The effect of light on the growth of seedlings: practical

12 questions

1. Calculate the mean of these numbers: 40, 50 and 39.
2. How many millimetres are there in a centimetre?
3. Which of these are plant hormones?
4. What effect does auxin have on shoots?
5. What is a tropism?
6. Which images correctly show phototropism?
7. What is the height of this seedling in mm?
8. What should you **not** do on a biological drawing?
9. After 5 days, which seedlings had increased the most in height?
10. Which of the following conclusions can be made from this graph?
11. What is the plant response to light known as?
12. Look at this picture of a shoot. From which direction is the light coming and in which side of the shoot has auxin gathered?

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