Unit 3 Study Guide

Vocabulary To Know

Tissue Regeneration:

Cell Specialization:

Stem Cell:

Pluripotent:

Zygote:

Somatic Cell:

Transcription Factors:

Cell Cycle:

Chromosome:

Mitosis:

Interphase:

Cancer:

Guiding Questions

1.Why are cells small? (Hint- 3 reasons)

2.Why do cells divide? (For what purpose do cells divide- 4 reasons)

3.Why do we have different types of cells in our bodies?- Explain the purpose and the cause.

4.When do cells divide?

5.How do cells divide? (What is the process like?- Describe Steps of Mitosis)

6. What happens when cells divide too much?

7. As mitosis occurs, what happens to the number of cells?

8. As you develop from a zygote, do your cells become more specialized or less?

9. All the DNA in your body cells have the same DNA. How can you have cells that do different jobs?

10. What is the end product or result of mitosis? (Hint: Look at mitosis on Development flow chart)

11. A human cell has 46 chromosomes during interphase. How many chromosomes will be in the cell after the S Phase of the cell cycle?

12. A human cell with 46 chromosomes undergoes mitosis. How many chromosomes are in each daughter cell?

13. How is so much DNA able to fit into the nucleus of a cell? Use the terms histone, nucleosome, and chromatin in your description

14. When can chromosomes be visible?

15. What is apoptosis?

16. When (why) will a cell undergo apoptosis?

17. Why does a cell need a full copy of DNA?

18. What is a growth factor? (Hint: Look at cell cycle notes!)