The light microscope mainly consists of eyepiece, body tube, arm, nosepiece, objective lenses, coarse-adjustment knob, fine-adjustment knob, diaphragm, light source and stage The ocular lens is the eyepiece located at the top of microscope where the specimen is viewed (Routh, 2003). The ocular lens that used in this experiment have magnifying power of 10X. The microscope used have a scanning power objective with 4X magnifying power. First specimen observed is slide of the letter ‘e’ is observed using this lowest power objective lens at first before moving to higher power. Then the objective lens switched to low power objective. This lens has the magnifying power of 10X and specimen were observed with little detail. Then, the high-power objective has the longest objective and highest magnifying power of 40X and specimen were observed with fine detail (Bisen & Sharma, 2012) While observing the images of specimen, coarse adjustment knob is used to bring an object into approximate focus. But this knob was used only when using low power objective. Meanwhile, when using high power objective, only fine adjustment knob is used to ensure that the image is clear and focused at the centre. The stage is raised and lower to bring focus toward the specimen (Bellwood & Andrasik-Catton, 2014). The specimen which is the letter “e” was observed and the images using the three lenses were drawn. As the power of the lens increase, the letter “e” was getting bigger and more detailed. After that, specimen observed was plant cell which were tracheid cell. The tracheid is the necessary cell in the xylem, namely, all plants have tracheids. Tracheids are typically spindle shaped, very elongate, and have tapered ends (Taylor e t al. , 2009). The images observed also produce a elongated and spindle structure.
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