2007-04-01 21:26:56 · 10 answers · asked by raju k 1 in Science & Mathematics ➔ Biology
alveoli is the structural and functional unit of a lung.. this is the point where exchange of gases takes place
2007-04-02 02:15:21 · answer #1 · answered by Anonymous · 0⤊ 0⤋
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The cell is the basic structural and functional unit of all known living organisms. It is the smallest unit of life that is classified as a living thing, and is often called the building block of life. Tissue is a cellular organizational level intermediate between cells and a complete organism. Hence, a tissue is an ensemble of cells, not necessarily identical, but from the same origin, that together carry out a specific function. Organs are then formed by the functional grouping together of multiple tissues. The main tissue is the one that is unique for the specific organ. For example, main tissue in the heart is the myocardium, while sporadic are the nerves, blood, connective etc.. Functionally related organs often cooperate to form whole organ systems. Organs exist in all higher biological organisms, in particular they are not restricted to animals, but can also be identified in plants. In single-cell organisms like bacteria, the functional analogues of organs are called organelles. A Biological system (or Organ system) is a group of organs that work together to perform a certain task. Common systems, such as those present in mammals and other animals, seen in human anatomy, are those such as the circulatory system, the respiratory system, the nervous system, etc. A group of systems composes an organism, e.g. the human body.
2016-04-10 09:29:33 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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what is the structural and functional unit of respiratory system?
2015-08-15 06:33:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋
alveoli is the functional unit of lungs but the structural unit of lungs is acinus
2016-02-26 21:07:58 · answer #4 · answered by rajiv 1 · 0⤊ 0⤋
Cells are the basic structural units of any multicellular organism. A group of one type of cells together form tissue. Group of tissues (of different types) together in one organized structure that serves purposes are organs. A group of organs that serve similar functions make up a system. So: Cells make up Tissues, Tissues make up Organs, Organs make up Systems.
2016-03-17 21:57:16 · answer #5 · answered by Samantha 4 · 0⤊ 0⤋
The alveoli in the lung.
2007-04-01 21:32:52 · answer #6 · answered by Labsci 7 · 0⤊ 0⤋
alveoli
2007-04-01 22:03:26 · answer #7 · answered by peace 2 · 0⤊ 0⤋
alveoli
2007-04-01 21:31:44 · answer #8 · answered by purnendu s 1 · 0⤊ 1⤋
Atp and mitochondria
2007-04-01 21:30:56 · answer #9 · answered by ebiyedinak 3 · 0⤊ 1⤋
alveolus of lungs anyway
2007-04-01 21:36:19 · answer #10 · answered by calmserene 4 · 0⤊ 0⤋