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Flashcards in Respiration Deck (24)
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1
Q

Where does respiration occur

A

In the mitochondria

2
Q

What type of reaction is respiration

A

Metabolic

Specifically a catabolic

3
Q

What is the equation for respiration

A

Oxygen + glucose
——->
Co2 + water + ATP

4
Q

Why do people breathe heavily after exercise

A

To repay the oxygen debt

Oxygen is needed to break down the lactate build up

5
Q

How many ATP are made in anaerobic respiration?

A

2

6
Q

What is the respiratory rate?

A

Rate an organism converts glucose to co2 + water

7
Q

How do you calculate the respiratory rate

A

Measuring the organism’s rate of oxygen consumption

8
Q

In a respirometer experiment, what happens to the coloured dye?

A

If organism respires,
Oxygen moves up,
Causes change in pressure,
Coloured dye moves towards it

9
Q

What the the equation for the respiratory quotient

A

RQ =

Volume oxygen taken in

10
Q

Which respiratory substrate(s) are aerobic

A

Lipids
Proteins
Carbohydrates

11
Q

During anaerobic respiration, how is glycolysis able to continue?

A

When pyruvate is converted to lactate, NADH is regenerated to NAD+

12
Q

In a respirometer experiment, why is there a syringe?

A

To draw the fluid back

This allows you to do the test again (it resets it)

13
Q

In a respirometer experiment, why is there a clip above the tube?

A

Stops movement of air/oxygen in and out the tube

14
Q

Name 4 respiratory substrates

A

Glucose
Carbohydrate
Lipid
Protein

15
Q

Which respiratory substrate(s) are anaerobic

A

Glucose

16
Q

What is the respiratory quotient of glucose

A

More than 1

17
Q

What is the respiratory quotient of lipids

A

Approx 0.7

18
Q

What is the respiratory quotient of proteins

A

Approx 0.9

19
Q

What is the respiratory quotient of carbohydrate

A

1

20
Q

When doing an anaerobic test, why is there a layer of oil?

A

the oil allows the co2 through but not the oxygen

21
Q

What happens to the syringe if you cut off the oxygen supply to yeast

A

The gas in the syringe would increase as co2 is given off

22
Q

What happens to the gas in the syringe (in the yeast test) if there is oxygen available

A

The syringe won’t move as yeast uses o2 and gives off the same amount of co2 so no change in the amount

23
Q

What is made from pyruvate during anaerobic respiration in humans?

A

Lactic acid

Alcohol and co2

24
Q

What is made from pyruvate during anaerobic respiration in yeast and some plants?

A

Ethanol
And
Co2