PHOTOSYNTHESIS (1) Flashcards
What is light energy converted into?
Chemical energy
What is the word equation for photosynthesis?
Carbon dioxide +water –) glucose+oxygen
Where does the carbon dioxide needed for photosynthesis come from?
From the air, carbon dioxide diffuses into the leaf via the stomata
Where does the water for photosynthesis come from?
water absorbed into the roots by the root hair cells across the root cortex to the xylem which transports the water to the leaf
How is the light energy needed for photosynthesis absorbed?
By the chlorophyll(a green pigment) located in the chloroplast
What is oxygen in the reaction?
a waste product
What is photosythesis?
It is an endothermic (takes in heat) chemical process that USES sunlight to TURN carbon dioxide into glucose and oxygen
Name 1 way the plant uses glucose
glucose can be used to make cellulose(lots of glucose molecules together)
(which is used to make/adds strength to the cell walls
Name 2nd way the plant uses glucose
Glucose (sugar) can be used to make long chains of insoluble starch(long term storage)
Name 3rd way the plant uses glucose
glucose can be combined with +nitrates=to make proteins= for growth
Name 4th way the plant uses glucose
can be converted into lipids (fats or oils) to store in SEEDS (stored as FUTURE energy source)
What is the balanced word equation for photosynthesis?
6CO2 + 6H20–) C6H1206+ 602
