1.describe a plants response to blue light? 2.Soybean (Glycine max) is a short-d
ID: 10618 • Letter: 1
Question
1.describe a plants response to blue light?
2.Soybean (Glycine max) is a short-day plant with a critical daylength of 10 hours, while spinach (Spinacia oleracea) is a long-day plant with a critical daylength of 13 hours. Fill in each blank to indicate whether the treatments described would cause each plant to flower (answer ‘flower’) or remain in a vegetative phase of growth (answer ‘veg’).
a. 8 hours light and 16 hours dark
b. 16 hours light and 8 hours dark
c. 12 hours light and 12 hours dark
d. 12 hours light, then 6 hours dark, then 30 min. red light, then 5 hours 30 min dark
e. 8 hours light, then 8 hours dark, then 30 min. red light, then 7 hours 30 min. dark
f. 8 hours light, then 8 hours dark, then 30 min. red light, then 30 min. far-red light, then 7 hours dark
Explanation / Answer
1. A plants response to blue light would be that it would absorb it with its chlorophyll. It uses this light in photosynthesis. The blue rays would be high in energy. a. both would remain veg b. both would flower c. soy- flower spinach- veg d. soy-flower spinach- flower e. soy- spinach- f. both veg because they will block out the far red light
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