Onion Cell Mitosis Worksheet Answers
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Onion Cell Mitosis Worksheet Answers

1 mitosishomework 12 20
&#x/M00; 00;� 00;&#x/M00; 00;� 00;5.The drawing below has been made from______________________ 6.The drawings A-E show stages of mitosis in an plant cell.

(a) Which of the drawings A -E shows

(i) interphase ________ (DNA is replicated)

(ii) prophase ________ (chromosomes – 2 sister chromatids – shorten)

(iii) metaphase ________ (sister chromatids line up)

(iv) anaphase ________ (sister chromatids separate)

(v) telophase ________ (new nucleus forms at each end)

(vi) cytokinesis ________ (cell contents divided between 2 daughter cells)

(b) Give two processes which occur during interphase and which are necessary for nuclear division to take place.

SW Science 10 Mitosis WS Page 2 of 3

&#x/M00; 00;� 00;&#x/M00; 00;� 00;7.This drawings shows various stages .Using colored pens or pencils, show how 2 chromosomes are passed from mother cell 9.Now answer 1.2.1 Review Questions

Mitosis Worksheet

Name: Date: ____________

1.Label the following diagram of mitosis of an animal cell.
2.During which stage of a cell’s cycle do the replicated chromosomes thicken and

Mitosis Worksheet

Name: Date: ____________ 1.Label the following diagram

2.During which stage of a cell’s cycle do the replicated chromosomes thicken and

&#x/M00; 00;� 00;&#x/M00; 00;� 00;5.The drawing below has been made from______________________ 6.The drawings A-E show stages of mitosis in an plant cell.

(a) Which of the drawings A -E shows

(i) interphase ________ (DNA is replicated)

(ii) prophase ________ (chromosomes – 2 sister chromatids – shorten)

(iii) metaphase ________ (sister chromatids line up)

(iv) anaphase ________ (sister chromatids separate)

(v) telophase ________ (new nucleus forms at each end)

(vi) cytokinesis ________ (cell contents divided between 2 daughter cells)

(b) Give two processes which occur during interphase and which are necessary for nuclear division to take place.

&#x/M00; 00;� 00;&#x/M00; 00;� 00;7.This drawings shows various stages .Using colored pens or pencils, show how 2 chromosomes are passed from
&#x/M00; 00;� 00;&#x/M00; 00;� 00;7.This drawings shows various stages 8.

Using colored pens or pencils, show how 2 chromosomes are passed from
Mitosis Worksheet

Name: Date: ____________ 1.Label the following diagram

2.During which stage of a cell’s cycle do the replicated chromosomes thicken and

&#x/M00; 00;� 00;&#x/M00; 00;� 00;5.The drawing below has been made from______________________ 6.The drawings A-E show stages of mitosis in an plant cell.

(a) Which of the drawings A -E shows

(i) interphase ________ (DNA is replicated)

(ii) prophase ________ (chromosomes – 2 sister chromatids – shorten)

(iii) metaphase ________ (sister chromatids line up)

(iv) anaphase ________ (sister chromatids separate)

(v) telophase ________ (new nucleus forms at each end)

(vi) cytokinesis ________ (cell contents divided between 2 daughter cells)

(b) Give two processes which occur during interphase and which are necessary for mitosis to take place.

&#x/M00; 00;� 00;&#x/M00; 00;� 00;7.This drawings shows various stages 8.Using colored pens or pencils, show how 2 chromosomes are passed from
Mitosis Worksheet

Name: Date: ____________ 1.Label the following diagram

2.During which stage of a cell’s cycle do the replicated chromosomes thicken and

&#x/M00; 00;� 00;&#x/M00; 00;� 00;5.

The drawing below has been made from______________________ 6.The drawings A-E show stages of mitosis in an plant cell.

(a) Which of the drawings A -E shows

(i) interphase ________ (DNA is replicated)

(ii) prophase ________ (chromosomes – 2 sister chromatids – shorten)

(iii) metaphase ________ (sister chromatids line up)

(iv) anaphase ________ (sister chromatids separate)

(v) telophase ________ (new nucleus forms at each end)

(vi) cytokinesis ________ (cell contents divided between 2 daughter cells)

(b) Give two processes which occur during interphase and which are necessary for mitosis to take place.

