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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
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
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
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
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
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