BIO 152 PRACTICE EXAM WITH
CORRECT ANSWERS 2025
Under what circumstances would a photosynthetic cell act as a
sink for sucrose?
a. When it is still very young and growing
b. When it is in bright sunlight
c. When it is humid outside
d. When the plant is putting nutrients into storage in the roots
e. When the plant is putting nutrients into seeds for the next
generation of
plants correct answers >> a
42. If you were to look under the microscope at this mature plant
cell, you would not find a nucleus within it, or any other cellular
organelle. What cell type is it?
a. Companion cell
b. Root hair cell
c. Photosynthetic cell
d. Pericyte
e. Tracheid correct answers >> e
43. This nitrogenous waste product is produced and excreted by
the desert lizard to conserve as much water as possible. It is:
a. Ammonia
,b. Urea
c. Ureter
d. Uric acid
e. Nitric acid correct answers >> d
44. Juxtamedullary nephrons are associated with:
a. More dilute urine
b. More concentrated urine
c. Urine with lots of ammonia
d. Urine with lots of urea in it
e. Urine with glucose in it correct answers >> b
45. All of the following are true of xylem, EXCEPT:
a. Tracheids and vessel elements are the two types of conducting
cells of xylem
b. Water and minerals are transported through xylem
c. Companion cells provide nutrients to tracheids
d. Xylem is dead at maturity correct answers >> c
46. When fluids move amongst the cells of a tissue in a plant, if
they move entirely through the spaces outside of cells, then this
type of movement is referred to as:
a. Transplactic
b. Apoplastic
c. Symplastic
d. Antiplastic
, e. Hypoplastic correct answers >> b
During the first phase of the cardiac cycle, the atria are in
__________, and the ventricles are passively filled to about ________
percent of the blood that will be in the heart during this cycle.
Overall, the pressure of the blood in the heart during this phase is
very low.
a. Systole; 20%
b. Diastole; 20%
c. Systole; 80%
d. Diastole; 80% correct answers >> d
During the last phase of the cardiac cycle, the ventricles are
________ and the AV valves are ____________. This results in blood
being ejected into the downstream arteries.
a. Contracting; open
b. Relaxed; open
c. Contracting; closed
d. Relaxed; closed correct answers >> c
The image of the circulatory system shown to the left belongs to
which animal lineage?
a. bryophytes
b. mollusks
c. birds
d. mammals
e. amphibians correct answers >> e
CORRECT ANSWERS 2025
Under what circumstances would a photosynthetic cell act as a
sink for sucrose?
a. When it is still very young and growing
b. When it is in bright sunlight
c. When it is humid outside
d. When the plant is putting nutrients into storage in the roots
e. When the plant is putting nutrients into seeds for the next
generation of
plants correct answers >> a
42. If you were to look under the microscope at this mature plant
cell, you would not find a nucleus within it, or any other cellular
organelle. What cell type is it?
a. Companion cell
b. Root hair cell
c. Photosynthetic cell
d. Pericyte
e. Tracheid correct answers >> e
43. This nitrogenous waste product is produced and excreted by
the desert lizard to conserve as much water as possible. It is:
a. Ammonia
,b. Urea
c. Ureter
d. Uric acid
e. Nitric acid correct answers >> d
44. Juxtamedullary nephrons are associated with:
a. More dilute urine
b. More concentrated urine
c. Urine with lots of ammonia
d. Urine with lots of urea in it
e. Urine with glucose in it correct answers >> b
45. All of the following are true of xylem, EXCEPT:
a. Tracheids and vessel elements are the two types of conducting
cells of xylem
b. Water and minerals are transported through xylem
c. Companion cells provide nutrients to tracheids
d. Xylem is dead at maturity correct answers >> c
46. When fluids move amongst the cells of a tissue in a plant, if
they move entirely through the spaces outside of cells, then this
type of movement is referred to as:
a. Transplactic
b. Apoplastic
c. Symplastic
d. Antiplastic
, e. Hypoplastic correct answers >> b
During the first phase of the cardiac cycle, the atria are in
__________, and the ventricles are passively filled to about ________
percent of the blood that will be in the heart during this cycle.
Overall, the pressure of the blood in the heart during this phase is
very low.
a. Systole; 20%
b. Diastole; 20%
c. Systole; 80%
d. Diastole; 80% correct answers >> d
During the last phase of the cardiac cycle, the ventricles are
________ and the AV valves are ____________. This results in blood
being ejected into the downstream arteries.
a. Contracting; open
b. Relaxed; open
c. Contracting; closed
d. Relaxed; closed correct answers >> c
The image of the circulatory system shown to the left belongs to
which animal lineage?
a. bryophytes
b. mollusks
c. birds
d. mammals
e. amphibians correct answers >> e
