1 biology preamble
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| 24 6. Biological drawings B. Cell Biology 1. Movement of substances into and out of cells Endocytosis and Exocytosis 2. Nucleic acids 3. DNA structure and replication, RNA transcription. 4. Protein synthesis ii) dorsal and ventral views iii) transverse and longitudinal section Examination of simple light, compound light and stereoscopic light microscopes and identification of the various parts. Handling and caring for microscopes. Use of the light microscope to observe prepared slides. Techniques involved in the preparation of temporary slides of animal and plant cells. Mounting varieties of specialized eukaryotic cells. Drawing of cells as seen under the microscope. Resolution and magnification of microscope. Determination of magnification of drawings. Measuring lengths using compound light microscope. Electron microscope should be mentioned Appropriate headings for biological drawings. Magnification size of biological drawings. Quality of biological drawings e.g. clarity of lines, neatness of labels, labels of biological drawings. Explanation of the process of endocytosis ( phagocytosis and pinocytosis) and exocytosis. Explanation of the term nucleic acid. Types of nucleic acids Deoxyribonucleic acid DNA) and ribonucleic acid (RNA. Basic chemical differences between DNA and RNA. Description of double helix model of DNA structure by Watson and Crick. Processes of DNA replication and RNA transcription. |