Paper 1 H - SAMPLE SET 1 Q7 Answers
7) A gardener is looking at the plants in his greenhouse.
7.1) Some of the plants have a disease.
Give two ways the gardener could identify the pathogen infecting the plants. [2 marks]
1. ________________________________________
2. ________________________________________
7.2) Plants can become unhealthy if they do not have essential mineral ions.
Describe the appearance of plants with:
Nitrate deficiency ________________________________________
Magnesium deficiency _____________________________________
7.3) Plants need other mineral ions.
The gardener makes his own garden compost.
The percentage (%) of minerals in his compost was compared with two fertilisers he could buy.
The data are shown in Table 3.
7.1) Some of the plants have a disease.
Give two ways the gardener could identify the pathogen infecting the plants. [2 marks]
1. ________________________________________
2. ________________________________________
7.2) Plants can become unhealthy if they do not have essential mineral ions.
Describe the appearance of plants with:
- nitrate deficiency
- magnesium deficiency.
Nitrate deficiency ________________________________________
Magnesium deficiency _____________________________________
7.3) Plants need other mineral ions.
- Potassium ions are needed for healthy root growth.
- Phosphate ions are needed for healthy flowers and fruits.
The gardener makes his own garden compost.
The percentage (%) of minerals in his compost was compared with two fertilisers he could buy.
The data are shown in Table 3.
The gardener buys Fertiliser S.
Explain why he chose Fertiliser S. [4 marks]
(Total for Question 7 = 8 marks)
Explain why he chose Fertiliser S. [4 marks]
(Total for Question 7 = 8 marks)
Answers
