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