Podcast
Questions and Answers
Which external signal is the most important for plants?
Which external signal is the most important for plants?
- Temperature
- Light (correct)
- Wind
- Water
Plants produce ________ that regulate growth and development in response to external stimuli.
Plants produce ________ that regulate growth and development in response to external stimuli.
hormones
True or false: Plants do not produce hormones that regulate growth and development in response to external stimuli.
True or false: Plants do not produce hormones that regulate growth and development in response to external stimuli.
False (B)
True or false: Water is the most important external signal perceived by plants.
True or false: Water is the most important external signal perceived by plants.
Light is the most important external signal perceived by ________.
Light is the most important external signal perceived by ________.
Which of the following is NOT one of the classic plant hormones?
Which of the following is NOT one of the classic plant hormones?
Plant hormones are chemical signals that modify or control ________ processes.
Plant hormones are chemical signals that modify or control ________ processes.
Which hormone promotes stem elongation and delays leaf abscission?
Which hormone promotes stem elongation and delays leaf abscission?
True or false: Plant hormones are physical signals that modify or control physiological processes.
True or false: Plant hormones are physical signals that modify or control physiological processes.
The five classic plant hormones are auxin, cytokinins, gibberellins, abscisic acid, and ________.
The five classic plant hormones are auxin, cytokinins, gibberellins, abscisic acid, and ________.
Which hormone controls cell division and differentiation?
Which hormone controls cell division and differentiation?
True or false: The four classic plant hormones are auxin, cytokinins, gibberellins, and ethylene.
True or false: The four classic plant hormones are auxin, cytokinins, gibberellins, and ethylene.
Which hormone encourages growth by promoting both cell elongation and division?
Which hormone encourages growth by promoting both cell elongation and division?
True or false: Auxin delays stem elongation, apical dominance, vascular differentiation, and promotes leaf abscission.
True or false: Auxin delays stem elongation, apical dominance, vascular differentiation, and promotes leaf abscission.
Auxin promotes stem elongation, apical dominance, vascular differentiation, and delays ________ abscission.
Auxin promotes stem elongation, apical dominance, vascular differentiation, and delays ________ abscission.
True or false: Cytokinins control cell division and differentiation, and inhibit nutrient mobilization to sink tissues.
True or false: Cytokinins control cell division and differentiation, and inhibit nutrient mobilization to sink tissues.
Which hormone prevents precocious germination and mediates the rapid closure of stomata in drought-stressed plants?
Which hormone prevents precocious germination and mediates the rapid closure of stomata in drought-stressed plants?
Cytokinins control cell division and differentiation, and mobilize nutrients to ________ tissues.
Cytokinins control cell division and differentiation, and mobilize nutrients to ________ tissues.
Which hormone is responsible for leaf abscission and fruit ripening?
Which hormone is responsible for leaf abscission and fruit ripening?
Gibberellins encourage growth by promoting both cell elongation and division, and promote seed ________.
Gibberellins encourage growth by promoting both cell elongation and division, and promote seed ________.
True or false: Gibberellins encourage growth by promoting only cell elongation, and inhibit seed germination.
True or false: Gibberellins encourage growth by promoting only cell elongation, and inhibit seed germination.
True or false: Abscisic acid promotes precocious germination, and mediates the rapid opening of stomata in drought-stressed plants.
True or false: Abscisic acid promotes precocious germination, and mediates the rapid opening of stomata in drought-stressed plants.
Which physiological process is NOT controlled by plant hormones?
Which physiological process is NOT controlled by plant hormones?
Abscisic acid prevents precocious germination, and mediates the rapid closure of stomata in ________-stressed plants.
Abscisic acid prevents precocious germination, and mediates the rapid closure of stomata in ________-stressed plants.
True or false: Ethylene is responsible for leaf abscission and fruit ripening.
True or false: Ethylene is responsible for leaf abscission and fruit ripening.
Which hormone is involved in apical dominance, asexual regeneration, and vegetative propagation?
Which hormone is involved in apical dominance, asexual regeneration, and vegetative propagation?
Ethylene is responsible for leaf abscission and fruit ________.
Ethylene is responsible for leaf abscission and fruit ________.
Which hormone mobilizes nutrients to sink tissues?
Which hormone mobilizes nutrients to sink tissues?
Hormones often work in concert and combination, for example in apical dominance, asexual regeneration, and ________ propagation.
Hormones often work in concert and combination, for example in apical dominance, asexual regeneration, and ________ propagation.
True or false: Hormones work independently and do not interact with each other.
True or false: Hormones work independently and do not interact with each other.
Study Notes
- Plants produce hormones that regulate growth and development in response to external stimuli.
- Light is the most important external signal perceived by plants.
- Plant hormones are chemical signals that modify or control physiological processes.
- The five classic plant hormones are auxin, cytokinins, gibberellins, abscisic acid, and ethylene.
- Auxin promotes stem elongation, apical dominance, vascular differentiation, and delays leaf abscission.
- Cytokinins control cell division and differentiation, and mobilize nutrients to sink tissues.
- Gibberellins encourage growth by promoting both cell elongation and division, and promote seed germination.
- Abscisic acid prevents precocious germination, and mediates the rapid closure of stomata in drought-stressed plants.
- Ethylene is responsible for leaf abscission and fruit ripening.
- Hormones often work in concert and combination, for example in apical dominance, asexual regeneration, and vegetative propagation.
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Description
Test your knowledge of plant hormones with this quiz! Learn about the five classic plant hormones and their functions, including auxin, cytokinins, gibberellins, abscisic acid, and ethylene. Discover how these hormones regulate growth and development in response to external stimuli like light and drought, and how they work together to control physiological processes. Challenge yourself with questions on topics like apical dominance, asexual regeneration, and vegetative propagation. Get ready to become a plant hormone expert
