Cell Variety Summative Lab revised PDF

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Summary

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Exploration and Discovery

Self Check: Check off each section below as you complete, and as you compare to the rubric

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Complete? Includes all rubric requirements?

Case Study Summative Lab for Unit 2: Biochemistry of Cell Structure As a Problem Question: Which cellular structures do plant and animal cells have in common, and which structures are specific to plants or animals? In other words, how are plant and animal cells similar, and how are they different? List your recourses:  Prepared Elodea Slide  Live Elodea  Prepared Oral Smear Slide  Prepared Amoeba Protista Slide ENL application: Below I have listed the Learning Goals for this unit. Below each learning goal, describe in detail how that learning goal is applies to this problem 1. I can identify structures within plant and animal cells This applies to the problem because I am comparing the ways that plant and animal cells are similar. 2. I can use drawing to represent patterns in cellular structure This applies to the problem because my data is drawings and I must find what is common between plant and animal cells.

Testing Ideas

3. I can differentiate between plant and animal cells This applies to the problem because I need to know what structures make plant and animal cells different.

Box 1  Complete?  Includes all rubric requirements?

Predict an Answer or Propose a Solution: Complete this box before you collect any data! This should include:  Make a prediction: What is the answer to the question “Which cellular structures do plant and animal cells have in common, and which structures are specific to plants or animals?”

I think cytoplasm, mitochondria, cell membranes, nucleus, and ribosomes are common to plant and animal cells. I think that only plants have cell walls and cytoplasts and that only animals have cell membrane and I also think that animals only have vacuoles.

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Base your prediction on scientific observation: What observation lead you to that answer or solution? I know that cytoplasts make the plants food. Based off notes I know that ribosomes make proteins which is necessary to both plant and animal cells. Mitochondria are the “powerhouses” of the cells so I can assume that they are common between both. In previous years of science, I learned that eucaryotic cells have a nucleus and cell membranes and I learned that only plans have cell walls. Plant and animal cells contain cytoplasm.

Box 2  Complete?  Includes all rubric requirements?

DO the experiment or IMPLEMENT the solution!  Describe how to design your experiment/solution: describe how you collected our data! Be sure to mention what you changed, and how you recorded your data.

To test my data, I drew several cells, a human cheek cell, red onion cell, elodea leaf cell, and an amoeba Protista cell. I recorded the structures in each cell and labeled them accordingly. I noticed that plants do in fact have vacuoles just like animals and my prediction was wrong in that sense. I also noticed that not all plants have chloroplasts. This was evident in the red onions because they grow underground. I was right when I said only plants have chloroplasts and cell walls.

 Control for outliers and mistakes: How did you ensure valid results? I can ensure valid results by making sure my drawings and labels are accurate. I did this by comparing the drawings and labels to the internet.

Box 3  Complete?  Includes all rubric requirements?

Provide Visuals of Data to support:  Attach a photograph of each of your drawings to the assignment to satisfy this section

Box 4  Complete?  Includes all rubric requirements?

Describe how the visual above supports your conclusion/solution: Include three things:  Describe the similarities between your plant and animal drawings Something common between the cheek cell and the Elodea leaf is cytoplasm. The onion cell and Elodea leaf both have a cell wall, vacuoles, and cytoplasm. The amoeba Protista has a nucleus and cell membrane along with the cheek cells. The amoeba has cytoplasm just like the plant cells and cheek cell. The cheek cells and the onion cell both contain a nucleus and cytoplasm.

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Describe the differences between your plant and animal drawings

There are many differences between the drawings. The red onion cells have a nucleus instead of chloroplasts which the leaves contain. The vacuoles in the onion and the cytoplasm in the Elodea are not structures in the cheek cells. The animal cells do not have cell walls that were found in both the plant cells. Instead of a cell wall the animals have cell membrane. The cheek cells and Amoeba Protista are the only cells with cell membrane which proves that only animal cells contain cell membrane. 

Call out any difficulties with your data recording. The Elodea cells were harder to draw than the others in my opinion. Also, it was sometimes difficult to see each individual organelle through the video.

Community Analysis and Feedback nd Benefits

Box 5  Complete?  Includes all

rubric requirements?

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Complete? Includes all rubric requirements?

Draw Conclusions or Evaluate the Solution to the Problem Question: This should include: Make a claim: What is the answer to the question, “Which cellular structures do plant and animal cells have in common, and which structures are specific to l i l ?” Peer Review: Get a peer to look over your answers to box 1-5 above, then fill out this box. Reviewer’s Name:__Sophia Wood_____________________________________________________________________ Positives: What did they do well? Make two positive, helpful comments about their solution. 1. They were able to make good observations about the cells.

2. Did a good job explaining each section. Constructive: What can be improved? List at least two issues that you see with the solution or answer they wrote. Focus how well they represented the patterns in their drawings, and if they correctly called out all similarities and differences. 1. Could add a little more detail to some of the sections that didn’t have more than a sentence or two.

2. Add pictures for evidence.

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Complete? Includes all rubric requirements?

Redesign: Use your peer’s comments to adjust your conclusions or design.  In your next version of this experiment, or the next time you attempt this solution, what will you change?

I will add a lot more detail throughout the sections....