Biology I Section 9.3 SQ3R Quiz

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?
256 cells.
11
Normal Stomach Cells Normal Stomach Cells Cancerous Stomach Cells Cancerous Stomach Cells
Interphase 120 mins.
Prophase 60 mins.
Metaphase 10 mins.
Anaphase 3 mins.
Telophase 12 mins.
Total 205 mins.
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Normal Stomach Cells Normal Stomach Cells Cancerous Stomach Cells Cancerous Stomach Cells
Interphase 120 mins. Interphase 16 mins.
Prophase 60 mins. Prophase 15 mins.
Metaphase 10 mins. Metaphase 2 mins.
Anaphase 3 mins. Anaphase 1 mins.
Telophase 12 mins. Telophase 3 mins.
Total 205 mins. Total 37 mins.
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Homework

• Section 9.2 chapter assessment page 261 and 262

15
Math Fun and the cell cycle

• A scientist observes 240 cells. 180 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. 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?