Last updated on Jun 09, 2026

8a, 8b & 8c – To Investigate Factors Affecting Rates of Osmosis Across Semi-Permeable Membranes (LC 2027) (Leaving Cert Biology): Quizzes

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8a, 8b & 8c – To Investigate Factors Affecting Rates of Osmosis Across Semi-Permeable Membranes (LC 2027) (Leaving Cert Biology): Quizzes

Practise the questions

What is osmosis?

What does Visking tubing allow to pass through?

In investigation 8a, which temperature shows the greatest mass increase?

Why does higher temperature increase osmosis rate?

In investigation 8b, which sucrose concentration shows the greatest mass increase?

Why does a steeper concentration gradient increase osmosis rate?

In investigation 8c, which tube length shows the greatest mass increase?

Why does larger surface area increase osmosis rate?

Which variable must be controlled in fair testing?

How long are tubes left in water during the experiment?

What is percentage change if initial mass is 10 g and final mass is 15 g?

Which term should be used to describe Visking tubing?

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Prescribed Experiments (LC 2026)

Prescribed Experiments (LC 2026)

Test for the presence of starch (LC 2026)

Test for the presence of starch (LC 2026)

Test for the presence of a reducing sugar (aka glucose) (LC 2026)

Test for the presence of a reducing sugar (aka glucose) (LC 2026)

Test for the presence of protein (LC 2026)

Test for the presence of protein (LC 2026)

Test for the presence of lipids (LC 2026)

Test for the presence of lipids (LC 2026)

Quantitative survey of a named plant using percentage frequency method (LC 2026)

Quantitative survey of a named plant using percentage frequency method (LC 2026)

Quantitative survey of a named animal using capture-recapture method (LC 2026)

Quantitative survey of a named animal using capture-recapture method (LC 2026)

Using a light microscope (LC 2026)

Using a light microscope (LC 2026)

Prepare and examine an animal cell using a light microscope (LC 2026)

Prepare and examine an animal cell using a light microscope (LC 2026)

Prepare and examine a plant cell using a light microscope (LC 2026)

Prepare and examine a plant cell using a light microscope (LC 2026)

Investigation of the effect of temperature on enzyme activity (LC 2026)

Investigation of the effect of temperature on enzyme activity (LC 2026)

Investigation of the effect of pH on enzyme activity (LC 2026)

Investigation of the effect of pH on enzyme activity (LC 2026)

Investigate the effect of heat denaturation on the rate of enzyme activity (LC 2026)

Investigate the effect of heat denaturation on the rate of enzyme activity (LC 2026)

Preparation and use of an immobilised enzyme (LC 2026)

Preparation and use of an immobilised enzyme (LC 2026)

Investigate the effect of light intensity on the rate of photosynthesis (LC 2026)

Investigate the effect of light intensity on the rate of photosynthesis (LC 2026)

Production of ethanol by fermentation (anaerobic respiration) (LC 2026)

Production of ethanol by fermentation (anaerobic respiration) (LC 2026)

Experiment to demonstrate osmosis (LC 2026)

Experiment to demonstrate osmosis (LC 2026)

Isolate DNA from a plant tissue (LC 2026)

Isolate DNA from a plant tissue (LC 2026)

Demonstrate the growth of leaf yeast on malt/starch agar (LC 2026)

Demonstrate the growth of leaf yeast on malt/starch agar (LC 2026)

Prepare and examine the transverse section of a dicotyledonous stem (LC 2026)

Prepare and examine the transverse section of a dicotyledonous stem (LC 2026)

Dissect, display and identify a sheep’s heart (LC 2026)

Dissect, display and identify a sheep’s heart (LC 2026)

Effect of exercise on heart rate (LC 2026)

Effect of exercise on heart rate (LC 2026)

Effect of exercise on breathing rate (LC 2026)

Effect of exercise on breathing rate (LC 2026)

Investigate the effect of IAA growth regulator on plant tissue (LC 2026)

Investigate the effect of IAA growth regulator on plant tissue (LC 2026)

Investigate the factors necessary for germination (LC 2026)

Investigate the factors necessary for germination (LC 2026)

Demonstration of the digestion of starch during germination by a seed (LC 2026)

Demonstration of the digestion of starch during germination by a seed (LC 2026)

1a & 1b – To Investigate Cells Using a Light Microscope (LC 2027)

1a & 1b – To Investigate Cells Using a Light Microscope (LC 2027)

2a, 2b, 2c & 2d – Testing for the Presence or Absence of Substances (LC 2027)

2a, 2b, 2c & 2d – Testing for the Presence or Absence of Substances (LC 2027)

3 – To Investigate Quantitatively the Level of Reducing Sugars in a Range of Food Samples (LC 2027)

3 – To Investigate the Level of Reducing Sugars in a Range of Food Samples (LC 2027)

4a, 4b, 4c, 4d & 4e – To Investigate Factors that Affect the Rate of an Enzyme-Catalysed Reaction (LC 2027)

4a, 4b, 4c, 4d & 4e – Factors that Affect the Rate of an Enzyme-Catalysed Reaction (LC 2027)

5a, 5b & 5c – To Investigate Factors that Affect the Rate of Photosynthesis (LC 2027)

5a, 5b & 5c – To Investigate Factors that Affect the Rate of Photosynthesis (LC 2027)

6 – To Investigate the Conditions Necessary for Fermentation (LC 2027)

6 – To Investigate the Conditions Necessary for Fermentation (LC 2027)

7 – To Investigate and Compare the Structures of Insect-Pollinated and Wind-Pollinated Plants (LC 2027)