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AQA GCSE Biology Paper 1 - Specimen paper with mark scheme With Questions And 100% SURE ANSWERS
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JACKLINEAQA GCSE Biology Paper 1 - Specimen paper with mark
scheme With Questions And 100% SURE ANSWERS
Terms in this set (43)
1.1 Plants move mineral ions: Active Transport
• from a low concentration in the soil
• to a high concentration in the root cells.
What process do plants use to move these
minerals ions into root cells?
[1 mark]
Tick one box.
Active transport
Diffusion
Evaporation
Osmosis
1.2 Describe how water moves from roots to the by transpiration stream / pull
leaves in xylem
AQA GCSE Biology Paper 1 - Specimen paper with mark scheme
1/12
, 9/30/24, 3:10 AM
1.3 Plants lose water through the stomata in the any three in the correct order
leaves. from:
The epidermis can be peeled from a leaf. • mount epidermis on a slide
The stomata can be seen using a light microscope. • count stomata in one area
• repeat in four more areas
Table 1 shows the data a student collected from • repeat method on other
five areas on one leaf. surface of leaf
• calculate mean
Describe how the student might have collected
the data in Table 1.
1.4 What is the median number of stomata on the 1
upper surface of the leaf?
1.5 Calculate the value of X in Table 1. (44 + 41 + 40 + 42 + 39) / 5
Give your answer to 2 significant figures. = 41.2
[2 marks] 41
1.6 The plant used in this investigation has very few less water lost
stomata on the upper surface of the leaf. so it does not wilt
Explain why this is an advantage to the plant.
[2 marks]
2.1 All tools should be washed in disinfectant after to kill virus
using them on plants infected with TMV. or
Suggest why. to prevent virus spreading
[1 mark]
We have an expert-written solution to this problem!
2.2 Scientists produced a single plant that take (stem) cells from meristem
contained a TMV-resistant gene. or
tissue culture
Suggest how scientists can use this plant to
produce many plants with the TMV-resistant gene.
[1 mark]
We have an expert-written solution to this problem!
AQA GCSE Biology Paper 1 - Specimen paper with mark scheme
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