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Leaving Certificate Biology (Diffusion and osmosis) Quiz on Diffusion and osmosis, created by eimearkelly3 on 10/07/2013.

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Diffusion and osmosis

Diffusion and osmosis

Question 1 of 14

1

Movement of molecules such as salt, sugar, and protein across a membrane is done by

Select one of the following:

  • Osmosis

  • Active transport

Explanation

Question 2 of 14

1

Diffusion

Select one of the following:

  • Is the spreading out of molecules from a region of low concentration to a region of high concentration

  • Is the spreading out of molecules from a region of high concentration to a region of low concentration

Explanation

Question 3 of 14

1

The difference in concentration should be _____ for the rate of diffusion to be high

Select one of the following:

  • High

  • Low

Explanation

Question 4 of 14

1

The surface area should be _______ in order for rapid diffusion

Select one of the following:

  • High

  • Low

Explanation

Question 5 of 14

1

The membrane should be _____ for effective diffusion

Select one of the following:

  • Dry

  • Moist

Explanation

Question 6 of 14

1

Cell walls should be ______ for effective diffusion

Select one of the following:

  • Thin

  • Thick

Explanation

Question 7 of 14

1

A solvent is a

Select one of the following:

  • Liquid that dissolves other substances

  • A substance that has been dissolved

  • A substance containing a substance dissolved and a substance that dissolves

Explanation

Question 8 of 14

1

A solution is

Select one of the following:

  • A liquid that dissolves other substances

  • A substance that is dissolvd

  • A substance that includes a dissolved substance and a substance that dissolves

Explanation

Question 9 of 14

1

A solute is

Select one of the following:

  • A liquid that dissolves other substances

  • A substance that is dissolved

  • A substance that includes both s substance dissolved and a medium in which it is dissolved

Explanation

Question 10 of 14

1

Animal and plant cells in an isotonic solution

Select one of the following:

  • Swell

  • Remain the same

  • Shrink

Explanation

Question 11 of 14

1

Animal and plant cells in a hypotonic solution

Select one of the following:

  • Swell

  • Remain the same

  • Shrink

Explanation

Question 12 of 14

1

Plant and animal cells in a hypertonic solution

Select one of the following:

  • Swell

  • Remain the same

  • Shrink

Explanation

Question 13 of 14

1

The cell wall of bacteria consists of

Select one of the following:

  • Polysaccharides/protein

  • Chitin

Explanation

Question 14 of 14

1

The cell wall of fungi consists of

Select one of the following:

  • Polysaccharides/proteins

  • Chitin

Explanation

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