1|Page
BIOSCI E109 Final Exam Questions With Complete
Solutions.
Explain what happens to a cell in hypertonic solution
......ANSWER......the cell has less solute concentration so water moves
out of the cell to the surrounding solution which causes the cell to
shrivel
explain what happens to a cell in hypotonic solution
......ANSWER......water moves from the solution into the cell due to
higher solute concentration. The cell becomes lysed
explain what is meant by a synergism ......ANSWER......when two drugs,
etc are administered simultaneously and basically significantly
amplifies the effect of one another
what is an additive effect? ......ANSWER......when 2 drugs, etc add to
each others effect
explain the repolarization of an action potential ......ANSWER......Na+
channels close and K+ channels open allowing the K+ channels to
leave the cell and become more negative
pg. 1
BIOSCI E109 Final Exam Questions With Complete
Solutions.
Explain what happens to a cell in hypertonic solution
......ANSWER......the cell has less solute concentration so water moves
out of the cell to the surrounding solution which causes the cell to
shrivel
explain what happens to a cell in hypotonic solution
......ANSWER......water moves from the solution into the cell due to
higher solute concentration. The cell becomes lysed
explain what is meant by a synergism ......ANSWER......when two drugs,
etc are administered simultaneously and basically significantly
amplifies the effect of one another
what is an additive effect? ......ANSWER......when 2 drugs, etc add to
each others effect
explain the repolarization of an action potential ......ANSWER......Na+
channels close and K+ channels open allowing the K+ channels to
leave the cell and become more negative
pg. 1
