The Cell Theory Worksheet

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Learning Target Tag: Std 3 Obj1

The Cell Theory

Name:_______________________________________ Date:__________ Class Hour: _______ /

/45Total

Directions: Now that we have spent the past few weeks learning how multi-celled and singlecelled organisms are built we will take a few more weeks to learn about the simplest level, the cell. Cells are the basic unit of life and function for all living organisms. Today you will take a few moments to read in your textbook from pages 61-67 about a theory known as the cell theory.

Using your reading as a guide please answer the questions that follow.

Seeing the First Cells:

1.

How did cells first get discovered?

2.

What does the word

“cell”

mean in Latin?

3.

In the box provided below please draw the “cork cells” that Robert Hook saw.

Seeing Cells in Other Life Forms:

4.

What did Anton Van Leeuwenhoek, a Dutch merchant discover in 1673 using a homemade microscope?

The Cell Theory:

5.

After Hooke first saw the cork cells, almost two centuries passed before anyone realized that____________ are present in all living things.

6.

What did Mathieus Schleiden conclude about cells in

1838

?

7.

What did Theodore Schwann find out in

1839

?

8.

Who wrote the first two parts of the cell theory?

9.

Who wrote the third part of the cell theory in 1858?

10. What does the three parts of the cell theory state?

1.

2.

3.

Cell Similarities:

11. What three things do all cells have in common? a. cell membrane b. hereditary material c. cell parts (organelles) d. cell wall g. a, b, and c e. a nucleus h. c, d and e

Giant Amoeba Eats New York City: f. all of the above i. none of the above

12. How do a Multi-celled organism’s cells grow? How do a Uni-celled organism’s cells grow?

Homework: Please use what you have learned in today’s reading and handout to create a real flow map of events. Please look below for the requirements of your map.

Flow Map Scoring Guide

1. Do you have a creative map title? Yes 5 No 0

2. Do you have all five major contributors’ names? Yes 5 No 0

3. Do you have a short statement or summary describing the Yes 5 No 0 contribution of each scientist to The Cell Theory.

4. Do you have the three parts of The Cell Theory on Yes 6 No 0 your map?

Extra Credit: Did you provide pictures of the 5 scientists on Yes /5 Extra your map? (1 point per picture of each scientist)

_____________________________________________________________________________

Total: /21

The Flow Maps must be stapled to this handout and turned in on …..

Date Due: ____________________________________________________________

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