BIOENERGETICS Flashcards
Where does photosynthesis take place
takes place in the chloroplasts
is photosynthesis exothermic or endothermic
endothermic- takes in energy
what is the word equation for photosynthesis
carbon dioxide + water —light———– = glucose + oxygen
what is the symbol equation for photosynthesis
6CO2 + 6H2O —LIGHT—-= C6H12O6 + 6O2
what are the ways that plants use glucose
for respiration making cellulose making amino acids stored as oil or fats stored as starch
how do plants use glucose for respiration
this transfers energy from glucose which enables the plants to convert the rest of the glucose into various other useful substances
how do plants use glucose to make celluose
glucose is converted into cellulose for making strong plant cell walls
how do plants use glucose for making amino acids
glucose is combined with nitrate ions to make amino acids which are then made into proteins
how do plants use glucose for storage as oils or fats
glucose is turned into lipids for storing in seeds
how do plants use glucose for storage as starch
glucose is turned into starch and stored in roots, stems and leaves ready for use when photosynthesis isn’t happening like in winter
what are the limiting factors of photosynthesis
light
co2 concentration
temperature
amount of chlorophyll
how do you artificially create an ideal environment for plants to grow
in a greenhouse
what do greenhouses do
greenhouses trap the suns heat and makes sure that the temperature doesn’t become a limiting factor
at night how can farmers ensure plants are still photosynthesising
they use artificial light when the sun goes down
how do farmers increase the level of co2 in a greenhouse
they can use a paraffin heater, as paraffin burs co2 is made as a by product
what is respiration
respiration is the process of transferring energy from glucose which goes on in every cell
