Download ANAEROBIC VS. AEROBIC RESPIRATION

ANAEROBIC
VS.
AEROBIC
RESPIRATION
METABOLIC PROCESSES
Thylakoids of
Chloroplasts
Photosynthesis
Cellular Respiration
Light Reactions
Calvin Cycle
Takes in sunlight & H2O
Takes in CO2
Produces O2
Stroma of
Chloroplasts
Glycolysis
Takes in Glucose
Produces Glucose
Produces 2 Pyruvates, NADH & 2 ATP
O2 Present
Matrix of
Mitochondria
Krebs Cycle
Produces CO2 & Citric Acid & 2 ATP
Cristae of
Mitochondria
cytoplasm
Electron Transport Chain
Takes in O2 & NADH
Produces H2O & 32-34 ATP
No O2 Present
Lactic Acid
Fermentation
Alcoholic
Fermentation
Completed by
muscle cells
Completed by
bacteria/yeasts
Produces Lactic
Acid & NAD+
Produces
Alcohol, CO2 &
NAD+
Metabolic Processes
METABOLIC PROCESSES
• Metabolic processes (or the
consumption/production of
energy) differ in plants and
animals.
• In plants, the metabolic process
is called PHOTOSYNTHESIS.
Photosynthesis
Thylakoids of
Chloroplasts
SUN + H20 + CO2  O2 +C6H12O2
• In animals, the metabolic process
is called CELLULAR RESPIRATION.
Light Reactions
Takes in sunlight & H2O
Cellular Respiration
Calvin Cycle
Stroma of
Chloroplasts
Glycolysis
cytoplasm
Takes in CO2
Takes in Glucose
Produces O2
Produces Glucose
Produces 2 Pyruvates, NADH & 2 ATP
O2 Present
Matrix of
Mitochondria
Krebs Cycle
No O2 Present
Lactic Acid
Fermentation
Alcoholic
Fermentation
Completed by
muscle cells
Completed by
bacteria/yeasts
Produces Lactic
Acid & NAD+
Produces
Alcohol, CO2 &
NAD+
Produces CO2 & Citric Acid & 2 ATP
Cristae of
Mitochondria
Electron Transport Chain
Takes in O2 & NADH
Produces H2O & 32-34 ATP
O2 +C6H12O2  H20 + CO2 + Energy
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ATP
• Adenosine Triphosphate is the “ENERGY” molecule.
• We obtain energy by breaking the bonds of the phosphate
compound.
• It TAKES energy to MAKE energy.
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Two major classifications of metabolic processes:
• Aerobic – processes that require oxygen. When oxygen is present,
cells can rapidly produce a LOT of ATP. In animals, through cellular
respiration, the net ATP produced is 36 ATP.
• Anaerobic – processes that do NOT require oxygen. When oxygen is
not present, the pathway that follows glucose breakdown is called
fermentation. Through anaerobic processes, the net ATP produced is
2 ATP.
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Anaerobic – when cells don’t have enough O2
• Fermentation releases energy from food
molecules by produces ATP in the absence of
oxygen.
• Two types of Anaerobic
Fermentation:
• Alcoholic fermentation:
pyruvic acid + NADH  alcohol + CO2 +
NAD+
• Lactic Acid Fermentation:
pyruvic acid + NADH  lactic acid +
NAD+
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Anaerobic – when cells don’t have enough O2
• Fermentation releases energy
from food molecules by
produces ATP in the absence
of oxygen.
• Alcoholic fermentation: yeast
and a few other
microorganisms use alcoholic
fermentation, forming ethyl
alcohol and CO2 as wastes.
This causes break to rise
when the yeast runs out of O2
it begins to ferment, giving off
bubbles of CO2 that form in
the air spaces you see in a
slice of bread. The small
amount of alcohol produced
in bread evaporates when it is
baked.
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Anaerobic – when cells don’t have enough O2
• Fermentation releases energy from food molecules
by produces ATP in the absence of oxygen.
• Lactic Acid Fermentation: This type of
fermentation produces a product called lactic acid
instead of alcohol/CO2. This is produced in your
muscles during rapid exercise when the body
cannot supply enough oxygen to the tissues.
Without enough oxygen, the body is not able to
produce all of the ATP that is required. When
exercising, your large muscles run of out O2 fast,
but still require ATP. Through Lactic Acid
Fermentation, the muscles can still produce the ATP
needed, but they also produce lactic acid. The build
up of lactic acid can be painful after only a few
seconds, causing you to FEEL THE BURN.
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Aerobic
• Cellular respiration is an aerobic process because it requires oxygen.
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