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GCSE ADDITIONAL
BIOLOGY (B2)
REVISION BOOKLET
Name ________________________
These are summary questions for all topics in the GCSE Biology B2
exam. When you have completed the booklet collect a mark
scheme and mark your work. Check off each section and enter
your score.
If you find a section(s) produce low…

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B2.1 Cells
Summary sheet
Name: Date:

Summary questions
1 Look at this table showing how long different cells live for:

Type of cell Life in days

Liver cell 250

Muscle cell 240
Red blood cell 100

Skin cell 18

a) What does this data tell you about how these cells…

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B2 1
Summary sheet
Continued ...

2 Read the following article:
In Japan, each child is presented with its own umbilical cord in a decorated box to remind it of the bond
with its mother. At the end of the 20th century there was a nuclear accident in Japan. The…

Page 4

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B2.1 Cells
Summary sheet




Answers to summary questions
Answers
1 a) These cells must be produced on a regular basis to replace those that die
otherwise the organs listed would quickly break down. 1 mark

b) Many nerve cells live for at least 70 years otherwise the human body could…

Page 5

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B2.2 How plants produce food
Summary sheet
Name: Date:

Summary questions
1 a) Use straight lines to link each word related to photosynthesis to its description:

A contain chlorophyll 1 big surface area for light to fall on

B broad 2 allow carbon dioxide to enter leaf cells and oxygen…

Page 6

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B2 2
Summary sheet
Continued ...

At a plant clinic run by a local garden centre, a number of people turn up with plants that are not
growing as well as they should. For each plant, explain what is wrong with it and suggest what needs
to be done to…

Page 7

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B2.2 How plants produce food.
Summary sheet




Answers to summary questions
1 a) A­3; B­1; C­4; D­2. 4 marks
b) Variegated. 1 mark
c) i) To enable the colour of iodine reacting with any starch to be clearly
seen. 1 mark
ii) By boiling in ethanol. 1 mark
2 a)…

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B2.3 Energy Flows
Summary sheet
Name: Class:

Summary questions
1 a) What do we mean by the term `biomass'?

..................................................................................................................................................
b) What is a pyramid of biomass?

..................................................................................................................................................

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c) Draw a pyramid of biomass for this food chain:

rosebush aphids ladybirds birds




d) Using this example, explain why a…

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B2 3
Summary sheet
Continued ...

2 Over the last 50 years, levels of carbon dioxide in the atmosphere have been rising.
a) One possible cause of this effect is the increase in the amount of fossil fuels used by people.
Why does burning fossil fuels increase the levels of…

Page 10

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B2.3 Energy Flows
Summary sheet




Answers to summary questions
Answers
1 a) The mass of living material in an animal or a plant. 1

b) A scale drawing representing the biomass of all the organisms at each
stage of a food chain. 1

c) The block representing the rose bush…

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