Question

chlorophyll a primarily absorbs light at which wavelengths?
a 500 nm and 630 nm
b 425 nm and 660 nm
c 450 nm and 550 nm
d 575 nm and 700 nm

Explanation:

Step1: Analyze the graph

Look at the peaks of the Chlorophyll a curve.

Step2: Identify wavelengths

The peaks of Chlorophyll a are around 425 nm and 660 nm.

Answer:

B. 425 nm and 660 nm