daniel.praecox
Quiz by , created more than 1 year ago

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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jill.examtime
Created by jill.examtime almost 11 years ago
daniel.praecox
Copied by daniel.praecox almost 11 years ago
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Osmosis and Diffusion

Osmosis and Diffusion

Question 1 of 12

1

Choose the answer that best describes an selectively permeable membrane?

Select one of the following:

  • Substances can pass through freely

  • Substances cannot pass through freely

  • Some substances can pass through freely, but other substances cannot pass through freely.

Explanation

Question 2 of 12

1

What is diffusion?

Select one of the following:

  • 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

Explanation

Question 3 of 12

1

If an animal cell was placed in a more concentrated solution, what happens?

Select one of the following:

  • 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.

Explanation

Question 4 of 12

1

If an animal cell was in a solution that is the same concentration as the animal cells cytoplasm, what happens?

Select one of the following:

  • Nothing, the volume stays the same.

  • The cell will enlarge

  • The cell will shrivel

Explanation

Question 5 of 12

1

What is the name of the pressure that describes the pressure of the cytoplasm and vacuole against the cell wall of a plant?

Select one of the following:

  • Osmotic Pressure

  • Turgor Pressure

  • Fluid Pressure

Explanation

Question 6 of 12

1

What is the regulatory cellular structure that Amoeba have to regulate osmosis?

Select one of the following:

  • Centriole

  • Contractile Vacuole

  • Nucleus

Explanation

Question 7 of 12

1

Finish the sentence: A hypertonic solution is _______?

Select one of the following:

  • 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.

Explanation

Question 8 of 12

1

Choose the answer that best describes this definition: A solution that has a lower concentration of solutes outside the cell than inside the cell?

Select one of the following:

  • Hypertonic Solution

  • Isotonic Solution

  • Hypotonic Solution

Explanation

Question 9 of 12

1

What is Brownian Motion?

Select one of the following:

  • 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.

Explanation

Question 10 of 12

1

The loss of water from the cytoplasm and the movement of the cell membrane away from the cell wall in a plant is called ____________?

Select one of the following:

  • Turgor Pressure

  • Plasmolysis

  • Hydrolysis

Explanation

Question 11 of 12

1

If a plant cell is placed in a more concentration solution that its cytoplasm, what happens?

Select one or more of the following:

  • 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.

Explanation

Question 12 of 12

1

Which answer best describes Osmotic Pressure?

Select one of the following:

  • 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

Explanation

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