Cell Cycle and Mitosis – Biology Essential Standard 1.2

As we look at the PowerPoint on Cell Cycle and Mitosis hyperlinks will take to short video that explain the content in more detail.

Cell cycle and Mitosis pptBiology Coach Book – Lesson 5

The videos are short less than 15 minutes and provide an overview of the topics we will be covering. It may help to view the video again after the PowerPoint to fill in any gaps you may have missed.

The readings out of the Coach Book are short, easy to follow focused instruction that will help with the understanding of the main topics

Define:Chromosome

Sister Chromatid

Centromere

Daughter Cell

Parent Cell

Interphase

Mitosis

The Cell Cycle Coloring Label the diagram below with the following labels:

Interphase Mitosis Prophase Metaphase Anaphase Telophase Cell division (M Phase) Interphase Cytokinesis Interphase S-DNA replication G1 – cell grows G2 – prepares for mitosis

Then on the diagram, lightly color the G1 phase BLUE, the S phase YELLOW, the G2 phase RED, and the stages of mitosis ORANGE. Color the arrows indicating all of the interphases in GREEN. Color the part of the arrow indicating mitosis PURPLE and the part of the arrow indicating cytokinesis YELLOW.

Use the diagram and your notes to answer the following questions. 1. What is a series of events that cells go through as they grow and divide?

2. What is the longest stage of the cell cycle called?

3. During what stage does the G1, S, and G2 phases happen?

4. During what phase of the cell cycle does mitosis and cytokinesis occur?

5. During what phase of the cell cycle does cell division occur?

6. During what phase of the cell cycle is DNA replicated?

7. During what phase of the cell cycle does the cell grow?

8. During what phase of the cell cycle does the cell prepare for mitosis?

9. How many stages are there in mitosis?

10. Put the following stages of mitosis in order: anaphase, prophase, metaphase, and telophase.

11. Put the following stages of the cell cycle in order: G2, S, G1, M.

12. Put the following in order: G2, G1, S, mitosis, cytokinesis.

13. Put the following actions in order: DNA replication, cell grows, cell division, cell prepares for mitosis.

14. Explain why cells don’t just continue to grow larger as organisms grow larger. Why do cells divide? (Write in complete sentences)

DNA Replication

Mitosis Coloring Sheet:

Follow the coloring code on the overhead, complete the key at the bottom of thepage using the same colors and cut each cell out and put in correct sequence inyour notebook. Paste the KEY into your notebook too! Underneath each diagram,use your textbook to write a 2-3 sentence explanation of what goes on during thatstage.

Labeling:

The Cell Cycle – Mitosis

11. What moves the chromatids during mitosis? ___________________________________12. What anchors the spindle? ________________________________________13. What are the four phases of mitosis? ___________________________________________________14. How many daughter cells are created from mitosis and cytokinesis? ___________________________15. During what phase does cytokinesis begin? ________________________________________16. If a human cell has 46 chromosomes, how many chromosomes will be in each daughter cell? _________17. If a dog cell has 72 chromosomes, how many daughter cells will be created during a single cell cycle? ______.....Each of these daughter cells will have how many chromosomes? ____________18. The nuclear membrane dissolves during what phase? ________________________19. In the cell pictured above, how many chromosomes are present during prophase? ________________20. What structure holds the individual chromatids together? ______________________________