Cells and Tissues
The smallest, basic, and structural component of the body is a cell. It is the basic functional unit of life. No organism can exist on this Earth without a cell. Thus, it is the fundamental unit. These cells perform the major functions of the body. The term cell was given by Robert Hooke, who stated that all organisms’ bodies, whether unicellular or multicellular, are made of cells. In single-celled organisms such as amoeba and protozoa, all the body functions are performed by a single cell. The multicellular organisms have collective cells which perform a specific function in the body.
Types of Tissues
The smallest, basic, and structural component of the body is the cell. It is the functional unit of life. No organism can exist on this Earth without a cell. An organism's body, whether unicellular or multicellular, is made of cells. In unicellular organisms such as amoeba and protozoa, all the body functions are performed by a single cell. The multicellular organisms have collective cells which perform a specific function in the body. Tissues are a group of cells that work together to perform a particular function in the body. They make a series of networks or a system to coordinate with the different tissues in the body, forming a tissue system. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.
Tissue System
The smallest, basic, and structural component of the body is the cell. It is the functional unit of life. No organism can exist on this Earth without a cell. An organism's body, whether unicellular or multicellular, is made of cells. In unicellular organisms such as amoeba and protozoa, all the body functions are performed by a single cell. The multicellular organisms have collective cells which perform a specific function in the body. Tissues are a group of cells that work together to perform a particular function in the body. They make a series of networks or a system to coordinate with the different tissues in the body, forming a tissue system. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.
Match the tissue shown with its function.
option:
1. Present in bone marrow, spleen, and lymph nodes.
2. Allows us to think.
3. Triceps brachii are needed for arm extension.
4. Provides a smooth surface.
5. Support and binding of other tissues.
6. Stores energy in the form of fat.
7. Propulsion of food and liquid through gastrointestinal tract.
8. Allows the ribcage to be flexible;necessary for breathing to occur.
9. Protective,withstands abrasion.
10. Secretion (mucus, HCI, etc.), protection, absorption.
11. Propels blood through the heart
12. Part of skeletal system: support, movement, production of blood cells.
13. The only liquid connective tissue. It transports substances and cells.
14. Lines tubules in kidneys.
15. Allows for elastic recoil of large arteries like the aorta and of alveoli during exhalation.
16. Thin for rapid diffusion of gases
17. Creates the mucociliary escalator that protects the respiratory system from microbes and debris.
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