3.5.4

Types of Tropisms

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Tropisms

Tropisms are controlled by auxins. They are groups of responses that can be split into:

Illustrative background for PhototropismsIllustrative background for Phototropisms ?? "content

Phototropisms

  • These involve growth either towards (positively phototropic) or away from (negatively phototropic) a light source.
Illustrative background for Gravitotropisms (or geotropisms)Illustrative background for Gravitotropisms (or geotropisms) ?? "content

Gravitotropisms (or geotropisms)

  • Growth either towards (positively gravitropic) or away from (negatively geotropic) the direction of gravity.

Jump to other topics

1The Nature & Variety of Living Organisms

2Structure & Functions in Living Organisms

3Organism Functions

3.1Respiration

3.2Gas Exchange

3.3Transport

3.4Excretion

3.5Coordination & Response

4Reproduction & Inheritance

5Ecology

6Biological Resources

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