Auxins
Cytokinins
Gibberllins
Ethylene
Abscisic Acid
100

Auxins mainly stimulate this type of plant growth.

What is cell elongation?

100

Cytokinins promote this basic cell process.

What is cell division?

100

Gibberellins help plants grow taller and stronger by changing this structure in plant cells.

What are cell walls?

100

Ethylene is the only plant hormone that exists in this state.

What is a gas?

100

Abscisic acid mainly has this overall effect on plant growth.

What is slowing or preventing growth?

200

Auxins are commonly produced in this growing tissue at the tips of roots and shoots.

What are apical meristems?

200

Cytokinins stimulate the production of proteins needed for these two stages of cell division.

What are mitosis and cytokinesis?


200

Gibberellins are produced in this tissue.

What is the apical meristem?

200

Ethylene is commonly found in ripening fruits and these aging plant parts.

What are dying leaves and flowers?

200

ABA blocks the action of this type of hormone.

What are growth-promoting hormones?

300

This growth pattern, caused by auxins, makes a plant grow mostly upward with few side branches.

What is apical dominance?

300

Cytokinins delay this process in leaves and fruits.

What is aging?

300

Gibberellins help stop this process in seeds so they can begin growing.

What is dormancy?

300

Ethylene controls this important process in fruit.

What is fruit ripening?

300

ABA controls the opening and closing of these structures on leaves.

What are stomata?

400

In phototropism, auxin moves to this side of the stem, causing it to bend.

What is the shaded side?

400

The effect of cytokinins is influenced by the presence of this other hormone.

What are auxins?

400

Gibberellins can reverse this inherited condition in plants.

What is genetic dwarfism?

400

This plant tissue transports ethylene internally.

What is the phloem?

400

ABA is produced in mature green leaves, fruits, and this part of the root.

What are root caps?

500

ABA helps plants respond to environmental stress by controlling this important process related to water loss.

What is stomatal closure?

500

Cytokinins also help cells undergo this process of becoming specialized.

What is differentiation?

500

Farmers use gibberellins to increase the size of this part of crops.

What are fruits?

500

Ethylene causes fruit to become sweeter by breaking down complex carbohydrates into these two sugars.

What are sucrose and fructose?

500

ABA helps plants respond to environmental stress by controlling this important process related to water loss.

What is stomatal closure?

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