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Osmosis and Diffusion

Description

This quiz assesses the content covered in the notes on the process of osmosis and diffusion, osmotic pressure and the selectivity of cell membranes. It would appeal to anyone studying intermediate level biology.
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Quiz by daniel.praecox, updated more than 1 year ago More Less
jill.examtime
Created by jill.examtime almost 11 years ago
daniel.praecox
Copied by daniel.praecox almost 11 years ago
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Resource summary

Question 1

Question
Choose the answer that best describes an selectively permeable membrane?
Answer
  • Substances can pass through freely
  • Substances cannot pass through freely
  • Some substances can pass through freely, but other substances cannot pass through freely.

Question 2

Question
What is diffusion?
Answer
  • The movement of water from an area of high concentration to an area of low concentration
  • The movement of molecules from an area of high concentration to an area of low concentration
  • The movement of molecules from an area of low concentration to an area of high concentration

Question 3

Question
If an animal cell was placed in a more concentrated solution, what happens?
Answer
  • The cell will shrivel, and possibly die due to loss of water due to osmosis.
  • The cell will expand, and possibly die to the gaining of water due to osmosis.
  • The cell will shrivel, and possible die due to the gaining of water due to osmosis.

Question 4

Question
If an animal cell was in a solution that is the same concentration as the animal cells cytoplasm, what happens?
Answer
  • Nothing, the volume stays the same.
  • The cell will enlarge
  • The cell will shrivel

Question 5

Question
What is the name of the pressure that describes the pressure of the cytoplasm and vacuole against the cell wall of a plant?
Answer
  • Osmotic Pressure
  • Turgor Pressure
  • Fluid Pressure

Question 6

Question
What is the regulatory cellular structure that Amoeba have to regulate osmosis?
Answer
  • Centriole
  • Contractile Vacuole
  • Nucleus

Question 7

Question
Finish the sentence: A hypertonic solution is _______?
Answer
  • one with a higher concentration of solutes outside the cell than inside the cell.
  • one with a lower concentration of solutes outside the cell than inside the cell.
  • one with the same concentration of solutes outside and inside the cell.

Question 8

Question
Choose the answer that best describes this definition: A solution that has a lower concentration of solutes outside the cell than inside the cell?
Answer
  • Hypertonic Solution
  • Isotonic Solution
  • Hypotonic Solution

Question 9

Question
What is Brownian Motion?
Answer
  • The random motion of particles suspended in a fluid.
  • The strict motion of particles suspended in a fluid.
  • The calculated motion of particles suspended in a fluid.

Question 10

Question
The loss of water from the cytoplasm and the movement of the cell membrane away from the cell wall in a plant is called ____________?
Answer
  • Turgor Pressure
  • Plasmolysis
  • Hydrolysis

Question 11

Question
If a plant cell is placed in a more concentration solution that its cytoplasm, what happens?
Answer
  • Water moves out of the cell due to osmosis.
  • Water moves into the cell due to osmosis.
  • The vacuole and cytoplasm shrivel and the cell membrane becomes detached from the cell wall.
  • The cell becomes flacid, loses turgor pressure.

Question 12

Question
Which answer best describes Osmotic Pressure?
Answer
  • the pressure which needs to be applied to a solution to enable the inward flow of water across a semi-permeable membrane
  • the pressure which needs to be applied to a solution to prevent the inward flow of water across a semi-permeable membrane
  • the pressure which needs to be applied to a solution to prevent the outward flow of water across a semi-permeable membrane
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