Mitosis

1. READ pages 96-99. ANSWER in COMPLETE SENTENCES
1. Is it true that cells divide by simply being cut in half?
2. What is the cell cycle?
3. Do all cells take the same amount of time to complete
the cell cycle?
4. What did you learn about human skin and bone cells?
5. In what phase does a eukaryotic cell spend most of its
life?
6. Give two examples of cells in your body that no longer
divide.
7. Why must a cell copy its hereditary material before
dividing?

2. 8. What is mitosis?
9. What are the four phases of mitosis called?
10. What is a chromosome?
11. What is a chromatid?
12. What are the two structures that move to
opposite ends of the cell during prophase called?
13. During what phase does a new cell’s nucleus
form?
14. When does cytoplasm separate?

3. Chapter 4 Section 1
- All living organisms have a life cycle, including
cells.
1. interphase – a period of growth and development
for a cell.

4. 2. mitosis – the process in which the nucleus of a
cell divides to form two identical nuclei
- There are four phases of mitosis:
- prophase
- metaphase
- anaphase
- telephase

5. https://www.youtube.com/watch?v=L0k-enzoeOM
Watch for HOMEWORK. Answer questions posted by
Mrs. Severino 
https://www.youtube.com/watch?v=C6hn3sA0ip0
Watch this one NOW 

6. 3. chromosome – a structure in the nucleusof a cell
that contains hereditary material.
- every cell in the human body except sex cells
contain 46 chromosomes (23 pairs)
- half of the chromosomes are from the father,
half from the mother

7. - Among living organisms, there are two types of
reproduction: sexual and asexual
4. asexual reproduction – the process of
reproduction in which a new organism is produces
from only one parent organism
5. budding – a type of asexual reproduction in which
offspring grows out of the body of the parent
organism
https://www.youtube.com/watch?v=JZLHJZZZS-Y

8. 6. regeneration – a process that uses cell division to
regrow body parts
https://www.youtube.com/watch?v=d5dOSyaKWT
Q&list=PLuY53ctx4UGJyyGzhMkcWk15HrItJjWdf

9. 7. haploid cells – cells, like human sex cells, that
do not have pairs of chromosomes
8. diploid cells – cells that have chromosome
pairs (*note – the prefix di-)
9. meiosis – the process that produces four
haploid cells from one diploid cell
- during meiosis, two divisions of the nucleus
occur
(pg 106-107)