WorksheetsPhotosynthesis Light Reaction
Total questions: 33
Worksheet time: 4hrs 47mins
Name
Class
Date
1.
What is the primary function of the light reactions of photosynthesis?
a)
To produce glucose
b)
To produce NADPH and ATP
c)
To use ATP
d)
To produce RuBP
2.
Which of the following is NOT a product of the light reactions?
a)
ATP
b)
NADPH
c)
Oxygen
d)
Glucose
3.
What does ATP synthase do?
a)
Create ATP in chemiosmosis.
b)
Break down ATP in chemiosmosis.
c)
Break down NADPH.
d)
Create NADPH.
4.
Where is chlorophyll found in the chloroplast?
a)
in the stroma
b)
within photosystems
c)
in the ATP synthase
d)
in the electron carrier molecule
5.
What supplies the electrons that are lost in photosystem I (PSI)?
a)
the electrons from PS II
b)
water
c)
glucose
d)
oxygen
6.
Chlorophyll absorbs _____ and _______ light from the light.
a)
purple and green
b)
red and blue
c)
black and orange
d)
yellow and green
7.
What is the function of NADP+?
a)
It absorbs light
b)
It is an electron carrier
c)
It is a light-reflecting pigment
d)
It acts as long-term energy storage
8.
Which substance from the light-dependent reactions of photosynthesis is a source of energy for the light-independent reactions?
a)
ADP
b)
H2O
c)
NADPH
d)
pyruvic acid
9.
What is the ultimate source of energy for life on Earth?
a)
glucose
b)
sunlight
c)
ATP
d)
H2O
10.
What is the purpose of splitting water in PS2 of the light dependent reaction?
a)
Provides e- for PS2 and H+ for the thylakoid space
b)
To produce Oxygen for animals
c)
There is no purpose
11.
It is important to create a concentration of H+ in the thylakoid space so that the H+ can diffuse through_________ to create ______.
a)
ATP synthase, ATP
b)
NADH, NADPH
c)
proton pump, protons
12.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
13.
According to this absorption spectrum, what color is not used by the chlorophyll pigments?
a)
green
b)
blue
c)
yellow
d)
red
14.
Where are photosystems located?
a)
thylakoid space
b)
thylakoid membrane
c)
central vacuole
d)
stroma
15.
What supplies the electron that is lost in PS II?
a)
oxygen
b)
water
c)
glucose
d)
rubisco
16.
What are the two products of the light reactions that are needed for the calvin cycle?
a)
NAD and NADPH
b)
NADP + and Glucose
c)
NADPH and ATP
d)
Oxygen and NADPH
17.
Photosynthesis is a(n) __________ process.
a)
catabolic
b)
anabolic
18.
What is the main purpose of the light reactions?
a)
To provide the energy and electrons for the calvin cycle
b)
To capture energy and make sugar
c)
To reflect green light
d)
To make sugars
19.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
c)
ribosomes
d)
vacuoles
20.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
21.
What is the main chemical compound that stores and releases energy?
a)
ATP
b)
Cytoplasm
c)
PTP
d)
Oxygen
22.
Stacks of disk shapes that contain chlorophyll within the chloroplast are
a)
stroma
b)
mitochondria
c)
thylakoids
d)
ribosomes
23.
The light-dependent reaction takes place in the
a)
mitochondria
b)
thylakoids
c)
ribosomes
d)
stroma
24.
What gas does the process of photosynthesis release into the atmosphere?
a)
oxygen
b)
carbon dioxide
c)
water
d)
nitrogen
25.
What are the reactants of photosynthesis?
a)
carbon dioxide and oxygen
b)
water and oxygen
c)
carbon dioxide and water
d)
water and glucose
26.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
27.
What do plants need for the photosynthesis process?
a)
a camera and tripod
b)
light, carbon dioxide, and water
c)
roots, flowers, and bees
d)
soil, air, and oxygen
28.
What is the function of NADP+?
a)
It absorbs light
b)
It is an electron carrier
c)
It is a light-reflecting pigment
d)
It acts as long-term energy storage
29.
What drives the formation of ATP by ATP synthase?
a)
buildup of H+ ions
b)
burning oxygen
c)
light absorption
d)
splitting carbon dioxide
30.
Energy is released from ATP when
a)
a phosphate group is added
b)
a phosphate group is removed
c)
adenine binds to ribose
d)
ATP is exposed to sun
31.
Which of the following formulas represents photosynthesis?
a)
6 H2O + 6 O2 = C6H12O6 + 6 CO2
b)
6 H2O + 6 CO2 = C6H12O6 + 6 O2
c)
C6H12O6 + + 6 O2 = 6 H2O + 6 CO2
32.
Water is split during
a)
photosystem 1 of the light dependent reaction
b)
photosystem 2 of the light dependent reaction
c)
calvin cycle
d)
cell respiration
33.
The hydrogen ions from splitting water are used directly to
a)
make NADPH
b)
make glucose
c)
absorb light
d)
make ATP
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