Photosynthesis TM Review
And EXAM Review
2010
Ms. Martinez
1. What are autotrophs?
1. What are autotrophs?
Organisms
that produce the chemical
energy they need for metabolism through
photosynthsis.
Organisms that make their own food
2. What are heterotrophs?
2. What are heterotrophs?
organisms
that cannot use the sun’s
energy directly.
3. What is ATP?
3. What is ATP?
One
of the principal chemical compounds
that cells use to store and release energy
adenosine triphosphate
4. What is ADP?
4. What is ADP?
a
similar compound that has only two
phosphate groups instead of three.
Adenosine diphosphate
5. How is energy released from
ATP to ADP?
5. How is energy released from
ATP to ADP?
When
a phosphate group is removed.
6. What is the chemical equation
for PS?
6. What is the chemical equation
for PS?
7. The main pigment in plants is
________________________.
7. The main pigment in plants is
________________________.
Chlorophyll
8. Why are plants green?
8. Why are plants green?
Green
light is reflected by leaves, which is
why plants look green.
9. What are the colors of the visible
light spectrum?
9. What are the colors of the visible
light spectrum?
10.Draw a graph which shows the
relative frequencies of light which
are absorbed by the photosystems.
10.Draw a graph which shows the
relative frequencies of light which
are absorbed by the photosystems.
11. What part of the spectrum do
plants absorb colors well?
11. What part of the spectrum do
plants absorb colors well?
Chlorophyll
absorbs light in the blue-violet
and red regions very well.
12. Draw a chloroplast and label it
(include chloroplast membrane, thylakoids
membrane thylakoids, grana, stroma)
12. Draw a chloroplast and label it
(include chloroplast membrane, thylakoids
membrane thylakoids, grana, stroma)
Chloroplast
Stroma
Membrane
Thylakoid
Membrane
Granum
13. Where, in the chloroplast, does
the light phase happen?
13. Where, in the chloroplast, does
the light phase happen?
Thylakoid
Membrane
14. What are all the names for the
light phase?
14. What are all the names for the
light phase?
Light
Dependent Phase
Light Reaction
Light Dependent Reaction
15. What are all the
requirements/inputs for the light
phase?
15. What are all the
requirements/inputs for the light
phase?
Light
Energy
Water
ADP
NADP+
16. What are the products for the
light phase?
16. What are the products for the
light phase?
Oxygen
ATP
NADPH
17. What are photosystems?
17. What are photosystems?
Proteins
in the thylakoid membrane
organize chlorophyll and other pigments
into clusters known as photosystems.
18. What happens in photosystem II?
18. What happens in photosystem II?
Photosynthesis begins when pigments in photosystem II
absorb light.
The light energy is absorbed by electrons, increasing
their energy level.
Each water molecule into electrons, H+ ions, and
oxygen atom.
19. What 3 products are produced
when water is split?
19. What 3 products are produced
when water is split?
electrons, H+ ions, and oxygen
20. Explain what happens during
the ETC or describe how light
energizes a chlorophyll molecule.
20. Explain what happens during
the ETC or describe how light
energizes a chlorophyll molecule.
21. Why is ATP Synthase
important?
ADP
ATP
21. Why is ATP Synthase
important?
Creates
ATP
ADP
ATP
22. Where, in the chloroplast, are
ATP and NADPH made?
22. Where, in the chloroplast, are
ATP and NADPH made?
STROMA
23. How is NADPH made?
23. How is NADPH made?
When
NADP+ picks up high-energy
electrons, along with H+ ions, plus an H+
ion, and becomes NADPH.
24. How is ATP made?
24. How is ATP made?
synthase allows H+ ions to pass
through it.
As H+ ions pass through ATP synthase,
the protein rotates
As it rotates, ATP synthase binds ADP and
a phosphate group together to produce
ATP.
ATP
25. Sketch a diagram to including the paired photosystems I and II and
their position on the thylakoids and their relation to the electron
transporting molecules.
25. Sketch a diagram to including the paired photosystems I and II and
their position on the thylakoids and their relation to the electron
transporting molecules.
26. Where, in the chloroplast, does
the Calvin Cycle happen?
26. Where, in the chloroplast, does
the Calvin Cycle happen?
