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8.3 READ Qs1-IDENTIFY In the Kreb’s cycle what is pyruvate converted to?
2- IDENTIFY: Complete the figure by writing the location of each stage of cell respiration
-carbon dioxide
-cytoplasm-mitochondria-mitochondria membrane
8.3 READ Qs3-DEFINE What 2 processes make up anaerobic respiration?
4- CLASSIFY What type of organisms have cells that carry out all of the process shown?
-glycolysis-fermentation
-plants[autotrophs]
8.3 DATA ANALYSIS1-ANALYZE how did the virus affect lactic acid production in the cells?
-virus increased lactic acid production after 4 hours
8.3 DATA ANALYSIS2- CALCULATE After 8 hours what percentage was the lactic acid higher in the virus group than in the control group?By what percentage was ATP production decreased?-lactic acid
increased ~75%[7 - 4=3 : 3/4 = .75]
-ATP production decreased ~28%[7 – 5 = 2 : 2/7 = .28]
8.3 DATA ANALYSIS2- INFER why having a virus like the flu might make a person feel tired.
-decreased ATP synthesis
8.3 CELLULAR RESPIRATIONWHAT YOU WILL LEARN:-product of each stage of cell resp-the role of electron carriers in cell resp-the difference between alcoholic
fermentation and lactic-acid fermentation
"Cell Respiration"
MAIN IDEA-Living organisms obtain energy by
breaking down organic compounds during cellular respiration
OVERVIEW of CELLULAR RESPIRATION
-FUNCTION of cellular respiration— makes ENERGY for cells
LIST organisms that carry out CELLULAR RESPIRATION?
- plants / animals / prokaryotes
LIST the organelle where cellular respiration takes place ---
- mitochondria
IDENTIFY the chemical equation for cell respiration:
-C6H12O6 + 6O2 6CO2 + 6H2O + energy
OVERVIEW of CELLULAR RESPIRATION
IDENTIFY energy form used during cell respirationchemical light mechanical
IDENTIFY energy form produced during cell respiration chemical light mechanical
DETERMINE total energy produced during cell resp---ATP = __________-NADH+ = __________
cellular respiration (SUGAR GOES TO ATP)
~36
~10
IMPORTANT STRUCTURES of CELL RESP
HOW CELLS OBTAIN ENERGY http://www.youtube.com/watch?v=i8c5JcnFaJ0
PHASES of CELLULAR RESPIRATIONPHASES of “AEROBIC” CELLULAR RESPIRATION
PHASE LOCATION MAIN ACTIVITY HIGH-ENERGY MOLECULES MADE per GLUCOSE MOLECULE
GLYCOLYSIS
KREBS CYCLE
ELECTRON TRANSPORT
OVERALL
cytoplasm
mitochondria
mitochondrial membrane
glucosepyruvate
pyruvateCO2
e- + H+ + O2 H2O + ATP
-2 ATP net-2 NADH+-2 ATP net-8 NADH+~32 ATP net
~36 ATP net~10 NADH+
CELLULAR RESPIRATION
Photosynthesis and Respiration - YouTube
ANAEROBIC RESPIRATION-NO O2 CAUSE:
CELLS CAN’T GET ENOUGH OXYGEN
FERMENTATION FOLLOWS: GLYCOLYSIS
IT REPLACES: KREB’S CYCLE AND
ELECTRON TRANSPORT
FERMENTATION IS NEEDED TO
REPLENISH SUPPLY OF NAD+ FOR GLYCOLYSIS
2 ATP
STEP 1-GLYCOLYSISbreaks down glucose
cytoplasm anaerobic - NO O2 needed
needs 2 ATP molecules to start
• EACH GLUCOSE MOLECULE NETS:2 ATP molecules
2 NADH 2 molecules of pyruvate
STEP 2-KREB’S CYCLEbreaks down pyruvate -- forms CO2
mitochondria of cellaerobic - requires O2
• EACH MOLECULE GLUCOSE PRODUCES: 2 ATP 8 NADH
4 CO2
STEP 3-ELECTRON TRANSPORTATP made from high-energy electrons & protons
mitochondrial membraneaerobic - requires O2
• EACH GLUCOSE MOLECULE PRODUCES:32 ATPelectrons & protons w/O2 make H2O
ANAEROBIC RESPIRATION-FERMENTATIONNO O2 present--
LACTIC ACID FERMENTATION
-produced in muscles during strenuous exercise-not enough O2
-lactic acid produced by many microorganisms
-used in making yogurt, sour cream, cheese
ALCOHOL FERMENTATIO
N-used in making
beer & wine -occurs in
organisms such as bacteria/yeast
CELLULAR RESPIRATION