Plant hormones Flashcards

1
Q

From what are produced the hormones

A

SOURCE

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2
Q

How can we also call a plant hormone

A

plant growth regulator

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3
Q

What are the 5 classes of plant hormones

A
Auxin
Cytokinins
Ethylene
Abscisic Acid
Gibberilin
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4
Q

What does the auxin promote

A

formation of lateral and adventitious roots

Apical dominance

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5
Q

What does the Cytokinin promote

A

Lateral shoot

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6
Q

What is the cytokinin

A

Plant growth substance. Make cell division in root and shoot

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7
Q

What is the major role of ethylene

A

Fruit ripening. speed tissues death

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8
Q

What are the function of ehtylene

A

Abscission of leaves
sex expression
Epinasty. downward curve of leaves
Gas emission. Affect other plants

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9
Q

What does the ABA

A

Inhibit development and growth of plant

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10
Q

What permit the ABA

A

Root and shoot signal to stomata closure

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11
Q

From what is made ABA

A

Carotenoid

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12
Q

What are the function of Gibberellins

A

Dwarf mutant
break seed dormancy. stimulate elongation
speed fruit maturity

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