Transcript aerobic cell respiration

Cell
Respiration
Cell Respiration is a process your cells do
to make energy. You need to breathe in
order for your cells to do the process of cell
respiration and make energy.
When you inhale, what gas are you
taking from the air?
Have you ever wondered where
that oxygen goes?
From your lungs, it diffuses into
your blood.
Its ultimate destination: your cells
When the oxygen-rich blood reaches
your cells, oxygen diffuses across
the cell membrane and into the cells.
Your cells will
use the oxygen
to do cell
respiration and
make ATP
energy.
Carbon Dioxide is a waste product
of cellular respiration.
So, it diffuses out of your cells and
into your bloodstream.
Once it arrives at
your lungs, it
diffuses out of
the blood and
into your lungs.
Then, you exhale it.
So, the reason
you breathe is
in order for
your cells to
do cell
respiration.
Are you the only thing that does
cell respiration?
NO!
All living things
do cell
respiration.
Animals do cell respiration!
Plants do cell respiration!
Even bacteria do cell respiration!
So, what is cell respiration?
The chemical equation for aerobic cell
respiration may look familiar to you.
6 O2 + C6H12O6  6 CO2 + 6 H2O
Oxygen+Glucose
 Carbon Dioxide + Water
The aerobic cell respiration
equation is the opposite of
photosynthesis!
What are some organisms that do
aerobic cell respiration?
• Animals (including
humans)
• Plants
Aerobic cell respiration requires
oxygen
In the process of breaking down
glucose, aerobic cell respiration
makes a net of 36 ATP molecules.
Remember,
Cells use ATP for
energy
Where in the cell does aerobic cell
respiration occur?
IN THE MITOCHONDRIA!
Is there another type of cell
respiration?
YES!
Some organisms
such as yeast and
bacteria do anaerobic
cell respiration.
What does anaerobic mean?
Without oxygen
Products of anaerobic respiration
include:
• The carbon dioxide
produced is used to
make bread rise
•The ethyl alcohol
produced is used in wine
and beer.
And, if you’ve ever worked out too
hard and your muscles ache..
Lactic Acid
Fermentation is
when your muscle
cells produce lactic
acid through
anaerobic cell
respiration
Anaerobic cell respiration is less
efficient
It only produces a net of
2 ATP molecules
Let’s Review
There are two types of
cell respiration
• Aerobic
• Anaerobic
• Aerobic requires oxygen
• The products of aerobic are carbon
dioxide and water
• Aerobic yields 36 ATP
• Aerobic happens in the mitochondria of
eukaryote cells
• Anaerobic does not require oxygen
• The products of anaerobic are carbon
dioxide and alcohol or lactic acid
• Anaerobic yields 2 ATP
Check for understanding:
How are photosynthesis and respiration
dependent upon each other?