BIO 152 EXAM 4 WITH CORRECT
ANSWERS 2025
The stage of the plant that produces spores is called the
a. Charophyte
b. Gametophyte
c. Sporophyte
d. Spermatophyte
e. Epiphyte correct answers >> c. Sporophyte
A. btw Cuticle and upper epidermis
B. Xylem
C. Spongey mesophyll
D. Stoma
Where on this diagram is water potential lowest (most negative)?
correct answers >> D. Stoma
Which of the above molecules (A-E) becomes fixed in
photosynthesis? correct answers >> B. CO2
Which of the above molecules (A-E) represents NADP+ and ADP?
correct answers >> C. In btw. the light reactions and calvin
cycle
In the above diagram, the Calvin Cycle is
,a. X
b. Y
c. Z
d. Both X and Y
e. Both Y and Z correct answers >> b. Y
Which color(s) of light does chlorophyll reflect?
a. blue
b. red
c. green
d. red and blue correct answers >> c. green
The purpose of the light reactions of photosynthesis is to _____.
a. Produce ATP from the electron transport chain
b. Make NADPH
c. Fix carbon dioxide
d. Make water from H+ and O2
e. Both A and B correct answers >> e. Both A and B
Oxygen gas produced during photosynthesis originates as:
a) oxygen atoms are released by the metabolism of
carbohydrates.
b) oxygen atoms contained in carbon dioxide are released when
the carbon is fixed.
c) a by-product of nitrogen-fixing bacteria.
d) a molecule of chlorophyll oxidized by a photon.
, e) oxygen atoms contained in water molecules. correct
answers >> e) oxygen atoms contained in water molecules.
If a plant had a mutation in the gene coding for its RuBisCo
enzyme, it would affect its ability to
a. Make ATP
b. Fix carbon
c. Produce oxygen
d. Absorb sunlight correct answers >> b. Fix carbon
Which of the following statements best represents the
relationship between respiration and photosynthesis?
a) Respiration occurs only in animals and photosynthesis occurs
only in plants.
b) Photosynthesis occurs only in the day and respiration occurs
only at night.
c) Photosynthesis stores energy in complex organic molecules,
while respiration releases it.
d) Respiration stores energy in complex organic molecules, while
photosynthesis releases it.
e) Photosynthesis reverses the biochemical pathways of
respiration in the same organelle. correct answers >> c)
Photosynthesis stores energy in complex organic molecules, while
respiration releases it.
In _______, carbon dioxide is fixed and stored at night as malic
acid, then released for the Calvin Cycle during the day.
a. C3 photosynthesis
ANSWERS 2025
The stage of the plant that produces spores is called the
a. Charophyte
b. Gametophyte
c. Sporophyte
d. Spermatophyte
e. Epiphyte correct answers >> c. Sporophyte
A. btw Cuticle and upper epidermis
B. Xylem
C. Spongey mesophyll
D. Stoma
Where on this diagram is water potential lowest (most negative)?
correct answers >> D. Stoma
Which of the above molecules (A-E) becomes fixed in
photosynthesis? correct answers >> B. CO2
Which of the above molecules (A-E) represents NADP+ and ADP?
correct answers >> C. In btw. the light reactions and calvin
cycle
In the above diagram, the Calvin Cycle is
,a. X
b. Y
c. Z
d. Both X and Y
e. Both Y and Z correct answers >> b. Y
Which color(s) of light does chlorophyll reflect?
a. blue
b. red
c. green
d. red and blue correct answers >> c. green
The purpose of the light reactions of photosynthesis is to _____.
a. Produce ATP from the electron transport chain
b. Make NADPH
c. Fix carbon dioxide
d. Make water from H+ and O2
e. Both A and B correct answers >> e. Both A and B
Oxygen gas produced during photosynthesis originates as:
a) oxygen atoms are released by the metabolism of
carbohydrates.
b) oxygen atoms contained in carbon dioxide are released when
the carbon is fixed.
c) a by-product of nitrogen-fixing bacteria.
d) a molecule of chlorophyll oxidized by a photon.
, e) oxygen atoms contained in water molecules. correct
answers >> e) oxygen atoms contained in water molecules.
If a plant had a mutation in the gene coding for its RuBisCo
enzyme, it would affect its ability to
a. Make ATP
b. Fix carbon
c. Produce oxygen
d. Absorb sunlight correct answers >> b. Fix carbon
Which of the following statements best represents the
relationship between respiration and photosynthesis?
a) Respiration occurs only in animals and photosynthesis occurs
only in plants.
b) Photosynthesis occurs only in the day and respiration occurs
only at night.
c) Photosynthesis stores energy in complex organic molecules,
while respiration releases it.
d) Respiration stores energy in complex organic molecules, while
photosynthesis releases it.
e) Photosynthesis reverses the biochemical pathways of
respiration in the same organelle. correct answers >> c)
Photosynthesis stores energy in complex organic molecules, while
respiration releases it.
In _______, carbon dioxide is fixed and stored at night as malic
acid, then released for the Calvin Cycle during the day.
a. C3 photosynthesis
