Question

if sunlight is necessary for photosynthesis then how do plants grown by tissue culture grow inside the laboratory rooms where only artificial light is available as a source of light​

Answer 1

Answer:

But plants have photoreceptors that absorb only specific wavelengths of light. That is why the artificial light we use, should be the perfect balance of wavelength needed by the plant. Here, the use of grow light comes into play. Grow lights emit light of wavelength appropriate for photosynthesis.

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