AQA GCSE Biology Paper 1 - Specimen paper with mark scheme
Study online at https://quizlet.com/_caggme
1. 1.1 Plants move mineral Active Transport
ions:
• from a low concentra-
tion in the soil
• to a high concentra-
tion in the root cells.
What process do plants
use to move these min-
erals ions into root
cells?
[1 mark]
Tick one box.
Active transport
Diffusion
Evaporation
Osmosis
2. 1.2 Describe how water by transpiration stream / pull
moves from roots to the in xylem
leaves
3. 1.3 Plants lose water any three in the correct order
through the stomata in from:
the leaves. • mount epidermis on a slide
The epidermis can be • count stomata in one area
peeled from a leaf. • repeat in four more areas
The stomata can be • repeat method on other
seen using a light mi- surface of leaf
croscope. • calculate mean
Table 1 shows the data a
student collected from
five areas on one leaf.
Describe how the stu-
dent might have collect-
ed the data in Table 1.
, AQA GCSE Biology Paper 1 - Specimen paper with mark scheme
Study online at https://quizlet.com/_caggme
4. 1.4 What is the median 1
number of stomata on
the upper surface of the
leaf?
5. 1.5 Calculate the value (44 + 41 + 40 + 42 + 39) / 5
of X in Table 1. = 41.2
Give your answer to 2 41
significant figures.
[2 marks]
6. 1.6 The plant used in less water lost
this investigation has so it does not wilt
very few stomata on the
upper surface of the
leaf.
Explain why this is an
advantage to the plant.
[2 marks]
7. 2.1 All tools should to kill virus
be washed in disinfec- or
tant after using them to prevent virus spreading
on plants infected with
TMV.
Suggest why.
[1 mark]
8. 2.2 Scientists produced take (stem) cells from meristem
a single plant that con- or
tained a TMV-resistant tissue culture
gene.
Suggest how scientists
can use this plant to
produce many plants
with the TMV-resistant
gene. [1 mark]
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