Download Core Lab # 3 – Observing the Cell Cycle

Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Student Instruction Sheet and Lab Template
Instructions
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Open your book and read pages 466 – 467.
Follow the procedure and safety guidelines as outlined in the book.
Answer the questions and make your drawings as outlined in the procedure.
Use the template below to record your drawings and/or answers to questions.
Submit the completed Lab with the following name “B3Lab3_Cellcyle_yourname”
Save it as a pdf document.
Background for observing plant cells in a root tip
Plants constantly undergo active mitosis within the tips of their roots. However, to
observe cells in mitosis, one does not look at the tip of the root. Rather, we look at the
group of cells just behind the root tip. It is here that cells are dividing to replace cells
lost/damaged at the root tip as the root tip moves through the soil in search of water.
When completing this lab, be sure to observe the cells behind the root tip to find cells in
active mitosis. USE THE PICTURE BELOW TO GUIDE YOU!
Biology 3201 – Unit 2 – Core Labs
Page 1
Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Pre-lab Questions
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Answer the pre-lab questions from page 466 here.
What are the differences between plant and animal cells?
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How might these differences affect the stages of mitosis?
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Prediction
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Answer the prediction question from page 466 here.
Are there any differences between mitosis in plant and animal cells? If you think
there are, predict the ways in which you will observe differences.
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Biology 3201 – Unit 2 – Core Labs
Page 2
Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Procedure
Complete diagrams as outlined in procedure part 2.
Prophase (plant cell)
Magnification: ______________
Metaphase (plant cell)
Magnification: ______________
Biology 3201 – Unit 2 – Core Labs
Page 3
Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Anaphase (Plant Cell)
Magnification: ______________
Telophase (Plant Cell)
Magnification: ______________
Procedure Continued
Draw diagrams from procedure Part 5 here.
Biology 3201 – Unit 2 – Core Labs
Page 4
Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Prophase (Animal Cell)
Magnification: ______________
Metaphase (Animal Cell)
Magnification: ______________
Biology 3201 – Unit 2 – Core Labs
Page 5
Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Anaphase (Animal Cell)
Magnification: ______________
Telophase (Animal Cell)
Magnification: ______________
Biology 3201 – Unit 2 – Core Labs
Page 6
Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Post – Lab Questions
1.
Answer questions 1 – 3 on pages 466 – 467
Describe any differences you noticed in the cells behind the root tip, compared
to those in the tip.
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2.
What other parts of an onion plant might be used to study mitosis?
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3.
What processes are occurring during Interphase?
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Biology 3201 – Unit 2 – Core Labs
Page 7
Core Lab # 3 – Observing the Cell Cycle
Biology 3201
Student Name: ____________________________
Conclude and Apply Questions
4.
Answer question 4 on page 467
What differences did you notice between the onion root tip cells and the
whitefish embryo cells that were dividing in:
a) The size of the cells
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b) The shape of the cells
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c) The chromosomes in the cells.
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Biology 3201 – Unit 2 – Core Labs
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