Cell cycle worksheet focusing on mitosis stages and key cellular structures.
Cell cycle worksheet with two sections: Part A matches mitosis stages to descriptions, and Part B fills in blanks about cell division processes.
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Step-by-step solution for: Solved CELL CYCLE WORKSHEET Name: PART A: MITOSIS Matching ...
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Show Answer Key & Explanations
Step-by-step solution for: Solved CELL CYCLE WORKSHEET Name: PART A: MITOSIS Matching ...
Here's the complete solution to your Cell Cycle Worksheet, with explanations for each answer.
---
## ✔ PART A: MITOSIS MATCHING
Match the term (A–E) to the description:
A. Prophase
B. Interphase
C. Telophase
D. Metaphase
E. Anaphase
---
1. E. Anaphase — *The sister chromatids are pulled apart.*
→ In anaphase, spindle fibers pull sister chromatids to opposite poles.
2. A. Prophase — *The nuclear membrane begins to fade from view.*
→ Nuclear envelope breaks down during prophase.
3. C. Telophase — *A new nuclear membrane is forming around the chromosomes.*
→ Telophase is when nuclei reform around separated chromosomes.
4. B. Interphase — *The cell is not dividing.*
→ Interphase is the “resting” phase where the cell grows and replicates DNA — no division occurs yet.
5. A. Prophase — *The chromosomes become visible.*
→ Chromatin condenses into visible chromosomes during prophase.
6. D. Metaphase — *The chromosomes are located at the equator of the cell.*
→ Chromosomes align at the metaphase plate (equator).
7. C. Telophase — *The centrioles begin to fade from view.*
→ Centrioles are less visible as mitosis ends; they disassemble or move away.
8. C. Telophase — *The cleavage furrow appears.*
→ Cleavage furrow forms in animal cells during telophase to begin cytokinesis.
9. E. Anaphase — *The chromosomes are moving towards the poles of the cell.*
→ Sister chromatids (now called chromosomes) are pulled apart toward poles.
10. B. Interphase — *The DNA is replicated.*
→ DNA replication happens in S phase of interphase.
11. A. Prophase — *The spindle fibers are formed.*
→ Spindle apparatus begins to form from centrosomes during prophase.
12. B. Interphase — *Chromosomes are not visible.*
→ Chromatin is diffuse; chromosomes only become visible in prophase.
13. C. Telophase — *The phase just before cytokinesis.*
→ Telophase ends mitosis; cytokinesis follows immediately after.
14. D. Metaphase — *Centromeres attach to spindle fibers.*
→ During metaphase, chromosomes line up and centromeres attach to spindle fibers from both poles.
---
## ✔ PART B: FILL IN THE BLANK
Some terms will be used more than once.
A. Prophase
B. Interphase
C. Telophase
D. Metaphase
E. Anaphase
F. Centromere
G. Chromatid
H. Cytokinesis
I. Mitosis
J. Spindle fibers
K. Cell plate
L. Centrioles
---
18. C. Telophase — *What phase are daughter cells in as a result of mitosis?*
→ At the end of telophase, two daughter nuclei exist; cells enter interphase next.
19. E. Anaphase — *During which phase of mitosis do centromeres divide and the chromosomes move toward their respective poles?*
→ Centromeres split in anaphase, allowing chromatids to separate.
20. A. Prophase — *What is the phase where chromatin condenses to form chromosomes?*
→ Condensation begins in prophase.
21. F. Centromere — *What is the name of the structure that connects the two chromatids?*
→ The centromere holds sister chromatids together.
22. G. Chromatid — *In a double-stranded chromosome, what is each individual DNA molecule called?*
→ Each strand is a chromatid; together they make one chromosome.
23. I. Mitosis, H. Cytokinesis, B. Interphase — *What are the three major parts of cell division?*
→ Interphase (preparation), Mitosis (nuclear division), Cytokinesis (cytoplasmic division).
*(Note: Sometimes "cell division" refers only to mitosis + cytokinesis, but since interphase is included in the cell cycle and necessary for division, it’s often grouped here.)*
24. J. Spindle fibers — *What structures form in prophase along which the chromosomes move?*
→ Spindle fibers guide chromosome movement.
25. D. Metaphase — *Which phase of mitosis is the last phase that chromatids are together?*
→ Chromatids are still attached at centromeres until anaphase begins.
26. B. Interphase — *Which phase of the cell cycle is characterized by a non-dividing cell?*
→ Interphase = growth and DNA synthesis, not active division.
27. L. Centrioles — *What structures do the spindle fibers radiate from?*
→ In animal cells, spindle fibers radiate from centrioles (centrosomes).
28. K. Cell plate — *What forms across the center of a plant cell during cytokinesis?*
→ Plant cells form a cell plate (from Golgi vesicles) to divide cytoplasm.
29. B. Interphase — *The period of cell growth and development between mitotic divisions?*
→ Interphase includes G1, S, G2 — all growth and prep phases.
30. H. Cytokinesis — *What is the division of the cytoplasm and cell membrane that follows telophase?*
→ Cytokinesis physically splits the cell into two daughter cells.
---
## 📌 FINAL ANSWER KEY:
1. E
2. A
3. C
4. B
5. A
6. D
7. C
8. C
9. E
10. B
11. A
12. B
13. C
14. D
18. C
19. E
20. A
21. F
22. G
23. I, H, B *(or any order — Mitosis, Cytokinesis, Interphase)*
24. J
25. D
26. B
27. L
28. K
29. B
30. H
---
✔ You’re all set! This covers the full cell cycle and mitosis process with accurate matching and fill-ins. Let me know if you’d like diagrams or mnemonics to remember the phases!
