MEANING, TYPES OF FOOD AND BASIC FOOD GROUPS
MEANING, TYPES OF FOOD AND BASIC FOOD GROUPS
CONTENT
- Meaning of Food
- Different Types of Food
- Basic Food Groups
Meaning of Food
Food is any substance which when taken into the body of living organism is capable of maintaining growth and development. It regulates the body functions and controls harmful or dangerous substances that might enter into the body.
Different Types of Food
Rice | Eggs | |
Garri | Vegetables | |
Semovita | Yam | |
Bread | Beans | |
Tea | Porridge | |
Basic Food Groups
It is necessary to classify food types into groups. There are five groups.
- Milk and milk producer group
- Meat group
- Fruits and vegetable group
- Bread and cereal group
- Tuber group
EVALUATION
- What is food?
- How many classes of food do we have? List them.
- Name some foods you know.
MEANING AND CLASSES OF FOOD
CONTENT
- Meaning of Food
- Classes of Food
Meaning of Food
Food is any substance which when taken into the body, serves to nourish and build up tissues as well as provide needed energy.
Classes of Food
There are six classes of food, namely:
- Carbohydrates
- Proteins
- Fats and oil
- Mineral salts
- Vitamins
- Water
Classes of Food | Sources | Functions | |
Carbohydrate | yam, garri, cassava, yam flour, maize, wheat, potato |
Provides the body with energy |
|
Proteins | meat, beans, fish, soya beans, eggs, peanuts, cheese, chicken. |
For growth and repair of body tissues. |
|
Fats and oils | palm oils, groundnuts oil, butter, margarine, sardine, pork, egusi oil, cod liver oil |
Provides the body with heat and energy for daily activities. |
|
Mineral salts | milk, meat, liver, cheese, vegetable and sea foods |
Proper functioning of the body. |
|
Water | rain, spring, brooks, vegetables, fruits, beverages and tea |
For easy digestion and maintenance of body fluid. |
|
Vitamins | liver, eggs, fish, oil, citrus, and tomatoes |
For protection against diseases. |
|
EVALUATION
- How many groups can we classify food?
- What are the functions of classes of food?
THE IMPORTANCE OF FOOD
CONTENT
- Meaning of Food
- Importance of Food
Meaning of Food
Food is anything we eat whether solid or liquid that nourishes the body.
Importance of Food
Food is important for the following reasons:
- Food eliminates hunger
- It provides energy for various physical activities
- It enhances growth
- It is a resistance to disease
- Food makes one to recover from illness
- It serves as a source of income
- It is eaten for the purpose of adequate nutrition
- Food makes for healthy living
EVALUATION
- What is food?
- What are the importance of food?
PATHOGENS, DISEASES AND THEIR PREVENTION
CONTENT
- Meaning of Communicable Diseases
- Meaning of Disease
- Meaning of Pathogens
- Types of Diseases
Meaning of Communicable Diseases
These are diseases that can be transferred from one person to another.
Meaning of Disease
A disease is a state in which one departs from normal functioning state of the body and is unwell.
Meaning of Pathogens
Disease causing organisms are called pathogens, or more commonly as germs, “Most pathogens are microscopic and are referred to as microbes or micro-organisms. Examples are, bacteria, virus, fungi, protozoa, parasitic warms.
Types of Diseases
- Air-borne diseases
- Food borne diseases
- Insect borne diseases
- Contagious and sexually transmitted diseases
- Water-borne diseases
EVALUATION
- What is disease?
- Describe pathogens and give examples.
- List five types of diseases.
DISEASES CAUSED BY PATHOGENS
CONTENT
- Diseases Caused by Pathogens
- Effects of Diseases on Athletes’ Performance in Physical Activities
- Common Athletes’ Infection
Diseases Caused by Pathogens
The following are the diseases caused by pathogens:
- Typhoid
- Diarrhoea
- Tuberculosis
- Syphilis
- Chicken pox
- Dysentery
- Cholera
- Measles
- Influenza
- Mumps
- Common cold
Effects of Diseases on Athletes’ Performance in Physical Activities
Diseases have some negative effects in athletes’ performance in physical activities. The following are some of them:
- Decreased performance
- Muscle wasting
- Impaired motor coordination
- Circulation deregulation
- Unexpected death
- Severe injuries
Common Athletes’ Infection
The following are common athletes’ infections:
- Viral hepatitis
- Leptospirosis
- Gastroenteritis
- Bacterial infections
- Herpes
- Myocarditis
EVALUATION
- What are the effects of disease on athlete’s performance in physical activities?
- Mention 3 common athletes’ infections.
CAUSES OF DISEASES AND THEIR PREVENTION
CONTENT
- Causes of Diseases
- Preventive Measures against Diseases
Causes of Diseases
Diseases are caused by the following factors:
- Inadequate nutrition
- Lack of Exercise
- Dirty environment
- Use of unsafe water
- Improper disposal of sewage and refuse
- Not seeking and getting treatment on time
- Overcrowding and poor ventilation
- Bad/poor health habits
- Ignorance
Preventive Measures against Diseases
Diseases can be prevented in the following ways:
- Adequate nutrition
- Adequate warm up and Exercise
- Clean environment
- Use of safe water
- Proper disposal of sewage and refuse
- Seeking and getting treatment on time
- Avoid Overcrowding and poor ventilation
- Good hygiene
- Health education
- Immunization
- Vaccination
EVALUATION
- Identify health habits or practices that could lead to outbreak of diseases in your school community.
- As a student, how would you prevent outbreak of infectious diseases in your school?