What is a common feature of chlorophyll A found in cyanobacteria?

Chlorophyll A in cyanobacteria is known for its role in photosynthesis, particularly due to its spectral properties. One of the key characteristics of chlorophyll A is that it absorbs mainly blue-violet and red light but reflects green light. This reflection of green light is why many plants and cyanobacteria appear green to our eyes. The absorption spectrum is critical for maximizing the capture of light energy during photosynthesis, but the reflection of green light is a defining trait of chlorophyll A specifically.

This property is essential for distinguishing it from other pigments. The other options do not accurately describe the common features of chlorophyll A found in cyanobacteria, as chlorophyll is pigmented and does not absorb infrared light, nor does it participate in chemosynthesis.