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WorksheetsPhotosynthesis
Total questions: 19
Worksheet time: 25mins
Where does the Calvin cycle or light independent reactions of photosynthesis specifically occur?
thylakoid membrane
Stroma of the chloroplast
Grana
nuclear membrane
•An enzyme that fixes carbon from atmosphere to convert it to complex macromolecule glucose.
RuBP (Ribulose bisphosphate)
RuBisCo (Ribulose Bisphosphate Carboxylase)
PGA (3-Phosphoglycerate)
G3P (Glyceraldeyhyde 3-Phosphate)
NADP+ is produced
ATP is consumed to yield ADP
carbon dioxide is fixed in organic molecules
light is harvested and the energy transferred to a photochemical reaction centre
What role does NADP play in cellular respiration
It is long term energy storage
it is a high-energy hydrogen carrier
it breaks down glucose
it is an enzyme
Which two factors can be limiting in the light-independent reactions of photosynthesis?
Carbon dioxide concentration
light intensity
Water
temperature
Where is the specific location in a chloroplast that a light-dependent stage take place?
Cristae
Thylakoid membrane
Stroma
matrix
Choose the statement that best describes light reaction.
Light energy is converted to CO2, which is released from the cell as a waste product
Light energy is converted to ATP and NADPH. Water is split, liberating oxygen in the process
Light energy from the sun is used to hydrolyse ATP to ADP and break down glucose
What is the process where the energy in light is used to break up a molecule of water?
hydrolysis
photolysis
glycolysis
nicolysis
Structure that contains light harvesting pigments that capture light energy needed for the light dependent reaction
antenna complex
photochemical reaction centre
electron transport chain
stroma
electron transport chain
cytochrome complex
chloroplast
chlorophyll b
granum
gravum
stroma
lumen
second stage of photosynthesis, where carbon dioxide is used to synthesise carbohydrates using energy from ATP and NADPH
light-independent reaction
light-dependent reaction
cyclic photophosphorylation
non-cyclic photophosphorylation
Why would carbon fixation be reduced at a high temperature?
water would not be available due to evaporation
reactions are controlled by enzymes which would denature
waste carbon dioxide would be unable to exit the cell
reaction rate would increase too quickly for it to occur
In this graph, Light stops being a limiting factor at a light intensity of 20 units.
What else could be limiting photosynthesis at this point?
light intensity
soil
carbon dioxide concentration
oxygen concentration
