monks would stay in.

Hooke started observing other things under the microscope and soon discovered that all living things are made of cells. Non-living things are not made of cells.

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments

1.  Organisms made of only one cell are called unicellular organisms.

2.  Bacteria are unicellular organisms. 3.  Bacteria you are familiar with

include Salmonella, E. coli, and Streptococcus (strep throat). Not all bacteria are bad, though. Bacteria in your stomach and intestines help with digesting of food.

Bacterium

Bacterium

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments

1.  Organisms made of many cells are called multicellular organisms. Plants and animals are multicellular organisms.

2.  Did you know that a person is made of trillions of cells?

3.  Observe the pictures of the plant cells and the animal blood cells.

Plant Cells

Animal Blood Cells

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments

Instructions: 1.  Cells are so small that you

have to use a microscope in order to see them.

2.  Using the microscope, observe the piece of cork.

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments

1.  What does the cork look like?

2.  Is cork living or non-living?

3.  Is the cork unicellular or multicellular?

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments

1.  Read the question and think about the answer.

2.  Turn to the partner next to you and share your answers.

3.  After each person has spoken, collaborate on the best answer.

1.  What did you learn about cells in this demonstration?

2.  What else do you want to know about cells?

3.  Anything else you want to share about this topic?

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments

Now it is time to explore more about prokaryotic cells and eukaryotic cells.

ENGAGE: Demonstration Presentation 6.12AB: Prokaryotic and Eukaryotic Cells

Organisms and Environments