Question

The response of plants to light was first of all discovered by

• A. J.B. Lamarck
• B. Darwin
• C. Thimann
• D. F.W. Went

Answer 1

The correct option is B Darwin

The process of responding of a plant to the light is known as 'phototropism'. It is the growth of an organism which responds to a light stimulus due to a chemical called 'auxin' that reacts when phototropism occurs. This process was discovered first by the Charles Darwin, who reported his experiments in a book published in 1880, The Power of Movement in Plants.

So, the correct answer is option B.