Advertisements
Advertisements
Question
List the six main purposes for which food is required by the body.
Advertisements
Solution
Need for food by the body:
(1) Growth: Food is necessary for building new protoplasm or cells. This helps in the growth of an organism.
(2) Repair: Food provides materials for the repair of worn out or damaged cells and tissues.
(3) Energy: We obtain energy from food. This energy is required for carrying out various life functions.
(4) Maintenance: Nutrients obtained through food help to maintain the chemical composition of cells.
(5) Provision of raw materials: Raw materials required for the synthesis of products such as enzymes, hormones, sweat, milk, etc. are obtained through food.
(6) Protection: Food provides protection from diseases and infection.
APPEARS IN
RELATED QUESTIONS
Name the sources of the following:
Cellulose
Classify according to food-type.
Human
Name some unicellular organisms in which all life-processes take place within their unicellular body.
Very Short Answer Type Questions:
Name two sources of proteins provided by animals.
Pitcher plant traps insects because it ______.
Can you give me a name?
Solve the following riddles by writing the name of the organism and its mode of nutrition. One riddle is solved to help you.
I am tall but I cannot move. I am green and can prepare my own food. ______, ______
Tasty food is not always nutritious and nutritious food may not always be tasty to eat. Comment with examples.
List all those components of food that provide nutrients.
‘Water does not provide nutrients, yet it is an important component of food’. Explain.
The lipids can provide a maximum of ______ of energy.
