Download apoptosis

Chapter 2
Cells
Cells
1
BIG IDEA
• Our bodies are built of trillion of cells that
interact in complex ways to keep us all alive .
All cells in body use the same genome , but
have different structure and function because
they access different parts of the genome
2
Topic : Stem Cell
Learning Objective Explain the role of apoptosis
in cell regulation
Success Criteria
What is apoptosis
Role of apioptosis
Types of apoptosis
Keywords
cell , cell cycle, regulation cells , Apoptosis,
Warm up
• Think-Pair-share
How cells in body regulated
Apoptosis
• Begins when a cell receives a “death receptor”
• Killer enzymes called caspases are activated
– Destroy cellular components
• Phagocytes digest the remains
• Dying cell forms bulges called blebs
5
Think
1. what is it ?
2. When does it
happen ?
3. What if it
doesn’t
happen ?
Explore
• https://www.youtube.com/watch?v=CMQsyB
qQB6s
• https://www.youtube.com/watch?v=-vmtKbAC5E
Death of a Cell
• Mitosis and apoptosis
work together to form
functional body.
• Cancer can result from
too much mitosis or too
little apoptosis.
10
TASK
1. Why is apoptosis important ?
2. Explain the 3 ways in which apoptosis
takes place ?
3. What are some examples of
apoptosis?
Exit ticket
Extended Task: . What is difference between
apoptosis and necrosis