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Biochemical Reactions. Choose one of these reactions Briefly summarise what happens Why is it important? Where does it happen? Draw and label a detailed diagram of where it happens. Photosynthesis Respiration Work in pairs You will have to present your results to the class. - PowerPoint PPT Presentation
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Biochemical Reactions• Photosynthesi
s• Respiration
• Work in pairs• You will have
to present your results to the class
• Choose one of these reactions
• Briefly summarise what happens
• Why is it important?• Where does it happen?
– Draw and label a detailed diagram of where it happens
Dehydrogenase Activity in Yeast
• Effect of temperature on anaerobic respiration
• What other indicators could you use?
Dehydrogenase Activity in Yeast
• Write a detailed conclusion and evaluation for this experiment
Recap Essay on ATP• Read someone’s essay• Mark the content out of 20• The structure out of 5• The grammar out of 5
RespirationLesson 1
Respiration• What is it?• Where does it occur?
Structure of the Mitochondria
• Describe and Explain the Structure of the Mitochondria
Folded inner membrane-increase surface Area – MORE ENZYMESCRISTAE
MATRIX
ATP• How is it produced?• What is it used for?
• 10 million molecules of ATP are produced every second
Respiration
2 Types
Respiration• Briefly summarise the 2 types of
respiration– Equations– Uses– etc etc etc
Aerobic Respiration• Does petrol just explode in a car?
Aerobic Respiration• Gradual progression of steps• Requiring REDOX reactions
Aerobic Respiration• Is 37 ̊ degrees hot enough to burn a
fuel? – Explain your answer
Aerobic RespirationGlucose• What is the chemical formula for
glucose?• What is the molecular mass of
glucose?• How many grams is one mole of
glucose?• How many kJ’s of energy does one
mole of glucose produce?
Aerobic RespirationRESPIRATION STEPS1. Glycolysis2. Link Reaction3. Krebs Cycle4. Electron Transport Chain
GLYCOLYSIS
Aerobic cellular respiration isthe utilisation of oxygen by cellsfor the production of ATP
It is a series of over 20 chemicalreactions that can be divided intofour phases
The first phase is calledGlycolysis and takes
Place in the cell Cytoplasm
Glycolysis involves the breakdownof one molecule of glucose (6C) to form
2 molecules of pyruvic acid (3C) orPyruvate; there is a net production
of two atp moleculesduring this phase
Glucose
2 PyruvicAcid
Glycolysis 2ATP
GLYCOLYSISGlycolysis takes place in the 1 of cells and begins with the activation of the main respiratory substrate, namely the hexose sugar 2. This activation involves the addition of two 3 molecules provided by two molecules of 4. The resultant activated molecule is known as 5 and in the next stage of glycolysis it is split into two molecules of 6. The third stage entails the oxidation of these molecules by the removal of 7, which is transferred to a carrier called 8. The final stage is the production of the 3 carbon molecule 9 which also results in the formation of two molecules of 10.