Respiration Flashcards
Where does respiration occur
In the mitochondria
What type of reaction is respiration
Metabolic
Specifically a catabolic
What is the equation for respiration
Oxygen + glucose
——->
Co2 + water + ATP
Why do people breathe heavily after exercise
To repay the oxygen debt
Oxygen is needed to break down the lactate build up
How many ATP are made in anaerobic respiration?
2
What is the respiratory rate?
Rate an organism converts glucose to co2 + water
How do you calculate the respiratory rate
Measuring the organism’s rate of oxygen consumption
In a respirometer experiment, what happens to the coloured dye?
If organism respires,
Oxygen moves up,
Causes change in pressure,
Coloured dye moves towards it
What the the equation for the respiratory quotient
RQ =
Volume oxygen taken in
Which respiratory substrate(s) are aerobic
Lipids
Proteins
Carbohydrates
During anaerobic respiration, how is glycolysis able to continue?
When pyruvate is converted to lactate, NADH is regenerated to NAD+
In a respirometer experiment, why is there a syringe?
To draw the fluid back
This allows you to do the test again (it resets it)
In a respirometer experiment, why is there a clip above the tube?
Stops movement of air/oxygen in and out the tube
Name 4 respiratory substrates
Glucose
Carbohydrate
Lipid
Protein
Which respiratory substrate(s) are anaerobic
Glucose
What is the respiratory quotient of glucose
More than 1
What is the respiratory quotient of lipids
Approx 0.7
What is the respiratory quotient of proteins
Approx 0.9
What is the respiratory quotient of carbohydrate
1
When doing an anaerobic test, why is there a layer of oil?
the oil allows the co2 through but not the oxygen
What happens to the syringe if you cut off the oxygen supply to yeast
The gas in the syringe would increase as co2 is given off
What happens to the gas in the syringe (in the yeast test) if there is oxygen available
The syringe won’t move as yeast uses o2 and gives off the same amount of co2 so no change in the amount
What is made from pyruvate during anaerobic respiration in humans?
Lactic acid
Alcohol and co2
What is made from pyruvate during anaerobic respiration in yeast and some plants?
Ethanol
And
Co2
