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Plant Nutrient Essentials Quiz

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Questions and Answers

Which of the following is NOT an essential nutrient required for a plant to complete its life cycle?

Iron (Fe)

Chlorine (Cl)

Potassium (K)

Carbon (C) (correct)

What is the symptom of nitrogen deficiency in plants?

Curling of climbing plants

Uniform yellowing on older leaves (correct)

Purplish to reddish-purple leaves

Interveinal yellowing on younger leaves

In which direction do roots grow in response to gravitropism?

Downwards (correct)

Away from water

Upwards

Towards water

What is the tropism that involves the movement of a plant towards or away from water?

Hydrotropism (A) Signup and view all the answers

What is the main function of auxin in plants?

Stimulate apical dominance (B) Signup and view all the answers

What is the effect of reducing gibberellin levels in a plant?

Suppress vertical shoot growth (B) Signup and view all the answers

What is the role of cytokinin in plants?

Stimulate cell division (A) Signup and view all the answers

What is the function of abscisic acid (ABA) in plants?

Close leaf stomata under water stress (C) Signup and view all the answers

Why do gardeners prune to create bushier plants?

Less auxin and this enables side shoots to grow (C) Signup and view all the answers

What is the effect of ethylene on plants?

Stimulate leaf and fruit abscission (A) Signup and view all the answers

What is the primary purpose of using ethylene inhibitors on fresh fruits?

To slow the ripening of the fruit (B) Signup and view all the answers

How can gibberellin be used in plant cultivation?

To increase internode length and grape size (C) Signup and view all the answers

Study Notes

Plant Nutrition

Light is NOT an essential nutrient required for a plant to complete its life cycle.

Nitrogen Deficiency

The symptom of nitrogen deficiency in plants is stunted growth and yellowing of leaves.

Root Growth

Roots grow in a downward direction in response to gravitropism.

Hydrotropism

Hydrotropism is the tropism that involves the movement of a plant towards or away from water.

Auxin Function

The main function of auxin in plants is to promote cell elongation and cell division.

Gibberellin Effect

Reducing gibberellin levels in a plant can lead to stunted growth.

Cytokinin Role

The role of cytokinin in plants is to promote cell division and shoot growth.

Abscisic Acid Function

The function of abscisic acid (ABA) in plants is to regulate seed dormancy and stomatal closure.

Pruning

Gardeners prune to create bushier plants by stimulating the growth of new shoots.

Ethylene Effect

Ethylene promotes fruit ripening and senescence (aging) in plants.

Ethylene Inhibitors

The primary purpose of using ethylene inhibitors on fresh fruits is to prolong their shelf life.

Gibberellin Use

Gibberellin can be used in plant cultivation to increase seed germination and stem growth.

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Description

Test your knowledge of essential nutrients required for plant growth with this quiz. From atmospheric to soil sources, how well do you know the 17 essential nutrients needed for plants to complete their life cycle? Find out with this plant physiology quiz.