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Transcript
Warm-Up # 12
12/7/12
1) Where do light dependent reactions
take place?
2) How are the equations of respiration
and photosynthesis similar?
3) List the three parts of ATP.
4) Photosynthesis is to chloroplasts as
cell respiration is to_____________.
5) Where on the ATP molecule is a bond
broken to make ADP?
Respiration
Unit 5
What are we doing?
• Essential Question:
– Could Cellular
Respiration take
place if plants were
not available?
• Objectives:
• Explain Cellular
Respiration
• Describe what
happens during
glycolysis
• Name two types of
fermentation
We Need Plants, We Need
Food
• Photosynthesis is directly related to Cellular
Respiration.
• Final products of photosynthesis is used for
cellular respiration.
• They form a cycle that stays fairly constant.
We Use Each Other…
• PHOTOSYNTHESIS EQUATION:
6CO2 + 6H2O + LIGHT ENERGY C6H12O6 + 6O2
• CELLULAR RESPIRATION EQUATION:
C6H12O6 + 6O2 6CO2 + 6H2O + ENERGY RELEASED
(ATP)
Organic
compounds
Glycolysis
Fermentation
(anaerobic)
ATP
Aerobic
respiration
ATP
Cellular Respiration
• The process that releases energy by
breaking down glucose and other
food molecules in the presence of
oxygen
• Three Main Stages
• Main goal to produce ATP
Stage 1
• GLYCOLYSIS-process in which one
molecule of glucose is broken in half
producing two molecules of Pyruvic
Acid
• 2 ATP go in (to get things going) 4
ATP are produced
• NADH is made from NAD+ (helps
energy get passed along)
• Happens in the Cytosol/Cytoplasm
Two Types of Cellular
Respiration
AEROBIC-PRESENCE
OF OXYGEN
(Also can be called
Respiration)
ANAEROBIC-ABSENCE
OF OXYGEN
(Also can be called
Fermentation)
Stage 2 (WITH OXYGEN)
• RESPIRATION
• Uses oxygen to release energy
• Happens in the Mitochondria.
• Pyruvic acid is passed and broken
down in the Kreb’s/Citric Acid Cycle
Stage 2 (Without Oxygen)
Anaerobic respiration/Fermentation.
• Lactic Acid
Fermentation
• Animals—produced
in your muscles
(sore)
• End product is
lactic acid and
NAD+
• Pickles, yogurt,
cheese
• Alcoholic
Fermentation
• Yeast and few other
microorganisms
• Makes is ethyl
alcohol and carbon
dioxide
• Bread
Electron Transport Chain
• Converts ADPATP
• Produces the most ATP (32 or 34)
• Occurs on cristae of mitochondria
• Electrons pass from one acceptor
giving off energy.
• Final electron acceptor is oxygen
making water.
Energy Tally
• 36 ATP for aerobic vs. 2 ATP for
anaerobic
– Glycolysis
– Kreb’s
– Electron Transport
2 ATP
2 ATP
32 ATP
36 ATP
• Anaerobic organisms can’t be too
energetic but are important for global
recycling of carbon
Cellular Respiration
Breakdown
FUNCTION
Energy Release
Location
Mitochondria
Reactants (What goes C6H12O6 and O2
in)
Products (What comes CO2 and H20
out)
602+C6H12O66CO2
Equation
+6H2O
Word Bank:
2 ATP
32/34 ATP
4 NADH
1 FADH
Alcohol Fermentation
Electron transport chain
Ethyl Alcohol
Mitochondrion
Cytoplasm/cytosol
Fermentation
Glycolysis
Glucose
Pyruvate/Pyruvic Acid
Lactic acid
Lactic Acid Fermentation
Kreb's Cycle
Unit 5 Study Guide
• FINISH the respiration part of the study
guide now
• Whatever you do not finish is
homework
• QUIZ TOMORROW!!!