Pupil sheet · Plant responses
Plant responses — return questions
Name ______________________ Date ____________
Use one to two weeks after the lessons. Keep the notes and the lesson closed.
1. describe
Describe phototropism, and state which way shoots respond.
2. state
Oat seedlings are lit from one side. (a) State which part of the shoot detects the direction of the light. (b) State where on the shoot the curve forms.
(a) Part that detects the light
(b) Where the curve forms
3. describe
Describe gravitropism in roots and in shoots.
4. explain
Explain why a clinostat is used as a control in an investigation of gravitropism.
5. state / describe
Supplement: for auxin in a shoot, (a) state where it is made, (b) describe how it reaches the region below, (c) state its effect on the cells there.
(a) Where it is made
(b) How it moves
(c) Its effect
6. explain
Supplement: a cress seedling grows in a glass tube lying flat in a dark drawer. Explain why its shoot curves upwards.