The option that identifies the plant's response provoked by red and blue light is
Correct answer: A. Red light enhances cell division, blue light promotes cell elongation
- A. Red light enhances cell division, blue light promotes cell elongation
- B. Red light promotes cell elongation, blue light enhances cell division
- C. Red light enhances cell division, blue light retards cell enlargement
- D. Red light promotes cell elongation, blue light retards cell division
Explanation
The correct answer is that red light enhances cell division, and blue light promotes cell elongation. Red light is crucial for processes like flowering and seed germination, which involve cell division. Blue light, on the other hand, is essential for phototropism and can increase the rate of cell elongation, which is important for the growth direction of plants. The other options confuse these roles or represent rare or incorrect generalizations about plant responses to light.
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