Osmosis/Diffusion Flashcards
What is osmosis?
Osmosis is the movement of water molecules through a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.
True or False: Osmosis requires energy input.
False
Fill in the blank: Osmosis occurs in response to differences in __________ concentration.
solute
What type of membrane is essential for osmosis to occur?
A semipermeable membrane.
What happens to a cell in a hypertonic solution?
The cell will lose water and shrink.
Multiple Choice: Which of the following describes a hypotonic solution? A) Higher solute concentration outside the cell B) Lower solute concentration outside the cell C) Equal solute concentration inside and outside the cell
B) Lower solute concentration outside the cell
What is the effect of osmosis on plant cells when placed in a hypotonic solution?
Plant cells become turgid due to water uptake.
True or False: Osmosis can occur in both living and non-living systems.
True
What is the primary solvent involved in osmosis?
Water.
Fill in the blank: The process of osmosis is crucial for maintaining __________ in cells.
homeostasis
Multiple Choice: In which direction does water move during osmosis? A) From high solute concentration to low solute concentration B) From low solute concentration to high solute concentration C) Both A and B
B) From low solute concentration to high solute concentration
What is the role of aquaporins in osmosis?
Aquaporins are proteins that facilitate the rapid transport of water across cell membranes.
Short Answer: What is the consequence of osmosis on red blood cells placed in a saline solution?
Red blood cells will crenate (shrink) in a hypertonic saline solution.
pressure potential
only in plant cells (cell wall)
cell wall resists expansiom from water intake
hypertonic
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