Multiple choice

The pigment that absorbs sunlight is _____.

  1. haemoglobin

  2. chlorophyll

  3. carotene

  4. xanthophyll

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chlorophyll is the primary pigment in photosynthesis that absorbs light energy (mainly blue and red wavelengths). Carotene and xanthophyll are accessory pigments, while haemoglobin transports oxygen in blood.