Tropisms in plants Quiz
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5 questions, one answer each
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1. What is the response of shoots to light called?
- A. Hydrotropism
- B. Phototropism
- C. Gravitropism
- D. Thermotropism
2. Roots grow towards a leaking water pipe. This is
- A. positive phototropism
- B. negative gravitropism
- C. positive hydrotropism
- D. negative hydrotropism
3. When light shines from the left onto a shoot, auxin mainly collects on
- A. the right side
- B. the left side
- C. both sides equally
- D. the roots only
4. Which is the dependent variable in an investigation of shoot bending towards light?
- A. The type of seedling
- B. The temperature
- C. The angle the shoot bends
- D. The direction of the light
5. A seedling is placed on its side. Its shoot bends upwards because
- A. auxin makes cells on the lower side elongate more
- B. auxin makes cells on the upper side elongate more
- C. light moves auxin to the upper side
- D. water moves to the upper side