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Questions and Answers
What type of light activates the phytochrome Pr?
What type of light activates the phytochrome Pr?
- Far-red light
- Red light (correct)
- Ultraviolet light
- Blue light
What happens to plant growth when the inactive form of phytochrome (Pr) is produced?
What happens to plant growth when the inactive form of phytochrome (Pr) is produced?
- Plants grow towards the shade
- Plants grow towards the sunlight
- Plants grow slower (correct)
- Plants grow faster
What is the result of the conversion of chromoprotein into the active form (Pfr) by red light from the sun?
What is the result of the conversion of chromoprotein into the active form (Pfr) by red light from the sun?
- Plants grow slower
- Plants grow in a random direction
- Plants grow towards the shade
- Plants grow towards the sunlight (correct)
What is the primary role of phototropism in plant growth?
What is the primary role of phototropism in plant growth?
What type of phytochrome is activated by far-red light?
What type of phytochrome is activated by far-red light?
What is the relationship between phototropism and gravitropism in plant growth?
What is the relationship between phototropism and gravitropism in plant growth?
What is the primary role of phototropins in plant responses?
What is the primary role of phototropins in plant responses?
What is the result of etiolation in plants?
What is the result of etiolation in plants?
What is the function of the apical meristem in phototropism?
What is the function of the apical meristem in phototropism?
What is the type of light detected by phototropins?
What is the type of light detected by phototropins?
Who discovered that light is perceived by the tip of the plant?
Who discovered that light is perceived by the tip of the plant?
What is the term for the movement of plants towards or away from light?
What is the term for the movement of plants towards or away from light?
What is the term for the amount of light and darkness in a daily cycle of 24 hours?
What is the term for the amount of light and darkness in a daily cycle of 24 hours?
What is the point at which the photoperiod switches from being noninductive to inductive?
What is the point at which the photoperiod switches from being noninductive to inductive?
What type of plants can only flower in the inducing photoperiod?
What type of plants can only flower in the inducing photoperiod?
What is the term for the process by which plants measure time?
What is the term for the process by which plants measure time?
What is the importance of an animal's sensory system?
What is the importance of an animal's sensory system?
What is the process of artificially exposing plants to low temperatures to stimulate flowering or enhance seed production?
What is the process of artificially exposing plants to low temperatures to stimulate flowering or enhance seed production?
