Paper 1 H - SAMPLE SET 1 Q4
4) All living cells respire.
4.1) Respiration transfers energy from glucose for muscle contraction.
Describe how glucose from the small intestine is moved to a muscle cell. [2 marks]
Figure 2 shows an experiment to investigate anaerobic respiration in yeast cells.
4.1) Respiration transfers energy from glucose for muscle contraction.
Describe how glucose from the small intestine is moved to a muscle cell. [2 marks]
Figure 2 shows an experiment to investigate anaerobic respiration in yeast cells.
4.2) What is the purpose of the liquid paraffin in Tube A?
[1 mark]
Tick one box.
Tick one box.
The indicator solution in Tube B shows changes in the concentration of carbon dioxide (CO2).
The indicator is:
• blue when the concentration of CO2 is very low
• green when the concentration of CO2 is low
• yellow when the concentration of CO2 is high.
4.3) What colour would you expect the indicator to be in Tube B during maximum rate of anaerobic respiration? [1 mark]
Tick one box.
The indicator is:
• blue when the concentration of CO2 is very low
• green when the concentration of CO2 is low
• yellow when the concentration of CO2 is high.
4.3) What colour would you expect the indicator to be in Tube B during maximum rate of anaerobic respiration? [1 mark]
Tick one box.
4.4) Suggest how the experiment could be changed to give a reproducible way to measure the rate of the reaction.
Include any apparatus you would use. [2 marks]
4.5) Compare anaerobic respiration in a yeast cell with anaerobic respiration in a muscle cell. [3 marks]
(Total for Question 4 = 9 marks)
Include any apparatus you would use. [2 marks]
4.5) Compare anaerobic respiration in a yeast cell with anaerobic respiration in a muscle cell. [3 marks]
(Total for Question 4 = 9 marks)