Respiration - exam practice
Respiration
Question 1 of 4
Respiration in human cells can happen aerobically or anaerobically.
Both processes release energy from glucose.
Draw one line from each type of respiration in human cells to the correct information.
One type of respiration in humans is aerobic respiration.
What is the correct word equation for aerobic respiration?
In which cellular organelle does aerobic respiration take place?
Energy is released in respiration.
Give two uses of this energy.
When we breathe, our blood transports the oxygen from our lungs to cells in our body, where aerobic respiration takes place.
Complete the word equation for aerobic respiration.
glucose + → carbon dioxide +
Where does the glucose needed for respiration come from?
When oxygen is not available, our muscles can perform anaerobic respiration.
Name two differences between aerobic and anaerobic respiration in humans.
Do not refer to oxygen in your answer.
Micrograph 1 shows cells in muscle tissue.
Micrograph 2 shows an organelle inside a muscle cell.
The sub-cellular structure shown in micrograph 2 is where aerobic respiration happens.
What is the name of this organelle?
Complete the word equation for aerobic respiration.
+ oxygen → + water (+ energy)
The organelle shown in micrograph 2 uses oxygen.
Explain how oxygen is transported from the blood to the organelle.
A student performed an experiment to investigate anaerobic respiration in yeast cells.
Why did the student add a layer of oil to the test tube containing the yeast and glucose solution?
Suggest how the student could modify his method to ensure his results are reproducible.
How does anaerobic respiration in yeast differ from anaerobic respiration in muscle cells?