Question

Which of the following is not an example of a photoautotroph?

(a) bacteria

(b) plants

(c) cyanobacteria

(d) human beings

I had been asked this question in an international level competition.

I'm obligated to ask this question of Photosynthesis in portion Photochemistry of Engineering Chemistry I

Answer 1

Right answer is (d) human beings

To explain: Generally, most of the plants, algae and bacteria perform photosynthesis. Such organisms are called photoautotroph. They can make food on their own by using carbon dioxide and light. Human beings cannot create food on their own.