File Name: parts of the cell and its function .zip
What is a cell?
Cell , in biology , the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell is often a complete organism in itself, such as a bacterium or yeast. Other cells acquire specialized functions as they mature. These cells cooperate with other specialized cells and become the building blocks of large multicellular organisms, such as humans and other animals. Although cells are much larger than atoms , they are still very small.
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National 5 Biology. Search this site. Cell Structure. Producing New Cells. Genetic Engineering. Plant Transport Systems.
In this section the learners now expand their knowledge and learn the various cell structures and related functions. The roles of the organelles within the cells need to be introduced and relate structure and location of organelles to their function. Cells differ in size, shape and structure and therefore carry out specialised functions. Link this to tissues. The differences between plant and animal cells can be linked to Grade 9. The cell theory developed in by microbiologists Schleiden and Schwann describes the properties of cells.
organisms must accomplish the same functions: Magnification = the ratio of an object's image to its specific cell components/organelles for functional.
Different Cell Organelles and their Functions
Cells sometimes are quite long. Some are branched like the nerve cell or a neuron. Components of the cell are enclosed in a membrane which provides shape to the cells. Cell wall is an additional covering over the cell membrane to give shape and rigidity to plant cells. It gives shape to the cell.
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Organelles make up the subunits of a cell. There are numerous each with their own function. The plasma membrane is the organelle that encapsulates the contents of the cell.