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Ch 7 Cellular Respiration
glucose Converting __________________ into __________________ ATP
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Transfer of ENERGY… ATP plants Complex organisms
Light energy PHOTOSYNTHESIS sugar energy CELLULAR RESPIRATION ATP
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Do plants do cellular respiration?
Yep! Why? Their photosynthesis makes their _______ Then their C.R. makes their _______ sugar ATP we all need love...and ATP!
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GLUCOSE in-text, p. 112
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What is the equation for CELLULAR RESPIRATION?
6 6 6 O2 CO2 H20 C6H12O6 _______ + _______ _______ + _______ how do we BALANCE this? What is the equation for PHOTOSYNTHESIS? _______ + _______ _______ + _______
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<<LINK>>
Cellular Respiration glucose <<LINK>> GLYCOLYSIS pyruvic acid O2 aerobic no O2 anaerobic CONVERSION STEP acetyl CoA FERMENTATION KREBS CYCLE lactic acid ethyl alcohol ATP ETC
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GLYCOLYSIS - lysis: splitting - glyc: glucose
<--2 ATP -->2 ADP PGAL <-- 2 NAD+ --> 2 NADH +2 P <<LINK>> <-- 4 ADP --> 4 ATP pyruvic acid
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Cellular Respiration glucose --> 2 ATP 2 NADH pyruvic acid
GLYCOLYSIS 2 NADH pyruvic acid O2 aerobic no O2 anaerobic CONVERSION STEP acetyl CoA FERMENTATION KREBS CYCLE lactic acid ethyl alcohol ATP ETC
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CONVERSION STEP 2 pyruvic acid <-- 2 NAD+ --> 2 NADH
+2 coenzyme A (CoA) <-- 2 CO2 2 acetyl CoA
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Cellular Respiration glucose --> 2 ATP 2 NADH pyruvic acid
GLYCOLYSIS 2 NADH pyruvic acid O2 aerobic no O2 anaerobic CONVERSION STEP 2 NADH acetyl CoA FERMENTATION KREBS CYCLE lactic acid ethyl alcohol ATP ETC
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<<LINK>>
KREBS CYCLE acetyl CoA oxaloacetic acid citric acid 2 turns FADH NAD+ FAD+ NADH NADH NAD+ NAD+ ADP NADH <<LINK>> ATP
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Cellular Respiration glucose --> 2 ATP 2 NADH pyruvic acid
GLYCOLYSIS 2 NADH pyruvic acid O2 aerobic no O2 anaerobic CONVERSION STEP 2 NADH acetyl CoA FERMENTATION --> 2 ATP KREBS CYCLE 6 NADH lactic acid ethyl alcohol 2 FADH ETC ATP
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ETC NADH FADH2
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ETC ATP INNER COMPARTMENT ADP + Pi atp synthase Fig. 7.7b, p. 116
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Cellular Respiration glucose --> 2 ATP 2 NADH pyruvic acid
GLYCOLYSIS 2 NADH pyruvic acid O2 aerobic no O2 anaerobic In AEROBIC RESPIRATION, How many ____ did you make? NADH? = FADH? = ATP? = CONVERSION STEP 2 NADH acetyl CoA FERMENTATION --> 2 ATP 10 KREBS CYCLE 6 NADH 2 FADH 2 ETC ATP 4
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So, who does down the ETC? no O2 anaerobic x 3 = 30 ATP 10 2
In AEROBIC RESPIRATION, How many ____ did you make? NADH? = FADH? = ATP? = no O2 anaerobic x 3 = 30 ATP 10 FERMENTATION 2 x 2 = 4 ATP 4
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ETC NADH FADH2
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ATP 34 atp synthase ETC ????? INNER COMPARTMENT ADP + Pi
Fig. 7.7b, p. 116
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Cellular Respiration glucose --> 2 ATP 2 NADH pyruvic acid
GLYCOLYSIS 2 NADH pyruvic acid O2 aerobic no O2 anaerobic CONVERSION STEP 2 NADH acetyl CoA FERMENTATION --> 2 ATP KREBS CYCLE 6 NADH lactic acid ethyl alcohol 2 FADH 38 ATP ETC
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FERMENTATION glycolysis pyruvic acid glucose lactic acid
LACTIC ACID FERMENTATION glycolysis pyruvic acid glucose NADH + H NAD+ lactic acid
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FERMENTATION glucose pyruvic acid glycolysis CO2 ethyl alcohol
ALCOHOLIC FERMENTATION glucose pyruvic acid glycolysis NAD+ NADH + H CO2 ethyl alcohol 2C compound
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Which fermentation do you think Bees undergo with the nectar sugar?
