Question

Which is correct regarding photosynthesis?

(a) Carbon dioxide is obtained from the atmosphere

(b) Water is absorbed from the soil through the stem system

(c) Sunlight is trapped by pigments called xanthophyll

(d) Chlorophyll absorbs green light

The question was posed to me in an interview for internship.

This intriguing question originated from Photosynthesis Basics in portion Photosynthesis in Higher Plants of Biology – Class 11

Answer 1

Correct option is (a) Carbon dioxide is obtained from the atmosphere

For explanation I would say: The carbon dioxide is obtained from the atmosphere whereas water is absorbed from the soil through the root system. Sunlight is trapped by pigments present in the leaf called chlorophyll and it absorbs violet, blue, and red lights and reflects green light.