1. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by __________________________ proteins.
Proteins called cyclins bind to enzymes called __________________________________
In the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
__________________________________ is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called _________________________
6. When an embryo divides, some cells go through a process called
________________________, or programmed death.
7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions.

2. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by __________________________ proteins.
Proteins called cyclins bind to enzymes called __________________________________
In the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
__________________________________ is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called _________________________
6. When an embryo divides, some cells go through a process called
________________________, or programmed death.
7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions.

3. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by Cyclin proteins.
Proteins called cyclins bind to enzymes called __________________________________
In the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
__________________________________ is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called _________________________
6. When an embryo divides, some cells go through a process called
________________________, or programmed death.
7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions.

4. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by Cyclin proteins.
Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
3. __________________________________ is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called _________________________
6. When an embryo divides, some cells go through a process called
________________________, or programmed death.
7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions.

5. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by Cyclin proteins.
Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
3. Cancer is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called _________________________
6. When an embryo divides, some cells go through a process called
________________________, or programmed death.
7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions.

6. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by Cyclin proteins.
Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
3. Cancer is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called Carcinogens
6. When an embryo divides, some cells go through a process called
________________________, or programmed death.
7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions.

7. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by Cyclin proteins.
Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
3. Cancer is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called Carcinogens
6. When an embryo divides, some cells go through a process called
Apoptosis, or programmed death.
7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions.

8. Biology I Section 9.3 SQ3R Quiz
The normal cell cycle is regulated by Cyclin proteins.
Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle.
3. Cancer is the uncontrolled growth and division of cells.
5. Substances and agents that are known to cause cancer are called Carcinogens
6. When an embryo divides, some cells go through a process called
Apoptosis, or programmed death.
7. Stem Cells are unspecialized cells that can develop into specialized cells when under the right conditions.

9. Objectives February 9
Summarize the role of cyclin proteins in controlling the cell cycle
Explain how cancer relates to the cell cycle.
Describe the role of apoptosis
Summarize the two types of stem cells and their potential uses

10. How long is the average human cell cycle?
20 hours
How many cells at the end of 1 day?
2 cells.
How many cells at the end of 1 week?
How many hours in I week? 24 x 7 = 168 divide by so 8 doubles. Do you think all cells reproduce at the same rate (have the same cell cycle? Skin, hair, nails reproduce quickly – short cell cycle. Bone and nerve longer cell cycle.
256 cells.

11. Cancerous Stomach Cells
Normal Stomach Cells
Cancerous Stomach Cells
Interphase
120 mins.
Prophase
60 mins.
Metaphase
10 mins.
Anaphase
3 mins.
Telophase
12 mins.
Total
205 mins.

12. Cancerous Stomach Cells
Normal Stomach Cells
Cancerous Stomach Cells
Interphase
120 mins.
16 mins.
Prophase
60 mins.
15 mins.
Metaphase
10 mins.
2 mins.
Anaphase
3 mins.
1 mins.
Telophase
12 mins.
Total
205 mins.
37 mins.

13. Stop light metaphor regulates traffic
Stop light metaphor regulates traffic. Signaling molecules (Proteins called cyclinsbind to cdk to kick off the cell cycle and drive it through mitosis. Different combonations

14. Homework
Section 9.2 chapter assessment page 261 and 262

15. Math Fun and the cell cycle
A scientist observes 240 cells are in interphase, 25 are in prophase, 24 are in metaphase, 6 are in anaphase and 5 are in telophase.
A complete cell cycle for this cell is 24 hours.
What is the average duration of mitosis?

16. A scientist observes 100 cells
A scientist observes 100 cells. 50 are in interphase, 18 are in prophase, 19 are in metaphase, 7 are in anaphase and 6 are in telophase.
A complete cell cycle for this cell is 50 hours.
What is the average duration of mitosis?