&#x/M00; 00;� 00;&#x/M00; 00;� 00;7.This drawings shows various stages 8.Using colored pens or pencils, show how 2 chromosomes are passed from.
18173
Biology 820
Name Chapter 10:

Cell Division
Worksheet 10 5A:

Cell cycle Webquest Instructions

Date _______________________ Period ________

To begin your webquest, go to the web address Click on the first link, DNA BASICS.Answer questions 1 2 on your worksheet. At the bottom of the page, click on NEXT that will take you to the CELL CYCLE page.Answer questions 3 5 on the worksheet.

At the bottom of the page, click on NEXT that will take you to the MITOSIS

page.

Read about mitosis, answer questions 6 9 on the worksheet and click on either of the animation links at the bottom of the page (either one, as they When you have finished this section, click on the NEXT TEST YOURSELFDo only # 1, 3, 4, 6, 7, 8, and 11.

Record your answers on the worksheet.

(Question 10). Go to the website You can scroll down the page to see the onion cell pictures at various stages of mitosis.

These are the same things we saw on our slides in the lab.

Go pack to the top of the page and click on the link that says mitosis interactive Java tutorial (right below the main onion cells picture).

Read the entire tutorial, then answer questions 11 13.

Go to the site > Watch the animation.Go though it using the STEP button first and once you have gone all the way through, then use the PLAY mode.

Notice that you are seeing an animation of an actual photographed cell (in the upper left) going through mitosis, as well as a diagram.You should also notice the cursor on the right identifying each of the phases of mitosis being shown in the diagram.

Answer questions 14 15 on the worksheet

Go to the next site below which is on the Cell cycle.

Play the animation using the BASIC ANIMATION

choice, read the information on the webpage below the movie and answer questions 16 20 > Now watch the animation again, this time in the CHECKPOINT mode.

Answer question 21
onion cell mitosis worksheet answers
. Go to the site below: > Compare the microphotographs of the plant cells and animal cells during the various stages of mitosis.

Answer question 22 - 23

Go to the site Read the assignment on your worksheet and then begin the activity.

Look at the cell pictured.Click on the phase you think is shown.

You will find out if your answer is correct.

If it is, place a mark in the table on your worksheet.

If not correct, try again until you get the right answer and record it in the table.

Continue until you have identified all 36 cell views corrected.

Finish the activity on the worksheet..

Cell cycle and mitosis grade 7 biology
:: Search AboutSNL Email I @Benchrnarks 5C Cells #2 Cells repeatedly divide to make more cells for growth and repair....students should Lesson 8: Mitosis: Chromosome Replication & Division Figure 12.Telophase Telophase $4\ 4 $$4 two daughter cytokinesis 2.These daughter cells are now entering the early interphase stage.

Pretend that your Triffle chromosomes are becoming extended.The cells will grow to full size and, if continuing to divide, will replicate their chromosomes, and repeat the cycle again.a.Does the parent cell still exist? b.How are these daughter cells related to one another'? c.How are these daughter cells related to the parent cell? d.Overall, what has been accomplished by mitosis? e.You have used your materials to model mitosis(nuclear division) and cellular division.Explain some ways in which a model differs from the actual things and processes it represents.iT #*;:::,;5 1.9.Practice through Repetition 12/4/2007 11 :23 A 90f13 Lesson 8: Mitosis: Chromosome Replication & Division a.

How many replicated chromosomes are on the metaphase plane in the Triffle? b.How many replicated chromosomes would be on the metaphase plane in a human cell undergoing mitosis? 1.6.Anaphase of Mitosis ToDo 1.In anaphase, sister chromatids separate to become daughter chromosomes(Figure 11).Separate your sister chromatids to form daughter chromosomes.Figure 11.Anaphase Anaphase 2.Daughter chromosomes are moved toward opposite poles by the spindle fibers.Chromatids are flexible.They do not remain rigid, but rather bend on each side of the centromere as they are dragged through the cytoplasm.a.Are the daughter chromosomes replicated or unreplicated? b.Are the two sets of daughter chromosomes, the one moving toward the left and the other toward the right, identical or non-identical? c.

