Last updated on Jun 13, 2026

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

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13 questions from this quiz

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

Practise the questions

What does qualitative testing determine?

Which reagent is used to test for starch?

What colour indicates a positive result in the iodine test for starch?

Why does the iodine test work for detecting starch?

Which sugars does Benedict's test detect?

What colour change indicates reducing sugars are present using Benedict's test?

How long must Benedict's test be heated for?

What does a green colour indicate in Benedict's test?

Which reagent tests for protein?

What colour indicates protein is present in the Biuret test?

Does the Biuret test for protein require heating?

What does the brown paper test detect?

What indicates lipids are present in the brown paper test?

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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)