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Questions and Answers
What is the term used to describe an organism's movement towards a favorable stimulus?
What is the term used to describe an organism's movement towards a favorable stimulus?
- Positive taxis (correct)
- Negative phototaxis
- Positive chemotaxis
- Negative gravitropism
In roots, what effect does a high concentration of IAA have on cell elongation?
In roots, what effect does a high concentration of IAA have on cell elongation?
- Causes cells to shrink
- Inhibits cell elongation (correct)
- Stimulates cell elongation
- Has no effect on cell elongation
What is the term for an organism's response to move away from an unfavorable stimulus?
What is the term for an organism's response to move away from an unfavorable stimulus?
- Positive phototaxis
- Negative taxis (correct)
- Positive gravitropism
- Positive gravitaxis
Which response involves an organism changing its speed and direction of movement based on stimuli?
Which response involves an organism changing its speed and direction of movement based on stimuli?
What type of response do bacteria exhibit when moving towards certain chemicals for survival?
What type of response do bacteria exhibit when moving towards certain chemicals for survival?
When woodlice must be in damp areas to prevent excessive water loss, what kind of movement response do they exhibit?
When woodlice must be in damp areas to prevent excessive water loss, what kind of movement response do they exhibit?
What is the name given to the structures that cause a response in organisms?
What is the name given to the structures that cause a response in organisms?
Indoleacetic acid (IAA) is an example of a growth factor that controls which plant response mechanism?
Indoleacetic acid (IAA) is an example of a growth factor that controls which plant response mechanism?
Which plant part produces indoleacetic acid (IAA) that causes cell elongation in shoots?
Which plant part produces indoleacetic acid (IAA) that causes cell elongation in shoots?
What type of tropism occurs when plants grow towards a stimulus?
What type of tropism occurs when plants grow towards a stimulus?
In phototropism, where does indoleacetic acid (IAA) diffuse when there is unilateral light?
In phototropism, where does indoleacetic acid (IAA) diffuse when there is unilateral light?
Why do roots not exhibit phototropism?
Why do roots not exhibit phototropism?
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