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WorksheetsPhotosynthesis (Calvin Cycle)
Total questions: 25
Worksheet time: 14mins
The Calvin Cycle takes place in the:
Stroma
Thylakoid
Grana
Stomata
Main products of the Calvin Cycle
Oxygen, NADP+, ADP
Glucose, CO2, ADP
ADP, NADP+, Glucose
ATP, NADPH, Oxygen
Tiny pores on the underside of leaves
Stroma
Stomata
Thylakoids
Chloroplasts
Plants can close their stomata when the temperature is hot
To prevent water loss
To prevent loss of oxygen
To prevent loss of carbon dioxide
To bring in more carbon dioxide
Which of the following is a way to increase the rate of photosynthesis?
Increase oxygen levels
Decrease CO2 levels
Increase light intensity
Decrease water level
Which of the following is true of the Light Reactions?
carbon dioxide and energy (ATP and NADPH) are used to make organic compounds
energy is absorbed from sunlight and converted to chemical energy stored in ATP and NADPH
Occurs in the stroma
Occurs in the cytoplasm
Rate of photosynthesis ________ as light intensity _________
increases, increases
decreases, increases
increases, decreases
Which of the following is true of the Calvin Cycle?
carbon dioxide and energy (ATP and NADPH) are used to make organic compounds
energy is absorbed from sunlight and converted to chemical energy stored in ATP and NADPH
Occurs in the thylakoid
Occurs in the cytoplasm
Increasing carbon dioxide can increase photosynthesis, but only to a maximum rate because
There are not enough RuBP molecules
Oxygen cannot leave fast enough
Large amounts of CO2 cannot fit in the chloroplast
Calvin cycle can only go as fast as the light reactions
In order to efficiently create 1 glucose molecule, the Calvin Cycle must occur how many times?
3
6
1
12
The CO2 used in the Calvin Cycle originates from ___________.
The light phase
The breakdown of the remaining G3P's
Diffusion through the stoma
Lumen of the Thylakoid
What is the main product of the Calvin Cycle?
Stroma
Thylakoids
Glucose
Water
What happens to NADPH and ATP after they are used in the Calvin Cycle?
they recycle back to the light reactions
they are used to make G3P
Which of the following is NOT a reactant of the Calvin Cycle?
NADPH
ATP
Oxygen
Carbon dioxide
The two main stages of photosynthesis are the
light reactions and respiration
dark reactions and the Calvin cycle
light reactions and the Calvin cycle
dark reactions and fermentation
What molecule absorbs sunlight for photosynthesis?
chloroplast
thylakoid
grana
chlorophyll
What are the products of photosynthesis?
water and carbon dioxide
oxygen and glucose
oxygen and carbon dioxide
oxygen and water
Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?
The light-dependent stage
The light-independent stage (The Calvin Cycle)
The electron transport chain
ATP formation
After photosynthesis, plants store their energy as _________ .
chlorophyll
pigment
glucose (sugar)
Oxygen
Why are plants considered autotrophs
They make their own food
They provide food for others
What two forms of energy are produced from the light-dependent reaction?
Energy and water
ATP and ADP
ATP and NADPH
NADP and NADPH
