PROPERTIES AND FUNCTIONS OF THE CELL
CONTENT
- Cellular Respiration
- Excretion
- Growth
Cellular Respiration
Respiration is the enzymatic breakdown of organic food substances, like glucose, through a series of chemical reactions in the cell to release energy and produce carbon (iv) oxide and water as by-products. Respiration occurs in all living cells.
Now, the energy released during respiration is used by the organism for such activities as synthesis of proteins, lipids and protoplasm; germination; cell division and enlargement leading to growth; movement; transmission of nerve impulses; active transport and maintenance of body temperature. There is variation in the amount of energy used by different organisms depending on their activities. A very active organism like Tiger uses much more energy than a sluggish one, like Chameleon.
The reactions that occur in cellular or tissue respiration are usually represented by the following equation:
The equation represents only a summary of the raw materials and the end products of tissue respiration. The complex pathway of cellular respiration is shown below:
Tissue respiration is divided into two main parts.
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