Biology Topic Practice

Investigating Respiration Rate

We can measure the rate of respiration in living organisms like seeds or small insects using a respirometer.

How does a respirometer measure oxygen uptake?

What is Investigating Respiration Rate?

"The respiration practical uses a respirometer to quantify the oxygen consumption of living organisms over time."

Question 1

Anaerobic respiration in yeast is also called:

Question 2

Which term correctly completes this GCSE Biology equation or calculation statement? ____ change = (final − initial) ÷ initial × 100

Question 3

Which answer best completes the statement? ____ quadrat sampling uses random numbers to choose squares before placing quadrats

Question 4

GCSE Biology: Anaerobic respiration in yeast is also called:

Soda lime is used to absorb the carbon dioxide produced.

As oxygen is consumed, the pressure drops and dye moves along a tube.

The distance moved indicates the volume of oxygen used.

Exam Tip

Temperature must be controlled because respiration is an enzyme-controlled process.

The fastest way to improve your grade is to practise exam-style questions, identify your gaps, and focus only on what you don't know.

Instantly marked • No sign-up