Fat

Question 1

what is the functions of fat?

Answer 1

fat is broken down in the body by a process of oxidation and energy is released
1g of fat = 9kcal or 37kj
formation of adipose tissue - excess fat that is not immediately used is converted into adipose tissue and stored in the fatty cells over the body and it has three functions
1. energy reserve
2. protection of delicate muscles
3. insulating layer to keep a constant body temp
- stately factor in the diet
- adds taste and flavour to food

Question 2

what is the chemical name for omega 6 and what are the functions of it?

Answer 2

omega 6 is called linolenic acid
- as part of makeup of cells
- prevents poor growth
- helps improve skin problems
- eicosanoids like prostaglandins help reduce inflammation of the heart and prevent blood clotting
- maintain a healthy immune system

Question 3

what is the chemical name of omega 3 and the functions of it?

Answer 3

alpha linolenic acid
- structural component of the Brain
improves cognitive function
- reduces inflammation
- reduces blood pressure
- reduces blood clots
- helps treatment of psoriasis and arthritis

Question 4

What is the definition of cholesterol?

Answer 4

Cholesterol is a waxy fat substance that belongs to a class of molecules called steroids. it is found in many animal food and it is in your bloodstream and body cells
80 - 85% 0f cholesterol is endangers
15 - 20% comes from external sources e.g meat

Question 5

what is HDL cholesterol and what is its role?

Answer 5

High density lipoproteins proteins - good cholesterol
helps usher away LDL away from the arteries and other body tissues ti the liver, where it is broken down into bile and disposed of and thus prevents plaque forming which would be disposed in the artery
reduces risk of atherosclerosis, blood clots

Question 6

What is LDL cholesterol

Answer 6

Low density lipoproteins proteins - bad cholesterol

Question 7

Think of non-modifiable and modifiable factors

What causes high cholesterol

Answer 7

• a diet high in saturated fat and high in cholesterol
• lack of exercise may increase ldl cholesterol
• genetics if they have a direct relative male under 55 with cvd and female under 65 with cvd
• obesity
• age and sex - cholesterol rises slightly with age and men are likely to be caused as women have higher HDL levels
• excessive alcohol drinking
• stress
• smoker