What is Oxygen and nitrogen?

NITROGEN

Nitrogen is a colourless, tasteless and odourless gas. Nitrogen gas is slightly soluble in water. Nitrogen gas is not essential for breathing (or respiration). Nitrogen gas neither burns itself nor supports the process of burning. That is, nitrogen does not support combustion. Nitrogen is a very unreactive gas. In this respect, nitrogen is just the opposite of oxygen (which is a very reactive gas.

Nitrogen gas present in air is important for living things. All the living things need nitrogen com pounds for their growth. The plants use nitrogen gas of the air to make proteins. These proteins are used by the plants for their own growth as well as for the growth of human beings and other animals. Thus, nitrogen is needed by plants to make protein.

Oxygen:-

Oxygen is a colourless, tasteless and odourless gas. Oxygen gas is slightly soluble in water. Oxygen gas is essential for breathing (or respiration). We can live for several days without food and water but we will die very quickly without oxygen. So, the oxygen present in air is important for the living things. All the living things need oxygen of air for breathing.

Oxygen gas does not burn itself but it allows other things to burn in it. So, oxygen is a supporter burning (or supporter of combustion). Thus, oxygen (or air) is also necessary for the process of burning (or combustion) of fuels such as wood, coal, kerosene, petrol and LPG. Thus, oxygen supports life and combustion. Let us discuss this in somewhat detail.

What are life process?

WHAT ARE LIFE PROCESSES? The maintenance functions of living organisms must go on even when they are not doing anything particular. Even when we are just sitting in class even if we are just asleep, this maintenance job has to go on The processes which together perform this maintenance job an We processes . Since these maintenance processes are needed to prevent damage and break-down energy is needed for them. This energy comes from outside the body of the mdhadual organism. So there must be a process to transfer a source of energy from outside the body of the organism which we call food, to the inside, a process we commonly call nutrition If the body size of the organisins is to grow, additional raw material wit also be needed from outside. Since life on earth depends on carbon- based molecules most of these food sources are also carbon-based Depending on the complexity of these carbon sources, different organisms can then use different kinds of nutritional processes The outside sourc...

Nutrition in human being?

Nutrition in Human Beings The alimentary canal is basically a long tube extending from the mouth to the anus. we can see that the tube has different parts. Various regions are specialised to perform different functions. What happens to the food once it enters our body? We shall discuss this process here. We eat various types of food which has to pass through the same digestive tract, Naturally the food has to be processed to generate particles which are small and of the same texture. This is achieved by crushing the food with our teeth, Since the lining of the canal is soft, the food is also wetted to make its passage smooth. When we eat something we like, our mouth waters. This is actually not only water..but a fluid called saliva secreted by the salivary glands. Another aspect of the food we ingest is its complex nature. If it is to be absorbed from the alimentary canal, it has to be broken into smaller molecules. This is done with the help of biological catalysts called enzyme...

Computer programming language

COMPUTER PROGRAMMING LANGUAGES Generally, a language is considered as the medium of communication among people. Likewise, to communicate with computer systems, we use computer programming languages. Usually, we provide a particular set of instructions to the computer to perform a specific task. The set of instructions given to a computer is known as a Program languages. For example, BASIC, C, C++, Java. Such programs are written in languages close to the human languages and are called high level COBOL, Fortran, etc. Each language has its own set of keywords and special syntax for writing the program. But computer cannot understand such languages. Computer understands only binary language that consists of binary numbers that is 0 and 1. So high level programs are converted into low level language program or machine language program using translators. In this chapter, let us study different generations of computer languages. First Generation language-Machine Language Machine Langu...

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