Question

You are describing a new species of plant that may have unusual photosynthetic properties, below are the absorption values you obtained from an organic extract of the plant, which wavelengths of visible light does the plant like best? What color is the plant? Color Wavelength Absorbance Red (620nm) 2.0 Orange (590 nm) .0 Yellow (570 nm) 0.0 Green (495 nm) 0.5 Blue (450nm) 1.0 Violet (380nm) 0.5

A) Plant uses red and blue light, plant is Bluish orange yellow in color

B) Plant uses green and yellow light, plant is bright red

C) Plant uses yellow light and is also yellow

Answer 1

Answer: Option A is correct
Description:
Given information,
Color Wavelength Absorbance
Red (620nm) 2.0
Orange (590 nm) 0.0
Yellow (570 nm) 0.0
Green (495 nm) 0.5
Blue (450 nm) 1.0
Violet (380 nm) 0.5

The given plant is not absorbing yellow and orange wavelengths. So, it must be reflecting those lights. So, it will appear in orange-yellow in color.
The given plant is absorbing well in blue and red wavelengths.