cell cycle and mitosis worksheet Doc Template | pdfFiller - Free Printable

Problem Analysis:

The task involves matching the stages of the cell cycle and mitosis with their descriptions. The diagram on the right provides a visual representation of the cell cycle, and the left column requires filling in the corresponding letters for each stage. The right column requires completing the descriptions of each stage.

Solution Approach:

1. Identify the Stages in the Diagram: The labeled diagram shows different phases of the cell cycle and mitosis. We need to match these labels (A, B, C, D, etc.) with the correct stages.
2. Match Descriptions to Stages: Use the provided descriptions to identify which stage they correspond to in the cell cycle or mitosis.
3. Fill in Missing Words: Complete the blanks in the descriptions using appropriate terms related to the cell cycle and mitosis.

Step-by-Step Solution:

#### Left Column: Place the Corresponding Letter for the Correct Stage
1. A: Consists of G₁, S, and G₂ phases in the Cell Cycle.
- This describes the Interphase. In the diagram, A is labeled as Interphase.
- Answer: A

2. Cytokinesis – division of the cytoplasm resulting in two identical d cells.
- This describes Cytokinesis, which occurs after mitosis. In the diagram, J is labeled as Cytokinesis.
- Answer: J

3. G₁ – growth phase: Makes organelles and proteins needed for replication of DNA. Also contains a G₁ checkpoint. If everything is correct, cell will proceed to S phase.
- This describes the G₁ phase. In the diagram, H is labeled as G₁.
- Answer: H

4. S phase: DNA is replicated or synthesized.
- This describes the S phase. In the diagram, G is labeled as S.
- Answer: G

5. G₂ - growth phase: Cell gets ready to undergo M ________. Also contains a G₂ checkpoint. If DNA replication is correct, checkpoint allows cell to enter M phase.
- This describes the G₂ phase. In the diagram, F is labeled as G₂.
- Answer: F

6. Prophase: chromatin condenses to become chromosomes, nuclear envelopes break down, and centrioles migrate to opposite poles in animal cells. Nucleolus disappears.
- This describes Prophase. In the diagram, E is labeled as Prophase.
- Answer: E

7. M ________: sister chromatids line up along the metaphase plate in the middle. Spindle apparatus attaches at the centromere of the chromosomes.
- This describes Metaphase. In the diagram, D is labeled as Metaphase.
- Answer: D

8. A ________: sister chromatids separate and move to opposite sides of the cell. The s ________ a ________ pulls them apart. This phase ends when the chromatids stop moving.
- This describes Anaphase. In the diagram, C is labeled as Anaphase.
- Answer: C

9. Telophase: two nuclear envelopes begin reforming. Chromatids relax, uncoil & are now chromatin. Cytokinesis is occurring during Telophase but it is NOT considered a part of mitosis because it does not involve the nucleus of the cell. In plant cells, a cell plate begins to form while a c ________ f ________ is visible in animal cells.
- This describes Telophase. In the diagram, B is labeled as Telophase.
- Answer: B

10. Mitosis: division of a cell’s nucleus. Occurs in this order: prophase, ________, ________, and telophase.
- This describes the sequence of mitosis: Prophase, Metaphase, Anaphase, and Telophase.
- Answer: Metaphase, Anaphase

#### Right Column: Complete the Description of the Stage
1. A: Consists of G₁, S, and G₂ phases in the Cell Cycle.
- Description: Interphase.

2. J: Cytokinesis – division of the cytoplasm resulting in two identical daughter cells.
- Completed Description: Cytokinesis – division of the cytoplasm resulting in two identical daughter cells.

3. H: G₁ – growth phase: Makes organelles and proteins needed for replication of DNA. Also contains a G₁ checkpoint. If everything is correct, cell will proceed to S phase.
- Description: G₁ phase.

4. G: S phase: DNA is replicated or synthesized.
- Description: S phase.

5. F: G₂ - growth phase: Cell gets ready to undergo mitosis. Also contains a G₂ checkpoint. If DNA replication is correct, checkpoint allows cell to enter M phase.
- Completed Description: G₂ - growth phase: Cell gets ready to undergo mitosis. Also contains a G₂ checkpoint. If DNA replication is correct, checkpoint allows cell to enter M phase.

6. E: Prophase: chromatin condenses to become chromosomes, nuclear envelopes break down, and centrioles migrate to opposite poles in animal cells. Nucleolus disappears.
- Description: Prophase.

7. D: M phase: sister chromatids line up along the metaphase plate in the middle. Spindle apparatus attaches at the centromere of the chromosomes.
- Completed Description: M phase: sister chromatids line up along the metaphase plate in the middle. Spindle apparatus attaches at the centromere of the chromosomes.

8. C: A naphase: sister chromatids separate and move to opposite sides of the cell. The spindle apparatus pulls them apart. This phase ends when the chromatids stop moving.
- Completed Description: A naphase: sister chromatids separate and move to opposite sides of the cell. The spindle apparatus pulls them apart. This phase ends when the chromatids stop moving.

9. B: Telophase: two nuclear envelopes begin reforming. Chromatids relax, uncoil & are now chromatin. Cytokinesis is occurring during Telophase but it is NOT considered a part of mitosis because it does not involve the nucleus of the cell. In plant cells, a cell plate begins to form while a contractile ring is visible in animal cells.
- Completed Description: Telophase: two nuclear envelopes begin reforming. Chromatids relax, uncoil & are now chromatin. Cytokinesis is occurring during Telophase but it is NOT considered a part of mitosis because it does not involve the nucleus of the cell. In plant cells, a cell plate begins to form while a contractile ring is visible in animal cells.

10. Mitosis: division of a cell’s nucleus. Occurs in this order: prophase, metaphase, anaphase, and telophase.
- Completed Description: Mitosis: division of a cell’s nucleus. Occurs in this order: prophase, metaphase, anaphase, and telophase.

Final Answer:

\[
\boxed{
\begin{array}{ll}
1. & \text{A: Interphase} \\
2. & \text{J: Cytokinesis – division of the cytoplasm resulting in two identical daughter cells.} \\
3. & \text{H: G₁ phase} \\
4. & \text{G: S phase} \\
5. & \text{F: G₂ phase} \\
6. & \text{E: Prophase} \\
7. & \text{D: Metaphase} \\
8. & \text{C: Anaphase} \\
9. & \text{B: Telophase} \\
10. & \text{Metaphase, Anaphase} \\
\end{array}
}
\]