Leaving Certificate BiologyPlant Responses 2 EQ iQuiz

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Phototropism is the growth response to …

Light

Gravity Touch

Chemicals

Name the growth response of a plant to water.

Photosynthesis

Thigmotropism Hydrotropism

Phototropism

Which of the following is a plant growth Inhibitor?

Alcohol Abscisic acid

Salicylic acid Rooting powder

Chemotropism is the growth response of a plant to …

Touch Chemicals

Light Water

Name the tissue that transports growth regulators in plants.

Dermal Meristematic

Ground Vascular

What is the purpose of the acetate grid in the IAA experiment?

To stick the seeds to

To measure root length

To keep IAA in the dish

To measure seed size

What is IAA used for?

Plant food Weed killer

Plant growth regulator

To germinate seeds

Where is a plant growth regulator secreted?

Leaf Meristem

Ground tissue Stem

Which of the following is a growth regulator that promotes growth?

Auxin Phloem

Xylem Abscisic acid

Define tropism.

Response to an impulse

Plants producing food

Response to a stimulus Response to food

Which of the following is not a method used by plants to protect

them from adverse external environments?

Tannins Chlorophyll

Heat shock proteins Guard Cells

Which of the following is not a use of a man made auxin?

Rooting powder Ripening fruit

Weed killer Produce seeds

What is ethylene used for?

Elongating roots Ripening fruit

Producing moreleaves Producing fruit

What is thigmotropism?

Growth response to water

Growth response to things

Growth response to touch

Growth response to soil

What does IAA stand for?

Indolent Acetic Acid

Indole Acetic Acid

Indole Acetic Agar

Indole Amino Acid

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Plant Responses 2 EQ iQuiz