1. Required Practical 8: Define: Phototropism: Geotropism:
Bullet point how you would investigate the effect of light on the growth of seedlings using the following apparatus: 6 4
The role of auxin:
Draw labelled biological drawings of what you would expect to see from your experiment: 5
Required Practical 8:
The effect of light or gravity on newly germinated seedlings 7
Controlling variables:
These bean shoots were grown in the dark. Explain the results:
Variable
How you could control it
Number of seeds
Type of seed
Temperature
Water
Light Intensity 6 8