Water as a Nutrient

Human gets it by drinking. Water is the important component of our body 65-75% weight of the body is water.

Water is a Nutrient
Water is a Nutrient


Water controls the temperature of our body by sweating and vaporizing. It is the important way of execution of the excretory substances from the body.

Maximum organic chemical reactions in the body perform through hydrolysis.

Biomedical Engineering

Biomedical Engineering : Production and designing of spare part for overcoming various defects in man. In leyman terms creating (developing) a part of human body.
e.g. artificial limbs, Iron lungs, Pacemaker etc.



Biomedical Engineering
Biomedical Engineering

What is living?

Q. What is living?

Ans. The word living cannot be defined. However, there are certain characters by which can be distinguished from non living.

For Example:-

» Growth : Increase in the number of cell or mass is called growth

» Reproduction : Living organism produce young ones of their same kind

» Metabolism : Chemical reaction occuring inside a living cell

» Response of stimuli : Living have the ability to sense the condition of their surrounding and respond to these stimuli

Living Cell
Living Cell

Nuclear Pollution

First of all we should know that “What is Pollution?”

Pollution: Unwanted changes in the chemical and physical features of air, water and land that are dangerous to human and other organisms, their life conditions, industrial process and cultural achievements are called pollution.

Now let’s see what is “Nuclear Pollution”?

Nuclear Pollution: Nuclear Pollution is created by radioactive rays and following can be the sources of such pollution :–

1. Pollution from the rays which are used in Medical Treatment.

2. Pollution created from fuels used in Atomic Reactors.


3. Pollution created from the use of Nuclear Weapons.

4. Pollution created remaining substances coming out of Atomic Power-Houses.



Now suggest us what we can do to reduce "Nuclear Pollution".

World's Smallest

1. Australia is the smallest continent with a land area of 7,618,000 sq km.



2. The Arctic Ocean is the smallest of the World's oceans with an area of 14,060,000 sq km .



3. Vatican City has an area of approximately 44 hectares (110 acres), and a population of just below 1000. Which makes Vatican City the smallest independent state in the world by both area and population.



4. The D River is a river in Lincoln City,Oregon, United States is known as the shortest river in the world with the measurement of 440 feet (130 m).