Test for the presence of lipids (LC 2026) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are the subunits of lipids?
What are the subunits of lipids?
Triglycerides
What are triglycerides composed of?
What are triglycerides composed of?
Glycerol and three fatty acids
What do lipids provide in living organisms?
What do lipids provide in living organisms?
Protection, insulation, and energy
What form are lipids found in within the cell membrane?
What form are lipids found in within the cell membrane?
Phospholipids
What does a phospholipid contain?
What does a phospholipid contain?
Glycerol, two fatty acids, and phosphorus
What are the two types of lipids?
What are the two types of lipids?
Fats and oils
What is the physical state of oils at room temperature?
What is the physical state of oils at room temperature?
Liquid
What is the physical state of fats at room temperature?
What is the physical state of fats at room temperature?
Solid
What is used as the control in the lipid test?
What is used as the control in the lipid test?
Distilled water
What indicates a positive result for lipid presence?
What indicates a positive result for lipid presence?
Permanent translucent spot on brown paper
What happens to the control sample with distilled water?
What happens to the control sample with distilled water?
The translucent stain disappears
Why wait after adding water to the control before checking for a spot?
Why wait after adding water to the control before checking for a spot?
To allow water to dry/evaporate