Stroma
Stroma
27. WHEN does the Calvin Cycle
happen?
27. WHEN does the Calvin Cycle
happen?
Both
day and night—all the time
28. What are the 3
requirements/inputs for the Calvin
Cycle?
28. What are the 3
requirements/inputs for the Calvin
Cycle?
Carbon
ATP
NADPH
dioxide
29. What are the outputs/products
of the Calvin Cycle?
29. What are the outputs/products
of the Calvin Cycle?
ADP
NADP+
C6H12O6
30.What is the actual carbohydrate
produced by the Calvin Cycle?
30.What is the actual carbohydrate
produced by the Calvin Cycle?
C6H12O6--Glucose
31. Besides sugar, why is the end
product of the Calvin cycle
important for plants?
31. Besides sugar, why is the end
product of the Calvin cycle
important for plants?
The
plant uses the sugars to meet its
energy needs and to build more complex
macromolecules such as cellulose that it
needs for growth and development.
Exam Review
Q: The major light-absorbing
pigment in plant photosynthesis is?
Q: The major light-absorbing
pigment in plant photosynthesis is
Chlorophyll
Q: Autotrophs produce the
chemical energy they need
for metabolism through?
Autotrophs produce the chemical
energy they need for metabolism
through
photosynthesis
Q: The waste product that
is released during
photosynthesis into the
atmosphere is?
Q: The waste product that
is released during
photosynthesis into the
atmosphere is
Oxygen
Q: Green plants appear
green to human eyes
because?
Q: Green plants appear
green to human eyes
because?
mainly red and blue wavelengths
are absorbed, while green is
reflected
Q: What waste product of the
light dependent reaction of
photosynthesis is released and
does not participate further in
photosynthesis?
Q: What waste product of the
light dependent reaction of
photosynthesis is released and
does not participate further in
photosynthesis?
O2
Q: In the diagram above, which
letter shows the part of the
chloroplast where the Calvin cycle
takes place?
Q: In the diagram above, which
letter shows the part of the
chloroplast where the Calvin cycle
takes place?
A--Stroma
Q: Which equation will best
show the reactants and
products of the light
dependent reaction?
Q: Which equation will best
show the reactants and
products of the light
dependent reaction?
H2O + light energy → H + O2 + NADPH +
ATP
+
Q: Which equation will best show
the reactants and the products of
the light independent reaction
(dark reaction)?
Q: Which equation will best show
the reactants and the products of
the light independent reaction
(dark reaction)?
CO2 + H+ + NADPH + ATP → C6H12O6
Q: Which equation best
shows the overall reaction
of photosynthesis?
Which equation best shows
the overall reaction of
photosynthesis?
CO2 + H2O + light energy → C6H12O6 + O2
Q: In this diagram of a
chloroplast, which letter is
pointing to the stroma?
Q: In this diagram of a
chloroplast, which letter is
pointing to the stroma?
A
Q: In addition to ATP,
which of the following is
used as a source of energy
in the photosynthesis
reaction?
Q: In addition to ATP,
which of the following is
used as a source of energy
in the photosynthesis
reaction?
NADPH
Q: Where does the light
reaction take place?
Q: Where does the light
reaction take place?
In the thylakoid
membrane
Q: Photosynthesis converts
light energy into_____
energy.
Q: Photosynthesis converts
light energy into_____
energy.
It converts light energy into
chemical energy.
Q: Organisms that cannot
make their own food and
must obtain energy from
the foods they eat are
called?
Q: Organisms that cannot make
their own food and must obtain
energy from the foods they eat
are called
heterotrophs
Q: A student is collecting
the gas produced (given
off) from a plant in bright
sunlight at a temperature of
27o C. The gas being
collected is probably?
Q: A student is collecting the gas
produced (given off) from a plant in
bright sunlight at a temperature of
27 oC. The gas being collected is
probably
oxygen
Q: A granum is a ?
Q: A granum is a
stack of thylakoids
Q: Where in the chloroplast
is chlorophyll found?
Q: Where in the chloroplast
is chlorophyll found?
in the thylakoid membrane
Q: Light energy is
converted to chemical
energy through the process
of?
Q: Light energy is
converted to chemical
energy through the process
of
photosynthesis