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Journal Question 13 Nov 2012. Do all cells look alike? Give some examples of how they are different. Why might some cells be different from others?. Mystery Cells. Day 1. The situation.

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Do all cells look alike give some examples of how they are different

Journal Question

13 Nov 2012

  • Do all cells look alike?

  • Give some examples of how they are different.

  • Why might some cells be different from others?


Mystery cells

Mystery Cells


Do all cells look alike give some examples of how they are different

Day 1


The situation

The situation

  • Police contacted the administration of Westwood Middle School early this morning. A dead body was found in the field behind our school. Investigators are asking for our cooperation to help solve the crime.


The situation1

The situation

Interview with the medical examiner

  • “ We found no external marks on the body, suggesting no physical trauma. We did, however, recover some unique cells from inside the body that have been saved for analysis. Before we can determine what exactly they are, we need to decide whether or not they belong to a plant or animal species.”


The situation2

The situation

Research

  • In order for you to be of assistance to the police department, you need to learn more about cells, and the differences between them.


You will look at all of the slides but y ou only have to draw 6

Use the classroom microscopes to view slides of different cells.

You will look at ALL of the slides,

BUT…

you only have to draw 6.


Do all cells look alike give some examples of how they are different

Microscopes

  • Write down the number of the slide/microscope you are looking at.

  • Using the circles on your worksheet, draw a picture of what you see.

  • Make a prediction - Is it a plant OR animal cell? Circle one!


Do all cells look alike give some examples of how they are different

Day 2


Do all cells look alike give some examples of how they are different

  • You are an animal.

  • An onion is a plant.


Do all cells look alike give some examples of how they are different

Animal Cell

(Human Cheek)


Do all cells look alike give some examples of how they are different

Plant Cell

(Onion)


Do all cells look alike give some examples of how they are different

When you are finished with your drawings, you should:

Look on page 68-69 of your textbook and writing down 5 observations EACH about plant and animal cells.


Do all cells look alike give some examples of how they are different

Reflection

Left-hand page

Now that you know a little more about the differences between plant and animal cells, look back at your worksheet from day 1.

  • In your science notebook, write down each number that you looked at.

  • Using what you’ve learned, write whether it is a plant or animal cell AND why.


Do all cells look alike give some examples of how they are different

  • JOURNAL QUESTION

  • 14 Nov 2012

  • What were several differences you observed between plant and animal cells?


Do all cells look alike give some examples of how they are different

Reflection

Left-hand page

Now that you know a little more about the differences between plant and animal cells, look back at your worksheet from day 1.

  • In your science notebook, write down each number that you looked at.

  • Using what you’ve learned, write whether it is a plant or animal cell AND why.

    Example: #34 = Plant because it has a large central vacuole.


The situation3

The situation

Review-Organization

What have you learned/noticed about the organization of plant and animal cells?

Animal:

  • Often irregular or clumped

    Plant:

  • Very organized or ordered, stacked on top of one another, rows


The situation4

The situation

Cheek Cells Elodea


The situation5

The situation

Cheek Cells Onion


The situation6

The situation

Review- Structures

What structures do plant cells have that animal cells do not? (HINT: Look at the diagrams on pgs. 68-69)

Plant:

Copy this table into your science notebook


The situation7

The situation

Your task

  • The medical examiner has attached a copy of the microscopic views of the cells found within the dead body. Please draw them in your science notebook and write 5 observations (BE SPECIFIC!)


Do all cells look alike give some examples of how they are different

Invading cells

Human body cells


The situation8

The situation

Your task

  • Next, submit your findings in a letter to the police department for formal review.

    *Remember, this is a professional document!*

    Make your claim AND support it with evidence!!!

    *Use page #44 In your ISN (Left)*


Do all cells look alike give some examples of how they are different

ATTN: SLP Police Department

I have some information to add to your case regarding the recent discovery of a dead body behind Westwood Middle School. It is my belief that . . .


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