Photosynthesis Flashcards
All 7 cards in this deck
What is the word equation for photosynthesis?
carbon dioxide + water glucose + oxygen (light energy needed)
Which structure in a plant cell is the site of photosynthesis?
The chloroplast.
What is the role of chlorophyll in photosynthesis?
It is the green pigment in chloroplasts that absorbs light energy.
Why is photosynthesis described as an endothermic reaction?
It takes in (absorbs) energy from the surroundings — light energy — to make the products.
What is a producer in a food chain?
An organism that makes its own food by photosynthesis, e.g. a plant or alga.
True or false? Photosynthetic organisms are the source of the biomass in almost all food chains.
True. Producers make glucose, which becomes the biomass that all other organisms feed on.
True or false? Oxygen is a reactant in photosynthesis.
False. Oxygen is a product; the reactants are carbon dioxide and water.