Cellular Processes
Cellular Respiration
Review
I Can



I can describe the difference
between autotrophs and
heterotrophs
I can describe the events that
occur during cellular respiration.
I can describe the role that
mitochondria play in cellular
respiration.
Characteristic of
Living Organisms

Fungi
Plants
All living things
obtain and use
energy
Animals
Absorbing from
the soil
Absorbing from
the sun
How do living
organisms
obtain energy?
Consuming other
organisms
Autotrophs vs. Heterotrophs
An organism
that makes its
own food.
An organism that
CANNOT make
its own food.
Example:
Example
How does food
provide energy?

We eat glucose

What is glucose?

Where does it
come from?

When we digest
food, the energy
is released
Energy
What kind of energy comes
from food?

The energy
released
from food is
called ATP.
What is cellular respiration?

It is the process
by which glucose
is broken down into
carbon dioxide
and water and
energy is
released.
Where in the cell does
respiration occur?
IN the MITOCHONDRIA!
CELLULAR RESPIRATION
Where?
In the mitochondria
What?
The glucose
molecules are broken
down even more and
ENERGY is released.
How Heterotrophs Obtain Energy…
Bloodstream
Mitochondria
Digestive
system
Cells
Equation Vocabulary
 Raw
material:
the “stuff” (or materials) you
need to start the process.

Product:
the “stuff” that you end up
with (is produced as a result
of the process).
What do we need to start
cellular respiration?
1. Sugars (glucose)
2. Oxygen
What do we need to start
cellular respiration?
C6H1206 + 602
Glucose
Oxygen
“yields”
What are the products of
cellular respiration?
6C02 + 6H20 + ATP
Carbon
Dioxide
Water
Used to
power cells.
What is the equation for respiration?
C6H12O6 +6O2
Glucose
Oxygen
6CO2 + 6H2O + ATP
Carbon
dioxide
Water
Energy
Brain Pop

Now we are going to watch the
Cellular Respiration BrainPOP
http://www.brainpop.com/science/cellularlifeandgenetics/cellularrespiration/
Yeast Lab Background
“An Investigation of Cellular Respiration”
What are yeast?
 Yeast are micro eukaryotic
organisms that have been used in
baking for thousands of years
Yeast



Conduct cellular respiration
What does cellular
respiration need?
What does cellular
respiration create?
Yeast



Conduct fermentation
Does not require
oxygen
Still produces energy
Yeast Lab Set Up and
Background
Investigation of Cellular
Respiration

In your group:
Read the “Purpose” and “Background
Information” Sections
 Answer the “Background Questions”

TIME IS UP!!!!!!
Hypothesis




We are going to increase the levels of
glucose in the bottles.
Do you think that this will INCREASE
or DECREASE the level of ATP?
Will this INCREASE or DECREASE the
level of CO2?
Why?
Setting up the Lab
LISTEN and follow all
directions the first time they
are given.
Data
Fill in your Data Table
Yeast Preparation


Active dry yeast
needs to be
reactivated with
water
Why?
Key Idea

Most chemical reactions within cells
could not take place without water.
Other than the water, what
other items were in the bottle?
Sugar
Yeast
Air
What caused the balloon to
blow up?
Carbon Dioxide!!!

But where did
the carbon
dioxide come
from?
Cellular Respiration
(and fermentation!)
Conclusion
Make your final Conclusions
Exit Slip