B2 Photosynthesis Flashcards
What is the function of the chlorophyll found in plant cells?
Absorbs light for photosynthesis.
Name the sugar made in photosynthesis.
Glucose
Name the two chemicals needed for photosynthesis
Water and carbon dioxide
Which two tissues in the leaf contains the most chloroplasts?
Palisade mesophyll
Spongy mesophyll
How does carbon dioxide enter the leaf?
By diffusion
Through the stomata
Give four ways in which the rate of photosynthesis can be increased.
Increase light intensity.
Increase temperature.
Increase concentration of carbon dioxide.
Increase amount of chlorophyll
A plants can convert glucose into protein by adding……
Nitrate
The glucose produced by a plant can be used for :
Respiration - to release energy
Make starch - used to store glucose
Make cellulose - needed to strengthen cell walls
Make fats and oils
Make proteins
Name the chemicals made in photosynthesis
Glucose and oxygen
Name the type of energy needed for photosynthesis
Light
A plant is given excess carbon dioxide and light. The plant does not photosynthesise at its maximum rate. What is the limiting factor? (Higher only)
Temperature.
Give a list of the factors that might limit the rate of photosynthesis
Temperature
Light intensity
Concentration of carbon dioxide
Amount of chlorophyll
Name the green pigment found in chloroplasts.
Chlorophyll.
Name the chemicals shown below
CO2
O2
C6 H12 O6
H2O
CO2 Carbon dioxide
O2 Oxygen
C6 H12 O6 Glucose
H2O Water
Is photosynthesis an exothermic or endothermic reaction?
Endothermic
Energy needs to absorbed for the reaction to occur