<<LINK>>
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Cellular Respiration glucose --> 2 ATP 2 NADH pyruvic acid
GLYCOLYSIS 2 NADH pyruvic acid O2 aerobic no O2 anaerobic CONVERSION STEP 2 NADH acetyl CoA --> 0 ATP FERMENTATION --> 2 ATP KREBS CYCLE 6 NADH lactic acid ethyl alcohol 2 FADH 38 ATP ETC
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Now… WHERE does each take place?
cytosol = cytoplasm Glycolysis Conversion step Krebs Cycle ETC Fermentation matrix matrix cristae cytosol = cytoplasm
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cristae ETC inner compartment outer compartment cytoplasm
outer mitochondrial membrane ETC inner mitochondrial membrane (see next slide) Fig. 7.5a, p. 114
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ELECTRON TRANSPORT PHOSPHORYLATION
glucose GLYCOLYSIS pyruvate KREBS CYCLE ELECTRON TRANSPORT PHOSPHORYLATION <<LINK>> in-text, p. 116
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1 Pyruvate from cytoplasm enters inner mitochondrial compartment.
OUTER COMPARTMENT 4 As electrons move through the transport system, H+ is pumped to outer compartment. NADH 3 NADH and FADH2 give up electrons and H+ to membrane-bound electron transport systems. acetyl-CoA NADH Krebs Cycle NADH ATP ATP 5 Oxygen accepts electrons, joins with H+ to form water. 2 Krebs cycle and preparatory steps: NAD+ and FADH2 accept electrons and hydrogen stripped from the pyruvate. ATP forms. Carbon dioxide forms. ATP ATP free oxygen ADP + Pi INNER COMPARTMENT 6 Following its gradients, H+ flows back into inner compartment, through ATP synthases. The flow drives ATP formation. Fig. 7.5b, p. 114
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What is the equation for CELLULAR RESPIRATION?
6 6 6 O2 CO2 H20 C6H12O6 _______ + _______ _______ + _______ Is this an AEROBIC OR ANAEROBIC respiration equation? Hmm… we use glucose in ___________________________ So where do we use oxygen??? glycolysis ETC !
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ATP H2O !! u breathe out water vapor O H+ + + <<LINK>> 34
ETC O H+ ATP + + ????? INNER COMPARTMENT <<LINK>> 34 ADP + Pi atp synthase Fig. 7.7b, p. 116
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KILOCALORIE Measurement of energy =1000 calories
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What is the energy efficiency of?
2 ATP Glycolysis Conversion step Krebs Cycle ETC Fermentation ! 0 ATP 2 ATP lots of kcal! ! 34 ATP ! 0 ATP ETC which process is the MOST efficient?
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What is EFFICIENCY? Efficiency is how much energy you released from the energy you used.. Efficiency = (#ATP made) x 12kcal 686kcal What is the effiency of aerobic respiration? = (38 x 12)/ 686 = .66 = 66% What is the efficiency of glycolysis? = (2 x 12)/ = .035 = 3.5%
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HW – p. 140 #1-15 Due Tom. - Ch 7 Quest Wed.
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1. What is glycosis’s effiency %?
2. What 2 molecules go to the ETC after being formed in the Krebs cycle? 3. How many ATP are made in glycolysis? in Krebs cycle? In ETC? as AEROBIC total? 4. Where does Krebs cycle take place? 5. In what process of C.R. do u use oxygen? 6. How do you form water in C. R. ?
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Cellular Respiration glucose pyruvic acid O2 aerobic no O2 anaerobic
GLYCOLYSIS pyruvic acid O2 aerobic no O2 anaerobic CONVERSION STEP acetyl CoA FERMENTATION KREBS CYCLE lactic acid ethyl alcohol ATP ETC
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