CELLULAR RESPIRATION
The breakdown of organic
compounds to form ATP needed for
cellular reactions
Cellular respiration occurs in all
living things.
Plants, animals, protists, fungi,
bacteria,
Cellular respiration occurs in stages,
each stage requires enzymes,
as the breakdown of glucose is
A controlled breakdown –
not like burning glucose
Like we can do outside of the body.
PART ONE OF CELLULAR RESPIRATION
– GLYCOLYSIS
Means destruction of glucose
-occurs in the cytoplasm
-occurs in all living things,
So all living things share
the same DNA which
produces the same enzymes
(Proteins) to perform the
Same task - glycolysis.
http://www.science.smith.edu/departments/Biology/Bio231/glycolysis.html
After glycolysis, many paths can
be taken. The one taken depends
On the enzymes present in the
organism, (genes build enzymes)
and the environmental conditions
A. Anaerobic respiration –
aka fermentation
1. alcoholic fermentation
2. lactic acid fermentation
3. acetic acid fermentation
B. Aerobic respiration –
requires oxygen
Occurs in the mitochondria
Involves the Krebs Cycle
and electron transport
http://www.science.smith.edu/departments/Biology/Bio231/krebs.html
ELECTRON TRANSPORT CHAIN:
PRODUCES 34 ATP’S
http://www.science.smith.edu/departments/Biology/Bio231/etc.html
http://www.science.smith.edu/departments/Biology/Bio231/etc.html