---
## ✔ PART A: MITOSIS MATCHING
Match the term (A–E) to the description:
A. Prophase
B. Interphase
C. Telophase
D. Metaphase
E. Anaphase
---
Answers & Explanations:
1. E. Anaphase — *The sister chromatids are pulled apart.*
→ In anaphase, spindle fibers pull sister chromatids to opposite poles.
2. A. Prophase — *The nuclear membrane begins to fade from view.*
→ Nuclear envelope breaks down during prophase.
3. C. Telophase — *A new nuclear membrane is forming around the chromosomes.*
→ Telophase is when nuclei reform around separated chromosomes.
4. B. Interphase — *The cell is not dividing.*
→ Interphase is the “resting” phase where the cell grows and replicates DNA — no division occurs yet.
5. A. Prophase — *The chromosomes become visible.*
→ Chromatin condenses into visible chromosomes during prophase.
6. D. Metaphase — *The chromosomes are located at the equator of the cell.*
→ Chromosomes align at the metaphase plate (equator).
7. C. Telophase — *The centrioles begin to fade from view.*
→ Centrioles are less visible as mitosis ends; they disassemble or move away.
8. C. Telophase — *The cleavage furrow appears.*
→ Cleavage furrow forms in animal cells during telophase to begin cytokinesis.
9. E. Anaphase — *The chromosomes are moving towards the poles of the cell.*
→ Sister chromatids (now called chromosomes) are pulled apart toward poles.
10. B. Interphase — *The DNA is replicated.*
→ DNA replication happens in S phase of interphase.
11. A. Prophase — *The spindle fibers are formed.*
→ Spindle apparatus begins to form from centrosomes during prophase.
12. B. Interphase — *Chromosomes are not visible.*
→ Chromatin is diffuse; chromosomes only become visible in prophase.
13. C. Telophase — *The phase just before cytokinesis.*
→ Telophase ends mitosis; cytokinesis follows immediately after.
14. D. Metaphase — *Centromeres attach to spindle fibers.*
→ During metaphase, chromosomes line up and centromeres attach to spindle fibers from both poles.
---
## ✔ PART B: FILL IN THE BLANK
Some terms will be used more than once.
A. Prophase
B. Interphase
C. Telophase
D. Metaphase
E. Anaphase
F. Centromere
G. Chromatid
H. Cytokinesis
I. Mitosis
J. Spindle fibers
K. Cell plate
L. Centrioles
---
Answers & Explanations:
18. C. Telophase — *What phase are daughter cells in as a result of mitosis?*
→ At the end of telophase, two daughter nuclei exist; cells enter interphase next.
19. E. Anaphase — *During which phase of mitosis do centromeres divide and the chromosomes move toward their respective poles?*
→ Centromeres split in anaphase, allowing chromatids to separate.
20. A. Prophase — *What is the phase where chromatin condenses to form chromosomes?*
→ Condensation begins in prophase.
21. F. Centromere — *What is the name of the structure that connects the two chromatids?*
→ The centromere holds sister chromatids together.
22. G. Chromatid — *In a double-stranded chromosome, what is each individual DNA molecule called?*
→ Each strand is a chromatid; together they make one chromosome.
23. I. Mitosis, H. Cytokinesis, B. Interphase — *What are the three major parts of cell division?*
→ Interphase (preparation), Mitosis (nuclear division), Cytokinesis (cytoplasmic division).
*(Note: Sometimes "cell division" refers only to mitosis + cytokinesis, but since interphase is included in the cell cycle and necessary for division, it’s often grouped here.)*
24. J. Spindle fibers — *What structures form in prophase along which the chromosomes move?*
→ Spindle fibers guide chromosome movement.
25. D. Metaphase — *Which phase of mitosis is the last phase that chromatids are together?*
→ Chromatids are still attached at centromeres until anaphase begins.
26. B. Interphase — *Which phase of the cell cycle is characterized by a non-dividing cell?*
→ Interphase = growth and DNA synthesis, not active division.
27. L. Centrioles — *What structures do the spindle fibers radiate from?*
→ In animal cells, spindle fibers radiate from centrioles (centrosomes).
28. K. Cell plate — *What forms across the center of a plant cell during cytokinesis?*
→ Plant cells form a cell plate (from Golgi vesicles) to divide cytoplasm.
29. B. Interphase — *The period of cell growth and development between mitotic divisions?*
→ Interphase includes G1, S, G2 — all growth and prep phases.
30. H. Cytokinesis — *What is the division of the cytoplasm and cell membrane that follows telophase?*
→ Cytokinesis physically splits the cell into two daughter cells.
---
## 📌 FINAL ANSWER KEY:
PART A:
1. E
2. A
3. C
4. B
5. A
6. D
7. C
8. C
9. E
10. B
11. A
12. B
13. C
14. D
PART B:
18. C
19. E
20. A
21. F
22. G
23. I, H, B *(or any order — Mitosis, Cytokinesis, Interphase)*
24. J
25. D
26. B
27. L
28. K
29. B
30. H
---
✔ You’re all set! This covers the full cell cycle and mitosis process with accurate matching and fill-ins. Let me know if you’d like diagrams or mnemonics to remember the phases!
Parent Tip: Review the logic above to help your child master the concept of mitosis matching worksheet.
