PAX NLN Nursing/Ecology/Osmosis Exam Prep Questions & Answers 2024
The plasma membrane controls entry to and exit from the cell by means of either passive or active mechanisms. True or false: - ANSWERSTrue
Active transport - ANSWERSinvolves the use of energy in the form or ATP to move subst...
The plasma membrane controls entry to and exit from the cell by means of either passive or active
mechanisms. True or false: - ANSWERSTrue
Active transport - ANSWERSinvolves the use of energy in the form or ATP to move substances across the
membrane.
Passive transport - ANSWERSdoes not require energy and makes use of diffusion and filtration.
Diffusion - ANSWERSparticles move in a random manner, spreading evenly throughout an available space
and moving from regions of high concentration to those of low concentration.
a specific type of diffusion is that of water, or _______ - ANSWERSosmosis
Osmosis - ANSWERSdiffusion of water, water moves from an area of high water concentration (low
particle), to an area of low water concentration (high particle)
Isotonic - ANSWERSwhen the concentration of two solutions is the same (water is the same as inside the
cell)
Hypertonic - ANSWERSwhen the solute is more concentrated outside the cell than inside.
water leaves the cell Due to osmosis: from high water/low particle to low water/high particle.. as a
result: - ANSWERSthe cell shrinks
Hypotonic - ANSWERSthe solute concentration outside the cell is lower than that inside the cell.
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