Topic 3.2: Cell Respiration Questions

Why do cells carry out respiration?

In which part of a human cell does aerobic respiration take place?

State the product, and the location in the cell, of anaerobic respiration in human muscle cells.

Draw a diagram showing the ATP-ADP cycle.

State two cellular processes that are powered by converting ATP into ADP.

State the role of potassium hydroxide (KOH) in a respirometer.

In which part of an ATP molecule is the readily usable energy stored?

What does the 'respiration rate' of an organism measure?

Why is ATP described as the cell's energy currency?

A student investigates respiration by adding glucose solution to a suspension of yeast cells. State the function of the glucose in this experiment.

What single feature distinguishes aerobic respiration from anaerobic respiration?

Describe the control used in a respirometer experiment and explain why it is necessary.

Which process supplies the energy needed to recharge ADP + Pi back into ATP?

A student measures respiration rate from the oxygen taken up by germinating seeds. Which of these is another valid quantity that could be measured to determine respiration rate?

Outline why the coloured liquid in a respirometer of living seeds with KOH moves towards the seeds.

During an intense sprint the oxygen supply to a runner's leg muscles cannot keep up with demand. How do the muscle cells respond?

A respirometer holds living seeds together with KOH. Over ten minutes the coloured liquid in the tube moves towards the seeds. What does this movement show?

Aerobic and anaerobic respiration both release energy from glucose, but in different ways. Distinguish between aerobic and anaerobic respiration in terms of the use of oxygen, the location in the cell, the relative amount of ATP released, and the products formed in human cells.

Which of the following is a cellular process powered by converting ATP into ADP?

An insulated flask of germinating seeds is fitted with a thermometer, and the temperature slowly rises over an hour. Which statement best explains this observation?