Question

question 19 (1 point) which pigment absorbs a red light the best? carotenoids. chlorophyll a. chlorophyll b. all of these. none of these

Explanation:

By observing the absorption - spectrum graph, at the red - light wavelengths (around 650 - 700 nm), chlorophyll b has the highest light - absorption value among the given pigments.

Answer:

chlorophyll b.