B1.3 Respiration Flashcards
What is the purpose of respiration?
To produce energy in the form of ATP from larger molecules (like sugars)
What type of reaction is respiration?
Respiration is an exothermic reaction
When does aerobic respiration take place?
When there is plenty of oxygen available
What is the word equation for aerobic respiration?
Glucose + Oxygen → Carbon dioxide + Water (+ energy)
What is the symbol equation for aerobic respiration?
C6H12O6 + 6O2 → 6CO2 + 6H2O (+energy)
When does anaerobic respiration take place?
When there is no oxygen available
What does anaerobic respiration in animals produce?
Lactic acid and energy
What does anaerobic respiration in yeast produce?
Ethanol (alcohol), carbon dioxide and energy
Which type of respiration produces more ATP?
Aerobic respiration which produces 36 ATP compared to anaerobic respiration which produces only 2 ATP
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What is the oxygen debt?
The extra oxygen that is needed to break down the lactic acid formed in anaerobic respiration
What type of molecules are carbohydrates and proteins?
They are polymers
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What are the monomers that make up proteins?
Amino acids
What type of enzymes break down carbohydrates?
Carbohydrases
What type of enzymes break down proteins?
Proteases
What type of enzymes break down lipids and what are they broken down into?
Lipids are broken down by lipases into glycerol and fatty acids
