Unit 2 : Photosynthesis Flashcards
(8 cards)
How do plants differ from animals?
Plants can produce their own food through photosynthesis.
Photosynthesis is an endothermic process. What does this mean?
Takes in heat.
What 2 substances does photosynthesis combine to form sugar?
- water from the soil
- carbon dioxide from the
What gas is given off as a by-product?
oxygen
Where does the energy come from, needed to drive the process?
the sunlight
Where is the sunlight trapped?
in the green pigment chlorophyll
Complete the word equation for photosynthesis.
____ _____+ _____ = _____ + ______
carbon dioxide + water = glucose + oxygen
*light is needed to produce glucose + oxugen
What ways can the glucose produced in photosynthesis be used by the plant?
RESPIRATION - to make energy
STORAGE - convert into starch
other useful substances
- cellulose (cell wall)
- chlorophyll
- protein
