Advertisements
Advertisements
Question
Give any four reasons why water is necessary in our body.
Advertisements
Solution
Importance of water in our body:
- Water is the major component of blood, which carries nutrients and oxygen, to and from all the cells.
- It is the major component of saliva and mucous, which lubricate the membranes that line our digestive system beginning with the mouth.
- It helps in regulating the temperature of the body.
- Water is very essential for digestion as well as absorption of food.
APPEARS IN
RELATED QUESTIONS
Why do we get instant energy from glucose?
What causes movement of food inside the alimentary canal?
In human digestive system, bile is secreted by ______.
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is ______.
Define the terms 'nutrients'.
What is the function of rectum?
Define the following term :
Omnivore
Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4, 5 and 6.
Name the following
The organ where protein digestion-begins
Write true or false for the below statement. Rewrite the false statements correctly.
Absorption of food takes place in small intestine
Put the following processes in their correct sequence of occurrence during digestion.
peristalsis; tongue pushes the food; grinding and mixing saliva; cutting and tearing of food
Observe the diagram given alongside and answer the following:
- Name the parts numbered 1-8.
- Which parts shown in the diagram are non-living?
- Is the tooth suited for cutting, tearing or grinding?
- What is the function of parts 8 and 7?
- What is the total number of teeth present in adult human beings?
- Write the dental formula of human beings.
The question has four options. Choose the correct answer:
Uvula can close the opening of
The question has four options. Choose the correct answer:
The dental formula of human beings is
Who is telling a lie?
Liver: I am the largest gland in the body.
Write down the explanation.
Explain why human dentition is considered as thecodont, diphydont and heterodont.
Breakdown of food into smaller molecules in our body is known as
(i)______ and (ii)______ form the common bile duct.
Identify which three of the following terminologies is true for human dentition.
Which part of the alimentary canal receives bile from the liver?
