Test for the presence of starch (LC 2026) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the primary function of starch in plants?
What is the primary function of starch in plants?
Energy storage
What type of molecule is starch classified as?
What type of molecule is starch classified as?
Polysaccharide
What are polysaccharides composed of?
What are polysaccharides composed of?
Many monosaccharides joined together
What is the role of cellulose in plant cells?
What is the role of cellulose in plant cells?
Structural role in cell wall
Which reagent is used to test for starch?
Which reagent is used to test for starch?
Iodine
What substance is used as the control?
What substance is used as the control?
Distilled water
What colour change indicates starch is present?
What colour change indicates starch is present?
Brown to blue/black
What happens to the control when iodine is added?
What happens to the control when iodine is added?
Remains brown
Besides the cell wall, where else is cellulose found in plants?
Besides the cell wall, where else is cellulose found in plants?
Phloem
How many monosaccharides do polysaccharides contain?
How many monosaccharides do polysaccharides contain?
More than two
