Paper 1 H - SAMPLE SET 1 Q1
1) Plants transport water and mineral ions from the roots to the leaves.
1.1) Plants move mineral ions:
What process do plants use to move these minerals ions into root cells? [1 mark]
Tick one box.
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.
1.2) Describe how water moves from roots to the leaves. [2 marks]
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.
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.
1.3) Describe how the student might have collected the data in Table 1. [3 marks]
1.4) What is the median number of stomata on the upper surface of the leaf? [1 mark]
1.5) Calculate the value of X in Table 1.
Give your answer to 2 significant figures. [2 marks]
1.4) What is the median number of stomata on the upper surface of the leaf? [1 mark]
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 = _______________
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]
(Total for Question 1 = 11 marks)
Explain why this is an advantage to the plant. [2 marks]
(Total for Question 1 = 11 marks)