Function of Fat
What is one key function of fat in the body?
Provides energy and helps protect bones and organs.
What type of fat has only single bonds between carbon atoms and is solid at room temperature?
Saturated fat
Cholesterol is a type of ___ found in food and blood.
Fat
Fats are made up of carbon, hydrogen, and what other element?
Oxygen
What property allows fats to melt gradually over a range of temperatures?
Plasticity
What vitamins rely on fat for absorption and transport? (There's 4)
A, D, E, and K
What healthy fat has one double bond and is found in foods like olive oil and avocados?
Monounsaturated fat
What lipoprotein is known as the “good” cholesterol. (Hint: 3-Letter Acronym)
HDL (High-Density Lipoprotein)
The main form of fat in the body and food is called a ___.
Triglyceride
What fat is used in shortcrust pastry to give a crumbly texture?
Shortening (will take butter or lard)
In baking, what function of fat traps air when creamed with sugar, which helps cakes rise and giving them a light, fluffy texture?
Aeration
What group of fats includes omega-3 and omega-6 fatty acids?
Polyunsaturated fat
Too much cholesterol in the blood increases the risk of what disease?
Cardiovascular disease (CVD)
Triglycerides are made up of one glycerol and three ___.
Fatty acids
Olive oil is stored in green bottles to prevent what process? (Hint: it that causes rancidity)
Oxidation (oxidative rancidity)
Fat adds flavour and aroma, but what sensory property affects mouthfeel?
Texture
What processed form of unsaturated fat behaves like a saturated fat and increases bad cholesterol?
Trans fat
High levels of this “bad” cholesterol can lead to fatty deposits in arteries. What is the "bad" cholesterol called? (Hint: 3-Letter Acronym)
LDL (Low-Density Lipoprotein)
What is the process that adds hydrogen to unsaturated fats to make them more solid?
Hydrogenation
Trans fats are commonly found in which types of foods?
Processed, fried, or baked foods (e.g., pastries, biscuits, margarine)
When replacing butter with apple sauce in a cake recipe, what key function of fat is reduced, affecting tenderness and mouthfeel.
Tenderising and moistening function
What is the NRV (Nutrient Reference Value) of fat as a percentage of total energy intake? (Within 10%)
30%
What 2 types of fats is the biggest dietary factor that raises LDL (low-density lipoprotein) cholesterol levels?
Saturated and trans fats
Unsaturated fats have what kinds of bonds between carbon atoms?
Double (or triple) bonds
Which fat gives roasted potatoes a richer aroma and flavour than coconut oil?
Butter