Solved CELLS alive! - Mitosis Phase Worksheet Match the | Chegg.com - Free Printable

Let's solve this Mitosis Phase Worksheet step by step. The goal is to:

1. Match each labeled diagram (A–H) to the correct phase of mitosis.
2. Fill in what is happening during each phase.

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🔬 First, let’s review the phases of mitosis and what happens in each:

#### 1. Interphase (1) – *Before mitosis begins*
- Cell grows, performs normal functions, replicates DNA.
- Chromosomes are uncondensed (chromatin).
- Nucleus and nuclear envelope present.
- Not part of mitosis, but a preparation phase.

#### 2. Prophase
- Chromosomes condense and become visible.
- Nuclear envelope breaks down.
- Spindle fibers begin to form from centrosomes.

#### 3. Prometaphase
- Spindle fibers attach to kinetochores of chromosomes.
- Nuclear envelope fully disintegrates.
- Chromosomes start moving toward center.

#### 4. Metaphase
- Chromosomes line up at the metaphase plate (center of cell).
- Spindle fibers attached to both sides of sister chromatids.

#### 5. Anaphase
- Sister chromatids separate and are pulled apart to opposite poles.
- Spindle fibers shorten.

#### 6. Telophase
- Chromosomes arrive at poles and decondense.
- Nuclear envelopes reform around each set.
- Spindle fibers disappear.

#### 7. Cytokinesis
- Cytoplasm divides.
- Two daughter cells form.
- In animal cells: cleavage furrow forms.
- In plant cells: cell plate forms.

#### 8. Interphase (2) – *After mitosis*
- Daughter cells return to normal growth and function.
- May enter G₁ phase again.

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Now, let's analyze each image:

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🔍 Diagram Analysis

A)
- Chromosomes are condensed and lined up in the middle.
- Spindle fibers attached to both sides.
✔ This is Metaphase.

→ Match: Metaphase

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B)
- Two nuclei, two cells forming.
- Cytoplasm dividing.
✔ This is Cytokinesis.

→ Match: Cytokinesis

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C)
- Chromosomes are being pulled apart toward opposite ends.
- Spindle fibers are clearly pulling chromatids.
✔ This is Anaphase.

→ Match: Anaphase

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D)
- Two nuclei forming, chromosomes at poles.
- Nuclear envelopes reforming.
✔ This is Telophase.

→ Match: Telophase

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E)
- Chromosomes condensed, spindle fibers forming.
- Nuclear envelope breaking down.
✔ This is Prophase.

→ Match: Prophase

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F)
- Chromosomes not yet condensed.
- One nucleus, large, no spindle.
✔ This is Interphase (1) — before mitosis.

→ Match: Interphase (1)

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G)
- Single cell, one nucleus, no division activity.
- Looks like a resting cell.
✔ This is Interphase (2) — after division.

→ Match: Interphase (2)

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H)
- Chromosomes attached to spindle fibers, moving toward center.
- Nuclear envelope gone.
✔ This is Prometaphase.

→ Match: Prometaphase

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✔ Final Matching:

| Phase | Letter | What's Happening |
|-------------------|--------|------------------|
| Interphase (1) | F | Cell prepares for division; DNA replication occurs. Chromosomes are uncondensed. |
| Prophase | E | Chromosomes condense; nuclear envelope breaks down; spindle forms. |
| Prometaphase | H | Spindle fibers attach to kinetochores; chromosomes move toward center. |
| Metaphase | A | Chromosomes align at the metaphase plate. |
| Anaphase | C | Sister chromatids separate and move to opposite poles. |
| Telophase | D | Chromosomes decondense; nuclear envelopes reform. |
| Cytokinesis | B | Cytoplasm divides, forming two daughter cells. |
| Interphase (2) | G | Daughter cells grow and prepare for next cycle. |

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📝 Answer Key (Fill-in-the-blank):

Interphase (1): (F)
→ Cell grows, DNA replicates, preparing for division.

Prophase: (E)
→ Chromosomes condense; nuclear envelope breaks down; spindle forms.

Prometaphase: (H)
→ Spindle fibers attach to chromosomes; chromosomes move toward center.

Metaphase: (A)
→ Chromosomes line up at the equator of the cell.

Anaphase: (C)
→ Sister chromatids separate and are pulled to opposite poles.

Telophase: (D)
→ Chromosomes arrive at poles; nuclear envelopes reform.

Cytokinesis: (B)
→ Cytoplasm divides; two daughter cells form.

Interphase (2): (G)
→ Daughter cells grow and return to normal function.

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