Organisational Structure in Living Organisms
Organisational Structure in Living Organisms
The cell is the smallest unit of a living organism. It has a structure of its own and performs many functions. Group of cells make a tissue. Tissues collectively form organs. The different organs in turn, working together for a certain major activity, form an organ system. All these levels of organisation are called as level of organization of organisms.
Cells are the basic unit of life- they are the smallest functional units of an organism and are microscopic objects which contain a cytoplasm and a nucleus surrounded by a cell membrane .
Tissues are groups of cells of the same type or from the same place that accomplish a particular task. For eg; Muscle tissues, connective tissues, nervous tissue etc.
Organs are part of an organism that is usually self- contained and has a specific function or purpose. For eg: Heart, liver, kidneys etc.
Which of the following are correct ? (a) Organs are part of an organism that is usually self- contained and has a specific function or purpose. For eg: Heart, liver, kidneys etc. (b) Organ system is a group of organs that collectively do a particular job or function..For eg: For eg: Heart, liver, kidneys etc. etc. (c) Organism is an individual which can perform all the functions of its own. Different organ systems in an organism function in coordination.For eg: digestive system, circulatory system, urinary system etc. | |||
| Right Option : C | |||
| View Explanation | |||
Organism is an individual which can perform all the functions of its own. Different organ systems in an organism function in coordination for eg: ______________________ | |||
| Right Option : D | |||
| View Explanation | |||
The digestive system contains the stomach, oesophagus, small intestine, large intestine, pancreas, liver, gall bladder, rectum and anus is called _______________________ . | |||
| Right Option : C | |||
| View Explanation | |||
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