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BIo 152 Practice Exam with answers
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BIo 152 Practice Exam with answers
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BIo 152 Practice Exam with answersUnder 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 - ** VERIFIED 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 - ** VERIFIED 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 - ** VERIFIED 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 - ** VERIFIED 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 - ** VERIFIED 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 - ** VERIFIED 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% - ** VERIFIED 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
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