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Questions and Answers
What is a key characteristic of a hormone?
What is a key characteristic of a hormone?
- Transported in the plant (correct)
- Only produced in animal cells
- Limited to a single physiological response
- Synthesized in inorganic ions
Why are inorganic ions like K+ and Ca+ not considered hormones?
Why are inorganic ions like K+ and Ca+ not considered hormones?
- They do not cause important responses (correct)
- They are synthesized in plant cells
- They are transported within the plant
- They inhibit plant growth
How do plant hormones differ from animal hormones according to recent studies?
How do plant hormones differ from animal hormones according to recent studies?
- They only cause a single response
- They are synthesized in animal cells
- They do not need to be transported
- They do not fit the model of animal hormones (correct)
Which substance, although synthesized and translocated by plants, is not classified as a hormone?
Which substance, although synthesized and translocated by plants, is not classified as a hormone?
What is a common feature of most plant physiological responses?
What is a common feature of most plant physiological responses?
What term do many plant physiologists prefer to use instead of plant hormones?
What term do many plant physiologists prefer to use instead of plant hormones?
Who is credited with the discovery of auxin as the first plant hormone?
Who is credited with the discovery of auxin as the first plant hormone?
What is the role of auxin in plants?
What is the role of auxin in plants?
Which experiment led to the conclusion that a spreading substance aids plant growth towards light?
Which experiment led to the conclusion that a spreading substance aids plant growth towards light?
Which phenomenon involves directional growth in response to gravity?
Which phenomenon involves directional growth in response to gravity?
How does auxin concentration affect growth in response to gravitropism?
How does auxin concentration affect growth in response to gravitropism?
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