Virtual Cell Division Lab Report Instructions: The Virtual Cell Division Lab is on the 03.01 lesson assessment page. On the image, it says “Click Anywhere to Start”. Follow the instructions as you move through the lab. The lab activity will keep count of your data on the right and you can record this into the data table at the end of each trial.

Title:

Objective(s):

Hypothesis:

Data:

Record the number of cells you observed in each part of the lab activity.

Number of Cells in Part 1 Number of Cells in Part 2
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Observations:

Record any observations about the cells you observed. What does the cell look like for each stage? What is a distinguishing visible feature of each stage of the cell cycle?

Description of cell
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Data Analysis:

Part 1: Calculate the percentage of the cell cycle spent in each stage. Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage

Part 2: Using your percentages in part 1 please create a chart that represents the time spent in each stage of the cell cycle.

Insert chart [Hint: don’t forget to consider the relationship between your data and the type of chart to best represent your data]

Conclusion:

Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:

Was your hypothesis correct? Why or why not?
Based on your data, what can you infer about the length of time spent in each stage of the cell cycle?
What stages were the longest and shortest? Give a brief explanation of why these stages may have that time period.

Questions:

Using what you have learned in the lesson and the virtual lab activity, answer the following questions in complete sentences.

What differences can you see when you compare the nucleus of a dividing cell with that of a non-dividing cell?
If your observation had not been restricted to the tip of the onion root, how would the results be different?

Please read through the 'Explanation' section to get the full answer to this lab report, best of luck when completing this.

***DO NOT COPY AND PASTE THIS AS YOU MIGHT GET CAUGHT! SINCE I AM POSTING THIS ANSWER HERE ON THERE IS A GOOD CHANCE SOMEONE HAS ALREADY USED MY WORK WORD-FOR-WORD, SO TRY TO PARAPHRASE AND CHANGE MY WORDING ESPECIALLY STUDENTS ON FLVS***

Explanation:

3.01 Cell Cycle                                                      

NOTE:  This is a virtual lab. On the image, it says “Click Anywhere to Start”.  There will be directions as you go.  The lab activity will keep count of your data on the right and you can copy this into the data table at the end of each trial.

Hypothesis:

What do you predict you will find about the number of cells in each of the phases of the cell cycle during this virtual lab?

I hypothesize that in all of the stages the numbers will be relatively low, under five for each of them except the Interphase. Since interphase takes the longest out of all stages in the cell cycle, I hypothesis that this stage will take the longest when percentages are compared.

Data and Observations:

This is chart #1:

Stage of the cell cycle:Number of Cells found in Part 1:Number of Cells found in Part 2:

Interphase                                                  34                       49

Prophase                                                   8                        13

Metaphase                                                   3                        4

Anaphase                                                   2                        3

Telophase                                                   2                        4

Cytokinesis                                                   1                        3

This is chart #2:

Stage of cell cycle  Description of cell

Interphase The chromatin appears as a tangled mess, there is a single cell pictured.

Prophase       The chromatin condenses, becoming visible as chromosomes.  Spindle fibers have formed. Only one cell in this image.

Metaphase Spindle fibers have now aligned the chromosomes into a row in the middle of the nucleus. Only one cell.

Anaphase The chromosomes pair up, and begin moving to their respective sides of the cell to prepare for separation, only one cell.

TelophaseNew membranes form around the newly divided and paired chromosomes, two cells are beginning to form

Cytokinesis There is now two ‘divided’ daughter cells. A plate forms between them to keep them from splitting apart by ‘pinching’ in order to maintain structure in the plant.

Data Analysis:  

Part 1: Calculate the percentage of the cell cycle spent in each stage. Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage  

I cannot post a pie chart (the chart is part 2) here, but use Word to create a chart using the equation just above, and the numbers found in chart #1, Good luck! :)

Conclusion:  

Based on your data, what can you infer about the length of time spent in each stage of the cell cycle?

Based upon the data I have collected during this virtual lab, I can infer that the length of time used in the ‘Interphase’ step uses the most time. Additionally, I can say that each of the other phases, aside from the ‘Prophase’ step, take a small and almost equal amount of time.

What stages were the longest and shortest? Give a brief explanation of why these stages may have that time period.  

The most time is spent in the Interphase step, and this is because the cell takes this time to prepare for the action of cell division, and it takes time for the necessary protein used in the duplication of organelles to be collected. The stage called ‘Cytokinesis’ is the shortest phase in the cell cycle, only taking up 3% of the total time spent in this process. Cytokinesis is the final step in this process, and it is the action of division of the newly formed daughter cells after all other steps in the cell cycle occur.

What is a distinguishing visible feature of each stage of the cell cycle?

Each phase has a different chromosomes arrangement. Each phase has its chromosomes arranged in a Found in each phase pictured in the Virtual Lab slideshow, each image, or phase displays a different arrangement of chromosomes. Each of the phases in the cell cycle require a specific arrangement of chromosomes in order to function, providing a unique look for each phase (when pictured).

What differences can you see when you compare the nucleus of a dividing cell with the nucleus of a non-dividing cell?

The difference you can see when comparing the two, a dividing and a non-dividing cell, is found when looking at the chromosomes. Within a dividing cell, the chromosomes are visible and can be seen easily, and in a non-dividing cell, these chromosomes are not visible.

THE REST OF THE CONCLUSION IS IN THE COMENTS!

Please paraphrase my work! Academic integrity is serious, especially to those in FLVS at the moment. Good luck!

Part 1: Calculate the percentage of the cell cycle spent in each stage. Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage

34÷ 50*100= 68%

8÷ 50*100= 16%

3÷ 50*100= 6%

2÷ 50*100= 4%

2÷ 50*100= 4%

1÷ 50*100= 2%

Explanation:

just tryna help