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JC Home Economics
JC Home Economics

Protein- Home Economics



carbon, hydrogen, nitrogen, oxygen

  • These elements make up units called amino acids and is joint together by peptide links.
Amino acids and peptide links
Amino acids and peptide links
  • Protein helps in the growth and repair of body cells.
  • It produces antibodies and hormones and enzymes.
  • Nitrogen is the main element that is responsible for growth.

Protein can be found in Animal protein (HBV) and Plant protein (LBV).


          Animal                  Plant

  • meat.                      beans
  • Eggs.                      nuts
  • Milk.                       peas
  • Fish.                       Seeds
  1. Advantages of plant protein is that there is less fat in them.
  2. It contains more cellulose
  3. It is cheaper to buy
  4. It is more ethical.

The study of Meat - Home Economics



Carcass meat

  • Beef, Pork, Lamb


  • Chicken, Duck, Turkey


  • Liver, Kidney


  • Pheasant, Deer

Nutritive value of Meat


Meat is an excellent source of high biological value protein. This makes it an important food for growth and repair.


Meat is generally considered to be a high-fat food. It contains saturated fat, which can lead to Coronary Heart Disease if over consumed. However, some meats (lean meats) will be lower in saturated fats. e.g chicken.


Meat does not contain carbohydrates therefore it should be served with food that has a high amount of carbohydrates e.g... (More)

  • The Food Pyramid

Healthy Eating Guidelines

 Eat less fat

 Eat less sugar

 Eat less salt

 Eat more fruit and veg

 Eat a variety of foods

 Drink more water

 Drink alcohol in moderation

Key Terms

Balanced Diet: Eating the correct amount of foods for what our bodies need.

Classification of the 6 Nutrients

There are six nutrients that our bodies need. These are protein, carbohydrates, fat, vitamins, minerals and water.

Nutrient: A chemical found in food that nourishes the body

Composition: What the nutrients is made up of

Source: A food that contains the... (More)

Healthy Eating – Junior Cert Home Economics Terms

the five senses are – smell, sight , taste, touch and hearing

the energy value of food is measured in – kilocalories of kilojoules

examples of staple foods are – bread and potatoes

what is bad nutrition – malnutrition

too little food causes – starvation

too much food causes – obesity

what is organic food – food produced without the use of artificial chemicals

a diet with no meat is called a – vegetarian diet

another name for fast food is – convenience or processed

diets often contain too much – salt or sugar