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AQA A LEVEL BIOLOGY PAPER 1,7402/1|PAPER 2,7402/2|PAPER 3,7402/3
AQA A LEVEL BIOLOGY PAPER 1,7402/1|PAPER 2,7402/2|PAPER 3,7402/3 VERSION 1.0 FINAL QUESTION PAPERS & MERGED MARKING SCHEME | JUNE 2023|SUCCESS GUARANTEED
[Show more]AQA A LEVEL BIOLOGY PAPER 1,7402/1|PAPER 2,7402/2|PAPER 3,7402/3 VERSION 1.0 FINAL QUESTION PAPERS & MERGED MARKING SCHEME | JUNE 2023|SUCCESS GUARANTEED
[Show more]Give the three structural features found in all virus particles and describe the function 
of one of these features. 
[2 marks] 
1 2 3 
Function of one named feature 
0 1 . 2 Explain why viruses are described as acellular and non-living. 
[2 marks] 
0 1 . 3 Give one reason why antibiotics are not ef...
Preview 4 out of 64 pages
Add to cartGive the three structural features found in all virus particles and describe the function 
of one of these features. 
[2 marks] 
1 2 3 
Function of one named feature 
0 1 . 2 Explain why viruses are described as acellular and non-living. 
[2 marks] 
0 1 . 3 Give one reason why antibiotics are not ef...
A student used chromatography to separate the different photosynthetic pigments in a 
chlorophyll solution. She had the following materials. 
Chromatography paper 
A ruler and pencil 
Suitable glassware 
A solvent (solvent A) 
2 cm3 of the chlorophyll solution 
Describe how she could use these mater...
Preview 4 out of 54 pages
Add to cartA student used chromatography to separate the different photosynthetic pigments in a 
chlorophyll solution. She had the following materials. 
Chromatography paper 
A ruler and pencil 
Suitable glassware 
A solvent (solvent A) 
2 cm3 of the chlorophyll solution 
Describe how she could use these mater...
Describe how stimulation of a Pacinian corpuscle produces a generator potential. 
[3 marks] 
Scientists investigated the stimulation of a Pacinian corpuscle in the skin of a fingertip. 
The scientists applied two different pressures to the fingertip and recorded the 
changes in membrane potential of...
Preview 4 out of 68 pages
Add to cartDescribe how stimulation of a Pacinian corpuscle produces a generator potential. 
[3 marks] 
Scientists investigated the stimulation of a Pacinian corpuscle in the skin of a fingertip. 
The scientists applied two different pressures to the fingertip and recorded the 
changes in membrane potential of...
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