AQA GCSE BIOLOGY QUESTIONS LATEST UPDATE 2025 GRADED A+

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SPECIMEN MATERIAL




GCSE
BIOLOGY H
AQA GCSE BIOLOGY QUESTIONS LATEST UPDATE 2025 GRADED
A+




SPECIMEN MATERIAL

, 3

0 1 Plants transport water and mineral ions from the roots to the leaves.



0 1 . 1 Plants move mineral ions:
• 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




0 1 . 2 Describe how water moves from roots to the leaves.
[2 marks]




Question 1 continues on the next page




SPECIMEN MATERIAL

, 4

Plants lose water through the stomata in the leaves.

The epidermis can be peeled from a leaf.

The stomata can be seen using a light microscope.


Table 1 shows the data a student collected from five areas on one leaf.


Table 1


Number of stomata
Leaf
area
Upper surface Lower surface

1 3 44

2 0 41

3 1 40

4 5 42

5 1 39

Mean 2 X




0 1 . 3 Describe how the student might have collected the data in Table 1.
[3 marks]




SPECIMEN MATERIAL

, 5

0 1 . 4 What is the median number of stomata on the upper surface of the leaf?
[1 mark]




0 1 . 5 Calculate the value of X in Table 1.

Give your answer to 2 significant figures.
[2 marks]




Mean number of stomata on lower surface of leaf =




0 1 . 6 The plant used in this investigation has very few stomata on the upper surface
of the leaf.

Explain why this is an advantage to the plant.
[2 marks]




Turn over for the next question




SPECIMEN MATERIAL