Life process class 10 science NCERT chapter 6 notes. NCERT class 10 science chapter 6 life process. The scalable notes and solutions for class 10 science NCERT chapter 6, Life Process.
Life Process – introduction
How can we distinguish what is alive and not alive?
There are many observable factors to detect alive and not alive.
Example: dog running, cow chewing cud, man shouting loudly on the street, etc. are the symptoms of a living beings.
Just hope, when a dog or cow at the time of sleep! are they now alive or not alive? And also how can we define alive or not alive in plants? One can say that, the green colors are the alive signal, but not apply in many plants. Because their colors are in different colors.
Here in plant field, it says the growing factors to define it alive. But some of them not visibly growing, still alive.
Molecular movements are very small scales. So that they can not seen by naked eye.
Is invisible molecular movement necessary for life?
Yes, molecular movements are the life process of a living beings from birth to death.
The viruses are do not show any molecular movement until they infect some cell.
Why molecular movements needed for life?
Molecular movement needed for life, because of the effects of the environment. These are organized ordered nature of living structures which is very likely to keep break down over time.
If order breaks, what will happen?
If order breaks down, the organism will no longer be alive. So living creatures must keep repairing and maintaining their structures.
6.1 What Are Life Process?
The maintenance functions of living organisms must go on even when they are not doing anything particular.
Life process: The processes of living organisms to maintain the functions with together for life performance are called life process.
The maintenance processes are needed to prevent damage and break down. And Energy also needed for maintenance which comes from the outside by transfer from food.
Food: The source of energy from outside the body of the organism is called food.
Nutrition: The process by which it transfers energy from the outside food to the body of organism is commonly called as nutrition.
Life on earth depends on carbon based molecules. Most of the food sources are also carbon based.