Chapter Seven Flashcards
Who performs cellular respiration?
Plants and animals.
What is the point of cellular respiration?
It will release energy that is stored as carbohydrates
What is the cellular respiration equation?
C6H12O6 + 6O2 = 6CO2 + 6H2O + energy.
What are the molecules in cellular respiration?
ATP and Glucose
Where does cellular respiration happen?
In the mitochondria
What are the four stages?
Glycolysis
Transition stage/ pyruvate oxidation
Kerbs cycle
Electron transport chain
What is the role of ATP?
To supply the body with energy.
What happens when no oxygen is present in a cell?
The cell will carry out anaerobic cellular respiration.
What causes mucked to be tired and sore?
Lactic acid build up in muscles.
What is the difference between aerobic and anaerobic reactions?
Aerobic- uses oxygen. Creates lots of energy.
Anaerobic- does not use energy. Creates only two molecules of ATP
Describe glycolysis.
This is the first step and happens in both aerobic and anaerobic respiration. Glucose will get broken down into two pyruvate. This process happens in the cytoplasm. Net ATP 2. Net NADH 2
Describe pyruvate oxidation/ transition stage.
Occurs in the matrix( inside portion/ middle part of the mitochondria) pyruvate in converted into Acetyl-COA. CO2 is released and 2 NADH are made.
Describe Krebs cycle.
Occurs in the matrix of the mitochondria. CO2 is given off. While all three energy molecules are made: 6NADH, 2 FADH2, 2 ATP.
Describe electron transport chain.
Occurs in the inner membrane of the mitochondria. NADH and FADH2 are converted into ATP by the ATP synthase complex. Molecules are then shuttled into the inter membrane space.
What is fermentation and describe the process?
In fermentation no oxygen is present. Glycolysis will still happen producing ATP. Then the plant will turn the two pyruvate into 2 acetaldehyde (an alcohol) into ethanol.
