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Energy producing pathways PHOTOSYNTHESIS I. Preview of photosynthesis II. Photosynthetic reactions III. Light dependent reactions IV. Light independent reactions V. Summary of events and importance of photosynthesis RESPIRATION I. ATP producing pathways II. Aerobic respiration A. Overview of the reaction B. Glycolysis C. Krebs Cycle D. Electron transport and chemiosmosis III. Anaerobic respiration IV. Fermentation A. Lactate fermentation B. Alcoholic fermentation V. The metabolism of energy sources VI. The carbon cycle

Energy producing pathways PHOTOSYNTHESIS I. Preview of photosynthesis II. Photosynthetic reactions III. Light dependent reactions IV. Light independent

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Energy producing pathways

PHOTOSYNTHESISI. Preview of photosynthesisII. Photosynthetic reactionsIII. Light dependent reactionsIV. Light independent reactionsV. Summary of events and importance of photosynthesis

RESPIRATIONI. ATP producing pathwaysII. Aerobic respiration

A. Overview of the reactionB. GlycolysisC. Krebs CycleD. Electron transport and chemiosmosis

III. Anaerobic respirationIV. Fermentation

A. Lactate fermentationB. Alcoholic fermentation

V. The metabolism of energy sourcesVI. The carbon cycle

PhotosynthesisI. Preview of photosynthesisII. Photosynthetic reactionsIII. Light dependent reactionsIV. Light independent reactionsV. Summary of events and importance of photosynthesis

6CO2 +6H2O C6H12O6 +

6O2

Light energy

III. Light dependent reactions

Capturing of light: chlorophyll

Production of ATP/ NADPH

Photo

ATP synthase

phosphorylation

2H2O 4H+ + 4e- + O2

IV. Light independent reactions

Rubisco

Glucose

CO2 Fixation

V. Summary of events and importance of photosynthesis

primary producers

Oxidation or reduction?Catabolic or anabolic?

Light energy6CO2 + 6H2O C6H12O6 + 6O2

What is the fate of the electrons that are split from water?

a. they are absorbed by oxygenb. they are used in electron transport to

generate ATPc. they diffuse out of the plantd. they are absorbed by NADPHe. more than one of these is correct

Which of the following is NOT a characteristic of RUBISCO?

a. it fixes carbon into the Calvin cycleb. it is a proteinc. it is the most common enzyme in the worldd. it makes really good crackers

Which of the following is the second step in the light dependent reactions?

a. photolysisb. phosphorylationc. capturing of light by chlorophylld. electron transport

Which of the following is correct about photosynthesis?

a. it is overall a process of reductionb. it is overall, endergonicc. it is overall, anabolicd. it is in the end creating potential energye. all of the above

RespirationI. ATP producing pathwaysII. Aerobic respiration

A. Overview of the reactionB. GlycolysisC. Krebs CycleD. Electron transport and

chemiosmosisIII. Anaerobic respirationIV. Fermentation

A. Lactate fermentationB. Alcoholic fermentation

V. The metabolism of energy sourcesVI. The carbon cycle

I. ATP producing pathways

Pathway Yield ATP per glucoseWho does

itWhere its done

O2 ?

Aerobic respiration 36-38

Most prokaryotes;All eukaryotes

Cytoplasm, mitochondriaessential

Anaerobic respiration

10-38 Some prokaryotes Cytoplasm

toxic

Fermentation 2Some prokaryotes; some eukaryotes Cytoplasm inhibits

II. Aerobic respirationA. Overview of the reaction

3 steps1. glycolysis

2. Citric Acid cycle

3. Oxidativephosphorylation

What is the function of NADH?a. to provide energy for endergonic reactionsb. to carry electrons to electron transport

chainsc. to facilitate the breakdown of glucosed. to carry ATP across the mitochondrial

membrane

B. Glycolysis

B. Glycolysis

Takes place?

End result

Products

Where does glycolysis take place?a. the inner membrane of the mitochondrionb. in the cytoplasmc. the outer membrane of the mitochondriond. on the ribosome

How many NADH are generated in glycolysis?a. 1 b. 2 c. 4 d. 8

How many ATP are produced in glycolysis?a. 1 b. 2 c. 4 d. 8

What is the first step of glycolysis?a. phosphorylation of glucoseb. generation of ATPc. generation of NADHd. splitting of glucose

What is the main purpose of the glycolysis and the Citric Acid cycle?

a. generation of ATPb. production of CO2c. generation of NADHd. splitting of glucose

Mitochondrion structure

Bridge Step

C. Citric Acid CycleTakes place?

End result

Products

How many ATP are produced in the Citric Acid cycle?a. 1 b. 2 c. 4 d. 8

How many NADH are generated in the Citric Acid cycle?a. 1 b. 2 c. 4 d. 6

How many CO2 are generated in the Citric Acid cycle?a. 1 b. 2 c. 4 d. 6

D. Oxidative PhosphorylationTakes place? End result? Products?

Final e- acceptorOxidation or reduction?Electron donors

What does the flow of electrons in e- transportgenerate?

a. protonsb. ATPc. NADHd. bioelectricity

For what is the bioelectricity generated used?a. to phosphorylate ADPb. to generate e- carriersc. to power protein pumps to pump protonsd. to energize O2

If a poison blocked the oxidation of NADH, which process would stop first?

a. glycolysisb. Krebs cyclec. electron transportd. chemiosmosis

What does glucose provide directly for aerobic respiration?a. Energy for metabolismb. Energy for ATPc. Electrons for NAD+d. Bioelectricity for electron transport

Aerobic Respiration Summary

III. Anaerobic respirationGlycolysis, Krebs cycle, Oxidative phosphorylation

Yield?Oxygen?

Who does it?

Archaea

Clostridium botulina

methanogensCO2 CH4

NO3- NH3

What is the main difference in the process of anaerobic respiration versus aerobic?a. There is no differenceb. Anaerobic is done by prokaryotes and aerobic by eukaryotesc. The final electron acceptor is differentd. The maximum number of ATP generated is different

IV. FermentationA. Lactic acid fermentationB. Alcoholic fermentation

Yield?Oxygen?

Who does it?

Fermentation summary

What is the purpose of the last step (s) in glycolysis?a. Generation of ATPb. Recycling of NAD+c. Production of CO2d. Splitting of glucose

V. The metabolism of energy sources

VI. The carbon cycle

The end