5th Class Science Human Body and their Needs Human body (Food and health)

Human body (Food and health)

Category : 5th Class

Human body (Food and health)

 

Synopsis

  • The food that we eat contains five main components: carbohydrates, fats, proteins, vitamins, and

Table showing food components, sources and their functions 

   

Food components

Sources

function

Carbohydrates

Rice, wheat, sugar, potato

Energy giving foods

Fats

Oil, butter, ghee, milk, cheese

Energy giving foods

Proteins

Eggs, meat, fish, milk, pulses

Body building foods

Vitamins

Fruits and vegetables

Protective foods

Minerals

Fruits, vegetables, milk, eggs

Protective foods

Roughage

Cereals, fresh vegetables, fruits and salads

Prevent constipation

 

        

  • A diet that contains adequate amount of different components of food required for the healthy functioning of our body is called a balanced diet.

 

  • A disease is a state in which a function or a part of the body is no longer in a healthy condition.

 

  • Diseases are of two types - non-communicable and

 

  • Non-communicable disease are those that do not spread from one person to another.

 

  • Deficiency diseases - deficiency of a particular food, vitamin or mineral causes deficiency diseases.

 

Name of the deficiency disease

Caused by the deficiency of

Food containing the vitamin/ mineral

Night blindness

Vitamin A

Green leafy vegetables, papaya, carrot,

 

 

mango, milk, butter, and egg yolk

Beriberi

Vitamin B1

Milk, peas, cereals, and green vegetables

Rickets

Vitamin D

Milk and milk products

Scurvy

Vitamin C

Amla, orange, lemon, and tomato

Goiter

Iodine

Iodized salt

Anemia

Iron

Spinach, apple, guava, brinjal, and meat

 

  • Communicable disease are those that can spread from one person to another. They are spread by germs.

 

Tit bits

 

Tit bits

 

  • Vitamins are essential to your health but are only needed in tiny quantities. For example you need about 0.001 g (0.0003 oz) of vitamin B1, thiamine, each day. It only amounts to 28 g (1 oz) in your whole lifetime but without it your heart and nervous system will not function properly. About 12 vitamins are essential to health.

A lifetime's supply of all the vitamins you need only weighs about 250 g (8 oz)   

          

Table showing the types of germs, diseases caused and the mode of transmission.

 

Types of germs

Diseases caused

Mode of transmission

Bacteria

Cholera and typhoid Tuberculosis

Water Air

Viruses

Common cold, flu, viral fever, measles and mumps

Air

Protozoa

Dysentery Malaria

Water Insect bites

Fungus

Ringworm

Direct contact

 

  • We can protect ourselves from diseases like polio, diphtheria, whooping cough, tetanus and tuberculosis by getting vaccinated. We should keep our bodies healthy as a healthy body can fight off many diseases.

 

  • We should keep our surroundings clean. We should not let stagnant water breed mosquitoes as they spread malaria. Garbage should be removed promptly. People should be educated about health care,

 

  • People suffering from diarrhea should be given a solution of water, sugar and salt.


           

Notes - Human Body (Food and Health)
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