Question

mitosis stations student response sheet name: annah
station 1: what are chromosomes?
summarize the function of each term in the table below.
read this station’s card and complete the activities below.

term	function / description
2. chromatin
3. dna	contains genetic information
4. sister chromatids
5. chromosome
6. centromere

1. label the diagram below.

diagram of chromosome structure with labels 1,2,3,4,5,6

1. what does dna tightly coil around in order to form chromatin? the histone proteins

station 2: introduction to the cell cycle
read the infographic at this station and complete the activities below.

1. what is the cell cycle?

1. what is the longest stage of the cell cycle?

1. label the cell cycle diagram below. shade in the different stages with colored pencils.

diagram of cell cycle with labels g1, s, g2, m, c

phase	summary
13. s synthesis
14. g2 gap 2
15. m mitosis
16. c cytokinesis

Explanation:

Step1: Fill Station 1 table terms

1. Eukaryotic Cell Nucleus:

Stores genetic material (DNA/chromatin)

2. Chromatin:

Loosely coiled DNA + proteins

3. DNA:

Contains genetic information (already completed)

4. Sister Chromatids:

Identical replicated DNA strands

5. Chromosome:

Tightly condensed chromatin (for cell division)

6. Centromere:

Joins sister chromatids together

Step2: Label Station 1 diagram

1. Nucleus (contains chromosomes)
2. Chromatin (loose DNA-protein complex)
3. DNA (raw genetic material strand)
4. Chromosome (condensed structure)
5. Sister Chromatid (one half of chromosome)

C. Centromere (joins sister chromatids)

Step3: Answer Station 1 Q8

DNA coils around histone proteins (already completed correctly)

Step4: Answer Station 2 Q9

The cell cycle is the sequence of growth, DNA replication, and division that a eukaryotic cell undergoes to produce two identical daughter cells.

Step5: Answer Station 2 Q10

The longest stage of the cell cycle is Interphase (which includes G1, S, and G2 phases; G1 is typically the longest sub-phase).

Step6: Label Station 2 diagram

• Largest segment: G1 (Gap 1)
• Next largest: S (Synthesis)
• Next: G2 (Gap 2)
• Smallest segments: M (Mitosis) and C (Cytokinesis)

Step7: Fill Station 2 phase table

12. G1 Gap 1:

Cell grows, carries out normal functions, prepares for DNA replication

13. S Synthesis:

Cell replicates its entire DNA genome

14. G2 Gap 2:

Cell grows more, produces organelles/proteins for cell division

15. M Mitosis:

Nucleus divides; sister chromatids separate into two new nuclei

16. C Cytokinesis:

Cytoplasm divides, forming two identical daughter cells

Answer:

Station 1: What Are Chromosomes?

Term	Function / Description
2. Chromatin	Loose DNA + protein complex
3. DNA	Contains genetic information
4. Sister Chromatids	Identical replicated DNA strands
5. Chromosome	Condensed chromatin for division
6. Centromere	Joins sister chromatids

1. Diagram Labels:
2. Nucleus
3. Chromatin
4. DNA
5. Chromosome
6. Sister Chromatid

C. Centromere

1. Histone proteins

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Station 2: Introduction to the Cell Cycle

1. The cell cycle is the ordered sequence of cell growth, DNA replication, and division to produce two identical daughter cells.
2. Interphase (specifically the G1 sub-phase)
3. Diagram Labels (match segments):

• Largest segment: G1 (Gap 1)
• Next largest: S (Synthesis)
• Next: G2 (Gap 2)
• Smallest segments: M (Mitosis), C (Cytokinesis)

Phase	Summary
13. S Synthesis	DNA genome is fully replicated
14. G2 Gap 2	Cell prepares for mitosis
15. M Mitosis	Nucleus divides into two identical nuclei
16. C Cytokinesis	Cytoplasm splits into two daughter cells