PLANT HORMONES

What are the five main types of plant hormones?

• auxin

• gibberellin

• cytokinin

• abscisic acid

• ethylene

Auxin is mainly produced in _____ ______ ________

Gibberellin named after the fungus

• Folke Skoog

• Gibberella Fujikuroi

• Muhammad Husamuddin

• Giberella Sokomoto

Abscisic asid also known as..

• stress hormone

• stunted hormone

• stem elongation hormone

• dancing hormone

which of the following is the correct step of passive phototropism using auxin ?

i. Water enter, turgor pressure increase, cell expands, new and longer cell wall built

ii. Auxin bind to receptor

iii. Cellulose fibers break, wall loosen, turgor pressure decrease

iv. H+ ions actively pumped into cell wall, pH decreases, cellulase activated

• i - iii - ii - iv

• ii - iii - iv - i

• ii - i - iii - iv

• ii - iv - iii - i

this hormone mainly promotes cell devision in plant

• gibberellin

• cyctokinin

• dopamine

• auxin

ethylene appear in what form?

• solid

• gas

• liquid

• husband material

If the plant is growing laterally , what hormone therapy can be used to let the plant grow taller towards sun ?

• auxin

• ethylene

• abscisic acid

what will happen if a ripe banana was stored in the same box with unripe banana ?

• the unripe banana will run

• the unripe banana will ripe

• the ripe banana release ethylene

• the unripe banana will release auxin