PNB 2250 Exam 3 Uconn Questions and
Answers
The loss of digestive wastes, CO2 and NH4+ are examples of _______________. - Ans:-excretion
The regulation of H2O and solutes is via ___________________. - Ans:-osmoregulation
Water moves from an area of ________ (low, high) osmolarity to an area of ...
Isotonic (isoosmotic): two solutions with the _________ osmolarity and H2O content. - Ans:✔✔-same
Which solution has the highest osmolarity?
A) 1M/L sucrose
B) 1M/L NaCl
C) 0.1M/L CaCl2
D) 1M/L ZnCl2 - Ans:✔✔-D
The movement of water across the cell membrane can ___________ cells - Ans:✔✔-destroy
Because of the factors affecting diffusion, H2O will move from an area of higher concentration (low
osmolarity) to an area of lower concentration (higher osmolarity) if the cell membrane is permeable to
H2O [6.03]. The movement of H2O in this way is a very powerful force, capable of rupturing membranes
and causing damage to animals. This force is known as ________________ ________________. -
Ans:✔✔-osmotic pressure
Placement of cells into which solution will cause them to burst?
A) Isotonic
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