Energy and Life

1
Energy and Life

• How are cells structured for efficiency and
  survival?

2
Energy

• Energy ability to do work
• Need to be able to get and use energy to LIVE
• Comes in many different forms

3
What is ATP?

• Adenosine triphosphate (ATP)
• Form of CHEMICAL energy cells make and use

4
How cells use ATP

• Can break the ATP bonds to release energy
• Not good for storage of energy (glucose better)

5
Where does ATP come from?

• Energy to make ATP comes from FOOD
• 2 ways to get food
• Heterotrophs obtain food by consuming other
  things

6
Where does ATP come from?

• Autoptrophs make their own food using energy
  from the sun
• Photosynthesis- plants energy in sunlight into
  chemical energy