Biology form 5 KSSM (chapter 5)

What is the response of certain parts of plant such as roots and shoots that respond or away from a stimulus?

• Nastic response

• Phototropism response

• Tropism response

• Geotropism response

Characteristics of tropism

• The response is slow

• Not a growth response

• Permanent response

• The response is more apparent

Plant shows positive tropism by coiling or wrapping around an object

• Geotropism

• Tropism

• Thigmotropism

• Plant response

Roots show_________when they grow away from poison

• Chemotropism

• Positive chemotropism

• Negative chemotropism

• Tropism

Type of nastic response?

• Photonasty

• Hydrotropism

• Plant response

Characteristics of nastic response

• The response is quicker

• It is growth response

• The response is influenced by plant hormones

Response that are intended for survival

• Tropism response

• Nastic response

Japanese roses petals engage in ________ as a response to light

• Seismonasty

• Photonasty

• Nyctinasty

• Thermonasty

Response that can be seen in carnivorous plant

• Nyctinasty

• Thermonasty

• Thigmonasty

• Seismonasty

Chemical substance that stimulate and coordinate responses in plants, at low concentrations

• Phytohormones

• Tropism response