photosynthesis Flashcards
(23 cards)
what is the word equation for photosynthesis
carbon dioxide and water > glucose and oxygen
what is the formula for carbon dioxide
CO2
what is the formula for water
H2O
what is the formula for oxygen
O2
what js the formula for glucose
C6H12O6
what is the balanced symbol equation for photosynthesis
6CO+6H2O >C6H12O6+6O2
what is photosynthesis
endothermic reaction in which energy is transferred from the enviroment to the chloroplasts by light
what factors affect the rate of photosynthesis
temp, light intensity, carbon dioxide concentration and amount of chlorophyll
how does temperature affect photosynthesis
as the temperature rises the rate of photosynthesis increases when the temperature becomes too high enzymes are denatured and so rate of photosynthesis decreases until it stops completely
how does temperature affect photosynthesis
as the temperature rises the rate of photosynthesis increases, when the tenperature becomes too high enzymes are denatured and so rate of photosynthesis decreases until it stops completely
how does light intensity affect photosynthesis
the brighter the light the greater the rate of photosynthesis
how does carbon dioxide rate affect photosynthesis
the greater the concentration of carbon dioxide the greater the rate of photosynthesis
how does the amount of chlorophyll affect photosynthesis
the more chlorophyll the greater the rate of photosynthesis
how can you measure the rate of photosynthesis
place a plant underwater and measure the volume of oxygen made or count the number of bubbles jn a given time. the more gas made the faster the rat of photosynthesis
what can glucose be used for in a a plant
respiration make starch make fata or ouls make cellulose or make amino acids
how do plants make protiens
aminoa cides can be made from glucose and plants combine these with nitrate jons absorbed from the soil to make protiens
what is starch used for in the plant
storage
what are oil or fats used for in the plant
storage
what is cellulose used for in the plant
strenghten the cell wall
what are amino acids used for in the plant
protien synthesis
what is the name of the chemical that makes a leaf look green
chlorophyll
how can you test a plant for starch
boil in ethanol to destroy waxy cuticle and remove the colour, then add iodine to the leaf if it turns blue it contains starch
what cell part is needed for photosynthesis to take place
chloroplast