Are the two sets of daughter chromosomes identical to those in the parent ceIl? d.What is accomplished by this process? 't?l! .; g: ; ...4 in 1.7.Telophase of Mitosis ToDo 1.

Daughter chromosomes reach the poles ofthe cell and become extended (relaxed).The spindle fibers disappear actually, the microtubulin SUbunits are disassembled.You can remove your spindle fibers from your cells and pretend your chromosomes are going into the extended state.2.Two new nuclear membranes form, one around each set of daughter chromosomes.Use the nuclear membrane yam to create two new nuclear membranes in your cell (Figure 12).Pinch in the yam representing the cell membrane.

12/4/200711:23 A 8 of 13 Lesson 8: Mitosis: Chromosome Replication & Division &#x/M00; 00; 00;&#x/M00; 00; 00;1.4.

&#x/M00; 00; 00;&#x/M00; 00; 00;Prometaphase of Mitosis &#x/M00; 00; 00;&#x/M00; 00; 00;ToDo 1.In prometaphase, the nuclear membrane literally "disappears", which allows the rest of the mitotic events to occur.Remove the nuclear membrane from around the chromosomes in the nucleus ofyour cell.&#x/M00; 00; 00;&#x/M00; 00; 00;2.

&#x/M00; 00; 00;&#x/M00; 00; 00;Spindle fibers fmm, emanating from two structures called _i / centriole Pro me tep hese 1.5.Metaphase of Mitosis 1.In metaphase, replicated chromosomes are lined up on the metaphase plane (across the center of the cell) by the spindle (Figure 10).Homologous chromosomes are independent of one another.

That is, homologous replicated chromosomes such as the two sets ofreplicated spoons ARE NOT PAIRED.Figure 10.Metaphase Metaphase

ntriole To Do 2.Arrange your Triffle chromosomes across the center ofthe cell.The specific order of chromosomes and their orientation (right side up, upside down) is completely random.12/4/200711:23 A70f13 Lesson 8: Mitosis: Chromosome Replication & Division a.What is a chromatid made of (protein, carbohydrate, lipid, and/or DNA)? b.How do sister chromatids differ from chromosomes? c.

What is the centromere? d.Contrast extended and condensed chromosomes.1 J,!2 6 '" 1.3.Prophase of Mitosis To Do 1.

In prophase, the replicated chromosomes condense and become visible (Figure 8).This is the first stage ofmitosis.

8.Prophase centromere Prop h8.1l e a.Are the two sister chromatids that are connected by a centromere identical to one another or do they contain difIerent alleles? Explain.

b.As noted above, these structures are called replicated chromosomes (or, in many books, simply chromosomes).Replicated chromosomes are quite different from the umeplicated chromosomes seen earlier.Compare replicated chromosomes to unreplicated ones (by filling in the blanks below).(1) the amount of DNA in a replicated chromosome is__times the anl0unt of DNA in an unreplicated chomosome (2) the number of copies ofeach gene in a replicated chromosome is __times the number of copies in an unreplicated chromosome (3) each replicated chromosome contains __ (insert number) complete copies ofgenetic inf (4) the copies of genetic information in each chromosome are (identical, homologous, or complementary) c.Do you think that the homologous replicated chromosomes (the two pairs of knives, the two pairs of forks, and the two pairs ofspoons) will pair with one another during mitosis? Explain.

d.How many sister chromatids are in your Triffle nucleus in prophase? e.

A diploid human cell contains 46 unreplicated chromosomes in early interphase.How many sister chromatids will be present in the human cell during prophase of mitosis? A" 2 tg!!!!! W

Wk,,;= d & &2 12/4/2007 11 :23 A 60f13 Lesson 8: Mitosis: Chromosome Replication & Division (choose the best response) (1) they are the same size and shape (2) they contain the same types of genes in the same order (3) they generally contain different versions (alleles) of many of their genes (4) all of the above g.Define homologous chromosome.h.Contrast gene and allele.1.2 Interphase and Chromosome Replication ToDo 1.

Throughout interphase, t
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