The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow: The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow:
Explain the term Photosynthesis.
Topic: Photosynthesis
Answer
PHOTOSYNTHESIS is the process by which GREEN plants manufacture their own food — glucose — from CARBON DIOXIDE and WATER, in the presence of SUNLIGHT trapped by CHLOROPHYLL, releasing oxygen as a by-product.
A complete definition needs FIVE elements, and each is a place where a mark can be lost: GREEN plants (chlorophyll is essential) raw materials — carbon dioxide AND water energy source — sunlight product — glucose by-product — oxygen
Candidates most often omit WATER, or say "plants" without "green".
The word itself summarises it: PHOTO (light) + SYNTHESIS (building up). Building food using light.