Mitosis and Cell Cycle worksheet - Free Printable

Problem Analysis:

The worksheet focuses on the phases of mitosis and related cellular processes. Let's break it down step by step:

---

#### Part 1: Label the Phases of Mitosis
The images provided represent different stages of mitosis. We need to identify each phase.

1. Image 11: The chromosomes are not yet visible, and the nuclear membrane is intact. This is Interphase.
2. Image 12: Chromosomes are aligned at the metaphase plate (equator) of the cell. This is Metaphase.
3. Image 13: Chromosomes are moving toward opposite poles of the cell. This is Anaphase.
4. Image 14: Chromosomes have reached opposite poles, and new nuclear membranes are forming around them. This is Telophase.
5. Image 15: Two separate nuclei are formed, and the cell is beginning to divide. This is Cytokinesis.

So, the labels are:
- 11: Interphase
- 12: Metaphase
- 13: Anaphase
- 14: Telophase
- 15: Cytokinesis

---

#### Part 2: Complete the Table
We need to determine whether each statement applies to Interphase or Mitosis.

1. Cell growth occurs: Yes (Interphase), No (Mitosis)
- Cell growth primarily occurs during interphase.
2. Nuclear division occurs: No (Interphase), Yes (Mitosis)
- Nuclear division happens during mitosis.
3. Chromosomes are finishing moving into separate daughter cells: No (Interphase), Yes (Mitosis)
- This occurs during telophase and cytokinesis.
4. Chromosomes are duplicated: Yes (Interphase), No (Mitosis)
- Chromosome duplication occurs during S phase of interphase.
5. DNA synthesis occurs: Yes (Interphase), No (Mitosis)
- DNA replication occurs during S phase of interphase.
6. Where cells spend most of their life: Yes (Interphase), No (Mitosis)
- Cells spend most of their time in interphase.
7. Mitochondria and other organelles are made: Yes (Interphase), No (Mitosis)
- Organelle production and growth occur during interphase.

The completed table looks like this:

| Statement | Interphase | Mitosis |
|------------------------------------|------------|---------|
| 16. Cell growth occurs | Yes | No |
| 17. Nuclear division occurs | No | Yes |
| 18. Chromosomes are finishing moving into separate daughter cells | No | Yes |
| 19. Chromosomes are duplicated | Yes | No |
| 20. DNA synthesis occurs | Yes | No |
| 21. Where cells spend most of their life | Yes | No |
| 22. Mitochondria and other organelles are made | Yes | No |

---

#### Part 3: Questions 23–32
We are given six diagrams labeled A–F and need to answer questions based on them.

1. Diagram A: Shows a structure labeled "X." This is a mitochondrion.
2. Diagram F: Shows a structure labeled "Y." This is a centriole.
3. Which cell is not in a phase of mitosis?
- Diagram D shows a cell in interphase, as the chromosomes are not visible and the nuclear membrane is intact.
4. New nuclear membranes are forming in B. What is this phase called?
- This is Telophase.
5. Sequence the six diagrams in chronological order from first to last.
- The correct order is: D (Interphase) → A (Prophase) → F (Metaphase) → B (Telophase) → E (Cytokinesis) → C (Late Telophase/Cytokinesis).
6. Chromosomes move to the middle of the cell during?
- This occurs during Metaphase.
7. When do the sister chromatids separate?
- Sister chromatids separate during Anaphase.
8. During which phase do chromosomes first become visible?
- Chromosomes first become visible during Prophase.
9. During which phase does the cleavage furrow start forming on animal cells?
- The cleavage furrow starts forming during Cytokinesis.

---

Final Answers:

1. Labels for Mitosis Phases:
- 11: Interphase
- 12: Metaphase
- 13: Anaphase
- 14: Telophase
- 15: Cytokinesis

2. Completed Table:
| Statement | Interphase | Mitosis |
|------------------------------------|------------|---------|
| 16. Cell growth occurs | Yes | No |
| 17. Nuclear division occurs | No | Yes |
| 18. Chromosomes are finishing moving into separate daughter cells | No | Yes |
| 19. Chromosomes are duplicated | Yes | No |
| 20. DNA synthesis occurs | Yes | No |
| 21. Where cells spend most of their life | Yes | No |
| 22. Mitochondria and other organelles are made | Yes | No |

3. Questions 23–32:
- 23. Structure X in A: Mitochondrion
- 24. Structure Y in F: Centriole
- 25. Cell not in mitosis: D
- 26. Phase where new nuclear membranes form: Telophase
- 27. Chronological order: D → A → F → B → E → C
- 28. Chromosomes move to the middle during: Metaphase
- 29. Sister chromatids separate during: Anaphase
- 30. Chromosomes first become visible during: Prophase
- 31. Cleavage furrow starts forming during: Cytokinesis

---

Final Boxed Answers:

\[
\boxed{
\begin{array}{l}
\text{11: Interphase} \\
\text{12: Metaphase} \\
\text{13: Anaphase} \\
\text{14: Telophase} \\
\text{15: Cytokinesis} \\
\text{23: Mitochondrion} \\
\text{24: Centriole} \\
\text{25: D} \\
\text{26: Telophase} \\
\text{27: D → A → F → B → E → C} \\
\text{28: Metaphase} \\
\text{29: Anaphase} \\
\text{30: Prophase} \\
\text{31: Cytokinesis}
\end{array}
}
\]