Prescribed Experiments (LC 2026) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
15 questions from this quiz
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Practise the questions
15 questions from this quiz
How many prescribed experiments are there for LC Biology?
How many prescribed experiments are there for LC Biology?
21
In which section of the paper are prescribed experiments examined?
In which section of the paper are prescribed experiments examined?
Section B
How many marks in total are available for experiments in Section B?
How many marks in total are available for experiments in Section B?
60 marks
What is the purpose of a control in an experiment?
What is the purpose of a control in an experiment?
To provide a standard for comparison
Which chemical is used to test for a reducing sugar?
Which chemical is used to test for a reducing sugar?
Fehling's solution
What is the positive result for the reducing sugar test?
What is the positive result for the reducing sugar test?
Blue to brick red
What colour change indicates a positive protein test?
What colour change indicates a positive protein test?
Blue to lilac
What is the positive result when testing for starch using iodine?
What is the positive result when testing for starch using iodine?
Brown to blue/black
Why is ice cold ethanol used in DNA isolation?
Why is ice cold ethanol used in DNA isolation?
DNA is insoluble in it
What is the maximum time for heating at 60°C in DNA isolation?
What is the maximum time for heating at 60°C in DNA isolation?
15 minutes
What is observed when using Elodea in a photosynthesis experiment?
What is observed when using Elodea in a photosynthesis experiment?
Oxygen bubbles produced
What is the function of a quadrat in ecology?
What is the function of a quadrat in ecology?
Records plant frequency in an area
What does IAA promote at high concentration?
What does IAA promote at high concentration?
Shoot growth
Why is a cover slip placed at a 45° angle?
Why is a cover slip placed at a 45° angle?
To prevent air bubbles
Why is an incubator set at 35°C for the leaf yeast experiment?
Why is an incubator set at 35°C for the leaf yeast experiment?
Enzymes work best at this temp