Lipids (Leaving Cert Home Economics): Quizzes
📚Quizzes
Practise the questions
15 questions from this quiz
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Practise the questions
15 questions from this quiz
What is a key characteristic of lipids?
What is a key characteristic of lipids?
Insoluble in water
How many double bonds do saturated fatty acids contain?
How many double bonds do saturated fatty acids contain?
No double bonds
What physical state are monounsaturated fatty acids at room temperature?
What physical state are monounsaturated fatty acids at room temperature?
Liquid
Which is an omega-3 essential fatty acid?
Which is an omega-3 essential fatty acid?
Alpha-linolenic acid
In cis fatty acids, where are hydrogen atoms positioned around the double bond?
In cis fatty acids, where are hydrogen atoms positioned around the double bond?
Same side
How many fatty acids attach to one glycerol molecule to form a triglyceride?
How many fatty acids attach to one glycerol molecule to form a triglyceride?
Three
What is the smoke point of a lipid?
What is the smoke point of a lipid?
Temp producing continuous bluish smoke
Which type of rancidity results from fats reacting with oxygen?
Which type of rancidity results from fats reacting with oxygen?
Oxidative rancidity
What does hydrogenation convert unsaturated fats into?
What does hydrogenation convert unsaturated fats into?
Saturated fats
What property allows emulsifiers to stabilise oil and water mixtures?
What property allows emulsifiers to stabilise oil and water mixtures?
Both hydrophilic & hydrophobic parts
What type of emulsion is butter?
What type of emulsion is butter?
Water-in-oil
How much energy do lipids provide per gram?
How much energy do lipids provide per gram?
9 kcal/g
Which vitamins require lipids for absorption and transport?
Which vitamins require lipids for absorption and transport?
A, D, E, K
Where does the primary digestion of lipids occur?
Where does the primary digestion of lipids occur?
Small intestine
What is plasticity in relation to fats?
What is plasticity in relation to fats?
Ability to be shaped without breaking