Describe how the cells in xylem tissue are adapted for their functions.

The student placed a leafy shoot in the apparatus and stood it in a place in the laboratory, where the air was still. He recorded the position of the meniscus every two minutes for ten minutes. He then placed the fan close to the apparatus and switched it on. He continued to record the position of the meniscus every two minutes for the next ten minutes.

These are the results he wrote down. 

Start, 0cm 

2 min, 2.8   

4 min, 6.1 

6 mins, 10.0

8 mins, 12.4

1O mins, 16.2

12 mins, 21.8

14 mins, 27.4

16 mins, 31.1

18 mins, 29.5

20 mins, 44.4

Draw a suitable results table in the space below, and complete it to show the student’s results.

The student placed a leafy shoot in the apparatus and stood it in a place in the laboratory, where the air was still. He recorded the position of the meniscus every two minutes for ten minutes. He then placed the fan close to the apparatus and switched it on. He continued to record the position of the meniscus every two minutes for the next ten minutes.

Plot these results on the grid 

The student placed a leafy shoot in the apparatus and stood it in a place in the laboratory, where the air was still. He recorded the position of the meniscus every two minutes for ten minutes. He then placed the fan close to the apparatus and switched it on. He continued to record the position of the meniscus every two minutes for the next ten minutes. 

Plot these results on the graph and use your graph to calculate the mean rate of movement, in cm per minute, of the meniscus in still air; give your answer to three significant figures.

The student placed a leafy shoot in the apparatus and stood it in a place in the laboratory, where the air was still. He recorded the position of the meniscus every two minutes for ten minutes. He then placed the fan close to the apparatus and switched it on. He continued to record the position of the meniscus every two minutes for the next ten minutes. 

Plot these results on the graph and use your graph to calculate the mean rate of movement, in cm per minute, of the meniscus in moving air; give your answer to three significant figures. 

Do the results support the student’s hypothesis? Explain your answer. 

The student placed a leafy shoot in the apparatus and stood it in a place in the laboratory, where the air was still. He recorded the position of the meniscus every two minutes for ten minutes. He then placed the fan close to the apparatus and switched it on. He continued to record the position of the meniscus every two minutes for the next ten minutes. 

Do the results support the student’s hypothesis? Explain your answer.

The student placed a leafy shoot in the apparatus and stood it in a place in the laboratory, where the air was still. He recorded the position of the meniscus every two minutes for ten minutes. He then placed the fan close to the apparatus and switched it on. He continued to record the position of the meniscus every two minutes for the next ten minutes.
These are the results he wrote down.

Evaluate the student’s method. For example, did the student control all the important variables? Did his method really measure what he thought he was measuring?