Describe a control respirometer.
Different apparatus - use dead seeds/peas instead of germinating seeds/peas
The same apparatus - use dead seeds/peas instead of germinating seeds/peas
Different apparatus and use glass beads instead of a living organism
The same apparatus but use glass beads instead of a living organism
What type of energy is stored in glucose?
Light
Chemical
What is the word equation for fermentation in plants and yeast?
Carbon dioxide + water → glucose + oxygen
Glucose → carbon dioxide + ethanol + ATP (energy)
Glucose + oxygen → carbon dioxide + water + ATP (energy)
Glucose → lactate + ATP (energy)
Where is the process of fermentation completed in a cell?
Mitochondria
Cytoplasm
Vacuole
Nucleus
Name product T in aerobic respiration.
Pyruvate
Water
Ethanol
Lactate
What molecule is generated from the release of energy from the breakdown of glucose?
Carbon dioxide
ATP
Ethanol
Lactate
What happens in the first stage of respiration?
Glucose is broken down to 2 molecules of pyruvate and 1 molecule of ATP
Glucose is broken down to 4 molecules of pyruvate and 4 molecules of ATP
Glucose is broken down to 2 molecules of pyruvate and 2 molecules of ATP
Glucose is broken down to 1 molecule of pyruvate and 2 molecules of ATP
What happens to the carbon dioxide produced by respiration in a respirometer?
It is absorbed by the soda lime or sodium hydroxide
It moves down the tube
It moves up the tube
It is absorbed by the organism
Why do muscle cells have lots of mitochondria?
To provide more energy for molecules or ions to move by active transport
To provide more energy for the sperm to swim to the egg
To provide more energy to the muscles for muscle contraction
To provide more energy to carry oxygen
In the fermentation pathway in animal cells, what are the pyruvate molecules converted to?
Ethanol and carbon dioxide
Lactate and Carbon dioxide
Lactate
Carbon dioxide and water
What name is given to this piece of apparatus that measures the rate of respiration of the maggots?
Petri dish
Respirometer
What does a control respirometer show?
Shows that the organism is producing oxygen
Shows that the organism is producing glucose
Shows that the organism is respiring
Shows that the organism is photosynthesising
How many ATP molecules are produced from the breakdown of each glucose molecule in fermentation?
3
1
2
4
What type of molecules control respiration?
Glucose
Enzymes
Pyruvate
ATP
How can temperature be kept constant in a respirometer?
Placing it in a plastic bag
Placing it in a petri dish
Placing it in a water bath
Placing it in a balance
In what type of conditions does the fermentation pathway take place?
Absence of oxygen
Presence of oxygen
Absence of carbon dioxide
Presence of carbon dioxide
In the fermentation pathway in plant and yeast cells, what are the pyruvate molecules converted to?
Lactate
Ethanol and water
Ethanol and carbon dioxide
Carbon dioxide and water
What do cells that need lots of energy have?
Lots of nuclei
Lots of chloroplasts
Lots of ribosomes
Lots of mitochondria
Which of these is NOT a cellular activity that ATP can be used for?
cell division
muscle cell contraction
transmission of nerve impulses
enzyme activity
Where is aerobic respiration completed in a cell?
Nucleus
Mitochondria
Vacuole
Cytoplasm
How many ATP molecules are produced from aerobic respiration?
none
a small number
a large number
What does the dye moving up the tube show in a respirometer?
The organism is taking in carbon dioxide
The organism is producing carbon dioxide
The organism is taking in oxygen
The organism is producing oxygen
Where is aerobic respiration completed in a cell?
Vacuole
Nucleus
Cytoplasm
Mitochondria
Name product S in aerobic respiration.
Water
Carbon dioxide
Pyruvate
Lactate
What are the products of aerobic respiration?
Lactate and ATP
Carbon dioxide, water and ATP
Ethanol, carbon dioxide and ATP
Ethanol, water and ATP
Where does Respiration begin in a cell?
Cytoplasm
Mitochondria
Nucleus
Chloroplast
In Aerobic Respiration, what does the further breakdown of pyruvate depend on?
presence or absence of Ethanol
presence or absence of carbon dioxide
presence or absence of ATP
presence or absence of oxygen
What is the word equation for fermentation in animals?
Glucose → lactate + ATP (energy)
Carbon dioxide + water → glucose + oxygen
Glucose → carbon dioxide + ethanol + ATP (energy)
Glucose + oxygen → carbon dioxide + water + ATP (energy)
What is the word equation for aerobic respiration?
Glucose → lactate + ATP (energy)
Carbon dioxide + water → glucose + oxygen
Glucose + oxygen → carbon dioxide + water + ATP (energy)
Glucose + oxygen → carbon dioxide + ethanol + ATP (energy)
Why do sperm have lots of mitochondria?
To provide more energy for the sperm to swim to the egg
To provide less energy to carry oxygen
To provide less energy for the sperm to swim to the egg
To provide more energy to carry oxygen
Which stage from the diagram below releases more ATP in aerobic respiration?
2
1