Last updated on Jun 09, 2026

15 – To Investigate Factors Affecting the Growth of Microorganisms (LC 2027) (Leaving Cert Biology): Quizzes

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11 questions from this quiz

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15 – To Investigate Factors Affecting the Growth of Microorganisms (LC 2027) (Leaving Cert Biology): Quizzes

Practise the questions

Why is yeast chosen for lab investigations instead of bacteria?

What two waste products does yeast produce when feeding on sugars?

What is the key difference between aseptic and sterile conditions?

What does a colorimeter measure in yeast growth investigations?

What does greater light absorbance indicate about a yeast culture?

What three pH conditions are tested in the yeast growth investigation?

Why are flask necks flamed before and after use in the investigation?

What is the purpose of the control in this investigation?

What is a cuvette used for in this investigation?

Which alternative factor can be tested to investigate yeast growth?

Which pharmaceutical product can be manufactured using microorganisms?

Explore Leaving Cert Biology Revision Notes by Topics

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)

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