Grade 12 - Factor influence plant & growth

Grade 12 - Factors influence plant & growth

Multiple Choice

auxin inactive when exposed to sunlight

• true

• false

Multiple Choice

Those statement below are the functions of auxin hormones, except

• cell elongation

• support lateral meristem

• cell differentiation

Multiple Choice

auxin mainly produce in

• lateral meristems

• apical meristems

Multiple Choice

mechanism of phototropism, when the light couldn't distribute properly on the plant, make ..

• auxin move to lighter side and cause bending in plant

• auxin moves to darker side and cause bending in plant

Multiple Choice

the effect of gibberellin in plants

• develop primary meristems

• Phototropism

• Growth and development in embryo

Multiple Choice

when ethylene concentration high, concentration of auxin

• low

• also high

Multiple Choice

main function of ethylene

• prevent fruit ripening

• fruit ripening

Multiple Choice

when the concentration of AbA is high, so the concentration of auxin

• lower than AbA

• Higher than AbA

Multiple Choice

Main function of AbA

• Aging process and falling leaf

• Secondary growth

Multiple Choice

Etiolation

• The plant grow taller but pale in the place which has not enough sunlight

• Fruit ripening