Plant Tropisms Quiz

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What is the role of auxin in plants?

Promotion of leaf growth

Enhancement of root branching

Stimulation of cell elongation (correct)

Inhibition of cell elongation

Which of the following is NOT a common plant tropism stimulus?

Gravity

Light

Wind (correct)

Touch

How do animals typically respond to unfavorable environmental conditions compared to plants?

By changing their location (correct)

By undergoing photosynthesis

By producing more auxin

By increasing root growth

What is the term for a detectable change in an organism's internal or external environment that provokes a reaction?

Stimuli Signup and view all the answers

Which process involves the growth or turning movement of an organism in response to an environmental stimulus?

Tropism Signup and view all the answers

What is the main difference between how animals and plants handle environmental changes?

Animals adapt by moving Signup and view all the answers

What is the definition of thigmotropism?

Directional movement of plants in response to touch Signup and view all the answers

Which plant part exhibits positive thigmotropism?

Tendrils Signup and view all the answers

How do roots exhibit negative thigmotropism?

Growing away from the touch stimulus Signup and view all the answers

Which specialized plastids help plants respond to gravity?

Amyloplasts Signup and view all the answers

What type of tropism involves growth towards the light source?

Phototropism Signup and view all the answers

In what way do tendrils help climbing plants?

Supporting the plant structure Signup and view all the answers

What is the term for directional growth in response to water concentrations?

Hydrotropism Signup and view all the answers

Which type of tropism occurs when an organism grows towards the source of heat?

Positive Thermotropism Signup and view all the answers

What is the movement of a plant in response to a change in temperature called?

Thermotropism Signup and view all the answers

Which tropism involves the plant moving away from moisture?

Negative Hydrotropism Signup and view all the answers

What are statoliths and what role do they play in plant growth?

They are gravity-sensing organelles that aid in plant movement. Signup and view all the answers

Which term refers to observable biological oscillations that occur with a 24-hour periodicity?

Circadian Rhythms Signup and view all the answers

What is the main cause of plant tropisms?

Differential growth Signup and view all the answers

What is the term for growth in the direction of a stimulus?

Positive tropism Signup and view all the answers

Which phenomenon describes a plant bending toward light?

Phototropism Signup and view all the answers

What is the main difference between nastic movements and tropisms?

Directionality of response Signup and view all the answers

What causes cells on the shaded side of the stem to elongate at a greater rate?

Accumulation of auxins Signup and view all the answers

What do tropisms refer to in plants?

Movement in response to stimuli Signup and view all the answers

Why do plants exhibit phototropism?

To get as much light as possible for photosynthesis Signup and view all the answers

Which of the following is an example of a tropism?

A plant growing towards sunlight Signup and view all the answers

What is the role of plant hormones, such as auxins, in phototropism?

Directing growth by accumulating on the shaded side of the stem Signup and view all the answers

How do plants respond during nastic movements?

With non-directional responses Signup and view all the answers

What allows plants to exhibit movement in response to various environmental stimuli?

Mechanisms called tropisms Signup and view all the answers

Plant Tropisms Quiz

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Questions and Answers

What is the role of auxin in plants?

Which of the following is NOT a common plant tropism stimulus?

How do animals typically respond to unfavorable environmental conditions compared to plants?

What is the term for a detectable change in an organism's internal or external environment that provokes a reaction?

Which process involves the growth or turning movement of an organism in response to an environmental stimulus?

What is the main difference between how animals and plants handle environmental changes?

What is the definition of thigmotropism?

Which plant part exhibits positive thigmotropism?

How do roots exhibit negative thigmotropism?

Which specialized plastids help plants respond to gravity?

What type of tropism involves growth towards the light source?

In what way do tendrils help climbing plants?

What is the term for directional growth in response to water concentrations?

Which type of tropism occurs when an organism grows towards the source of heat?

What is the movement of a plant in response to a change in temperature called?

Which tropism involves the plant moving away from moisture?

What are statoliths and what role do they play in plant growth?

Which term refers to observable biological oscillations that occur with a 24-hour periodicity?

What is the main cause of plant tropisms?

What is the term for growth in the direction of a stimulus?

Which phenomenon describes a plant bending toward light?

What is the main difference between nastic movements and tropisms?

What causes cells on the shaded side of the stem to elongate at a greater rate?

What do tropisms refer to in plants?

Why do plants exhibit phototropism?

Which of the following is an example of a tropism?

What is the role of plant hormones, such as auxins, in phototropism?

How do plants respond during nastic movements?

What allows plants to exhibit movement in response to various environmental stimuli?

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