Mammillaria
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Biology 215

Hormonal Regulation in Plants

Christine Case  
 

1. Which hormone promotes internodal growth?
a. abscissic acid
b. brassinosteroids
c. cytokinins
d. ethylene
e. gibberellins

2. Which hormone promotes dormancy?
a. abscissic acid
b. brassinosteroids
c. cytokinins
d. ethylene
e. gibberellins

3. Which hormone promotes fruit ripening?
a. abscissic acid
b. brassinosteroids
c. cytokinins
d. ethylene
e. gibberellins



 

 

Which bunch of grapes had gibberellin added?

Hormone

Type of chemical

Produced in

Effect

Auxins

Organic acid

Buds, root tips

 

Gibberellins

Organic acid

Plastids

 

Cytokinins

Nucleotide

Roots

 

Abscisic acid

Isopenoid

Roots, terminal bud

 

Ethylene

Alkene

All plant parts

 

Jasmonates

Lipid

Chloroplasts

 

Systemin

Peptide

Cyoplasm

 

Strigolactones

Cyclic esters

Roots

 

Salicylic acid

Organic acid

Guard cells

 

Florigens

Unknown