Plants make their own food by photosynthesis.
.1
Which word equation shows photosynthesis?
[1 mark].2
Photosynthesis is an endothermic reaction. What does this mean?
[1 mark].3
Name the green substance in chloroplasts that absorbs light.
[1 mark]AQA GCSE Biology November 2020 Paper 1F
5 questions on this paper's topics
20:001 of 5
Substances move into and out of cells by diffusion, osmosis and active transport.
.1
Which statement describes diffusion?
[1 mark].2
Which two changes would increase the rate of diffusion of oxygen into a cell? Tick two boxes.
[2 marks].3
Root hair cells take in mineral ions from very dilute soil water. Which process do they use?
[1 mark]A student looks at a leaf cell from a moss plant and a bacterial cell under a microscope.
How answer checking works
Fixed rules check calculations, units and supported phrases. A wording match is a guide to the scheme, not an examiner grade. Compare uncertain points with the scheme.
.1
Which structure controls which substances enter and leave the moss cell?
[1 mark].2
Give two ways the genetic material in the bacterial cell is different from the genetic material in the moss cell.
[2 marks].3
The moss cell is 0.1 mm long. The bacterial cell is 2 µm long.
Calculate how many times longer the moss cell is than the bacterial cell.
[2 marks]Respiration happens continuously in living cells.
.1
Which word equation shows aerobic respiration?
[1 mark].2
During hard exercise, muscle cells respire anaerobically. What do they produce?
[1 mark].3
Why do all living cells respire?
[1 mark]A student tests some foods for starch, sugar and protein.
.1
Which solution does the student use to test for starch?
[1 mark].2
The student heats a food with Benedict's solution. The food contains a lot of glucose.
What colour does the mixture turn?
[1 mark].3
Name the solution used to test for protein.
[1 mark].4
Suggest why the student heats the Benedict's test tubes in a water bath rather than directly over a Bunsen burner.
[1 mark]