WorksheetsPhotosynthesis Test
Total questions: 20
Worksheet time: 15mins
Thylakoids contain clusters of chlorophyll and proteins known as ___________________.
chloroplasts
stroma
photosynthesis
photosystems
Clusters of chlorophyll absorb sunlight and high-energy generate ________________ pass along the ________________.
electrons, photosystem chain
protons, oxygen receptor
electrons, electron transport chain
sodium ions, oxygen receptor
The light-independent reactions of photosynthesis are also known as _______________.
Calvin Cycle
ATP synthase
photosystem 1
photosystem 2
During the light-independent reactions, energy from ATP and ___________ is used to assemble high-energy sugars.
carbon dioxide
NADPH
sugar
water
ADP becomes ATP by:
gaining a phosphate group
loosing an adenine group
loosing energy during a chemical reaction
transferring chemical energy to another compound
Glucose is actually formed in photosynthesis when two molecules are joined together. These two molecules are:
NADP and ATP
ATP and CO2
CO2 and PGAL
PGAL and PGAL
The end products of the light dependent reactions are:
Oxygen, ATP, NADPH
CO2, PGAL, Hydrogen
H2O, ADP, NADP
PGAL, ADP, ribulose
In photosynthesis, water is split in order to:
Produce the oxygen for independent reactions
provide hydrogen for NADPH
provide energy to change ADP to ATP
provide electrons to break down chlorophyll
The oxygen gas produce in photosynthesis is generated by:
splitting of CO2
reduction of PGAL
splitting of water during light independent reaction
synthesis of ATP
All of the following compounds are required for photosynthesis except:
ATP
NADPH
water
oxygen
CO2
Where does the light independent reaction occur?
cytoplasm of cell
outer membrane of chloroplast
thylakoid membrane
stroma
The light independent reactions require all of the following except:
CO2
RuBP
ATP
NADPH
NADP+
Which is true about chlorophyll?
It absorbs green light
It absorbs red and blue light the best
It is not necessary for photosynthesis
Where are photosystems I and II located?
In the cristae membrane
in the outer membrane of chloroplast
in the inner membrane of chloroplast
in the thylakoid membranes
in the stroma
Which of the following is not produced during the light dependent reactions?
NADPH
oxygen
glucose molecules
ATP
hydrogen ions
As light intensity increases, the rate of photosynthesis would:
increase
decrease
remain the same
Which is needed for the Calvin Cycle?
water
oxygen
glucose
carbon dioxide
NADP+
When chlorophyll molecules absorb energy, electrons become excited. What happens to the excited electrons?
they split water molecules
they enter the Calvin Cycle
they are transferred to an electron acceptor
they are converted to another pigment
Carbon atoms are incorporated into glucose in which stage?
Calvin Cycle
light dependent reaction
electron transport chain
photosystem II
Which of the following would be an autotroph?
cat
mushroom
octopus
tree
amoeba
