Number your notebook and label the top the following:
EVEN Pages-LEFT SIDE
Page 92- Concept Map
Page 94- Quiz
Page 96- Sequence
Page 98- Vocabulary
Page 100- Warm Ups
Page 102-Energy IntroWS
ODD Pages-RIGHT SIDE
Page 93- Review Sheet
Page 95- Quiz
Page 97- Study Guide
Page 99- Vocabulary
Page 101- Warm Ups
Page 103- ATP Notes
Agenda
1. Go over test results/Questions/Redo
2. Warm Up
3. ATP-ADP Notes
4. ATP-ADP Activity
5. Finish Vocabulary/Work on Redo
HOW DO LIVING THINGS OBTAIN ENERGY?
All organisms need energy to live.
Autotrophs
-Organisms that make their own food- usually from the sun, like
plant.
-Chemoautotrophs use inorganic substances like hydrogen
sulfide as a source of energy
Heterotrophs
-Need to ingest food to obtain energy
-Eat autotrophs or other heterotrophs, stores energy as ATP
FLOW OF ENERGY
•
Energy continually flows between catabolic and anabolic pathways.
• Catabolic Pathway: release energy by breaking down larger molecules
into smaller ones
• Anabolic pathways: use energy released to build larger molecules from
smaller ones
•
Photosynthesis is an ANABOLIC pathway in which light energy from the
sun is converted to chemical energy (sugar) for use by the cell.
•
Cellular Respiration is the CATABOLIC pathway in which organic
molecules (sugar) are broken down to release energy for use by the cell
CELLULAR ENERGY!! ATP
• ATP = Adenosine Triphosphate
• ATP is the most important energy
molecule in the cell
• A molecule of ATP has 3 parts:
1. Adenosine – nitrogenous base
2. Ribose – sugar
3. Triphosphate – 3 phosphate groups
bonded together by “high energy”
bonds
ENERGY BONDS
•
•
•
•
Whenever chemical bonds are broken energy is
released
Whenever chemical bonds are created energy is
needed
ATP is like a battery, it can be recharged!
ATP loses a phosphate group
1. Releases energy!!!
2. Creates ADP (Adenosine Diphosphate)
•
ADP adds a phosphate group
1.
2.
Requires energy
Creates ATP again!
Draw
What goes
here to
ENERGY
create ATP
and
from ADP?
Molecule
Phosphate
Is a bond
created or
Bond
broken?
Draw
Formed
Molecule
Is a bond
Bond
created or
Broken
broken?
What two things
ENERGY
are released to
create ADP?
And
Draw the
Phosphate
component.
released
NOW?
- Finish your Reading Guide
- Vocabulary
- Begin your Study Guide
- Turn in interims
THINK TIME AND ATP DEMO
Humans obtain energy from the food they eat, mainly
from carbohydrates, lipids, and sometimes proteins.
However, this food must be converted into cellular
energy for the body to use.
A) What is the main cellular energy molecule?
B) List the sequence of events from food to cell:
-Bloodstream, pasta, mouth, intestine, cell, stomach