Question

What are life processes ? Explain some
important life processes which are needed for
living beings.​

Answer 1

Answer:

Explanation:

The existence of life on the planet earth is mainly based on certain functions and processes. There are certain basic vital processes which are essential for an organism to stay healthy and to maintain the proper functioning of the body organ system, which all are necessary for survival. These basic essential activities performed by an organism are called as life processes.

Altogether there are six life processes which predict the condition of life. The important life processes include nutrition, transportation, metabolism, respiration, reproduction, and excretion.

Answer 2

The main processes, that are carried out

by all the living organisms in order to sustain their existence as living beings, are called life processes. Some important life processes are as follows:

(1) Nutrition : A process to transfer a source of energy i.e., food from outside the body of the organism to the inside is commonly called nutrition.

• Most of the food sources are carbon based and depending on the complexity of such sources, different organisms can use different kinds of nutritional processes.

(2) Respiration :A process of breakdown of food sources to provide energy for various biological activities is called respiration.

• By this, carbon based food source broken and converted to a uniform source of energy i.e., ATP. Most of organisms use oxygen for this called aerobic organisms where as some can do this in absence of oxygen called anaerobic organisms.

(3) Transport: In case of a single celled

organism, no specific organs for taking food, exchange of gases or removal of wastes are needed because the entire surface of the organism is in contact with the environment.

• In multicellular organisms all the cells may not be in direct contact with the surrounding environment. The simple diffusion will not meet the requirement of all the cells. so,transport of food and oxygen to all the cells of the body and waste collected from cells to excrete them, special transportation system required.
• in plants phloem and xylem tissue and in animal blood circulatory system function in transportation.

(4) Excretion: Nitrogenous metabolic waste are discarded from body by this process.

• Single celled animals ,remove waste by simple diffusion from the body surface full stop in multicellular organisms special tissue, organ system designed for excretion.