Proteins

Why Do We Need Protein?

Protein is a type of macronutrient. A macronutrient is a type of food that we need lots of in our diet. Foods like eggs, chicken, salmon and milk all contain protein.

Amino acids

Amino acids, which are sometimes referred to as the body's 'building blocks', make up proteins.
The human body can only produce some types of amino acids (non-essential) so we must eat the ones our bodies can't produce (essential).

Uses of proteins

Growth - general body growth as well as the growth of specific body parts, like muscles, bones and skin.
Repair - mending organs, muscles and tissues after we get ill or are injured.
Maintenance - producing antibodies to prevent illness and enzymes to help digestion.
Secondary source of energy - if the body doesn't have enough carbohydrates and fats, protein can be used as a reserve energy source.

Low and High Biological Value Proteins

Not all proteins have the same biological value.

High biological value (HBV) proteins

Have all the essential amino acids that humans need.
Mostly located in animal sources (like chicken, salmon etc.)
Soya beans also contain HBV proteins.

Low biological value (LBV) proteins

Don't contain all the essential amino acids that humans need.
Only located in plant-based foods.
- E.g. cereals, pulses, nuts etc.

Protein complementation

Protein complementation is a way of making sure that we get all the essential amino acids we need in our diets. It involves combining various LBV proteins.
- E.g. peanut butter and wholegrain bread are both lacking some essential amino acids. But a peanut butter sandwich gives us all the necessary essential amino acids.

1Food Preparation Skills

1.1Food Preparation Skills

1.1.1General Practical Skills

1.1.2Knife Skills

1.1.3Preparing Fruit, Vegetables & Using Equipment

1.1.4Cooking Methods: Prepare, Shape & Combine

1.1.5Sauce Making, Tenderising & Marinating

1.1.6Dough & Pastry

1.1.7Shaping & Finishing Dough

1.1.8Raising Agents & Mixtures

1.1.9End of Topic Test - Food Preparation Skills 1

2Food, Nutrition & Health

2.1Macronutrients

2.1.1Proteins

2.1.2Proteins 2

2.1.3Fats

2.1.4Carbohydrates

2.1.5Carbohydrates 2

2.2Micronutrients

2.2.1Fat-Soluble Vitamins

2.2.2Water-Soluble Vitamins

2.2.3Minerals & Water

2.2.4Minerals & Water 2

2.2.5End of Topic Test - Macro & Micronutrients

2.3Nutritional Needs & Health

2.3.1Informed Choices for a Balanced Diet

2.3.2Informed Choices for a Balanced Diet 2

2.3.3Energy Needs

2.3.4Nutritional Analysis

2.3.5Diet Modifications

2.3.6Diet-Related Problems

2.3.7Diet-Related Problems 2

2.3.8End of Topic Test - Nutritional Needs & Health

3Food Science

3.1Cooking of Food & Heat Transfer

3.1.1Reasons for Cooking & Heat Transfer

3.1.2Water-Based Cooking Methods

3.1.3Fat-Based Cooking Methods

3.1.4Dry Cooking Methods

3.1.5Dry Cooking Methods 2

3.2Functional & Chemical Properties of Food

3.2.1Proteins & Carbohydrates

3.2.2Fats & Oils

3.2.3Raising Agents

3.2.4End of Topic Test - Food Science

4Food Safety

4.1Food Spoilage & Contamination

4.1.1Microorganisms & Signs of Food Spoilage

4.1.2Enzymes & Signs of Food Spoilage

4.1.3Food Poisoning

4.1.4Bacterial Contamination

4.1.5Microorganisms in Food Production

4.2Principles of Food Safety

4.2.1Temperature Control

4.2.2Ambient Foods & Food Labels

4.2.3Preparing, Cooking & Serving Food

4.2.4End of Topic Test - Food Safety

5Food Choice

5.1Factors Affecting Food Choice

5.1.1Factors Which Influence Food Choice

5.1.2Food Choices

5.1.3Religious Food Choices

5.1.4Food Labels

5.1.5Mandatory Food Labels

5.1.6Optional Food Labels

5.1.7Marketing Influences

5.1.8End of Topic Test - Food Choice

5.2British & International Cuisines

5.2.1British Cuisine

5.2.2Japanese Cuisine

5.2.3Japanese Ingredients & Dishes

5.2.4Spanish Cuisine

5.2.5Spanish Ingredients & Dishes

5.3Sensory Evaluation

5.3.1Taste Receptors & Olfactory Systems

5.3.2Sensory Testing Methods

5.3.3Sensory Testing Methods 2

5.3.4End of Topic Test - Cuisines & Senses

6Food Provenance

6.1Environmental Impact & Sustainability of Food

6.1.1Food Sources - Intensive & Organic Farming

6.1.2Food Sources - Genetically Modified Crops

6.1.3Food Sources - Reared Food

6.1.4Food Sources - Caught Food

6.1.5Food & The Environment

6.1.6Food & The Environment 2

6.1.7Sustainability of Food

6.1.8Sustainability of Food 2

6.1.9End of Topic Test - Environmental Impacts

6.2Food Processing & Production

6.2.1Primary Food Processing

6.2.2Primary Food Processing 2

6.2.3Secondary Food Processing

6.2.4Fortification

6.2.5Additives

6.2.6End of Topic Test - Food Processing & Production

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