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Biology / Biologie - 124

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Watter stelling met betrekking tot prokariotiese flagella en pili is verkeerd? / Which statement regarding prokaryotic flagella and pili is incorrect?

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Die stigter/s van die selteorie: alle lewende organismes bestaan uit selle, die basiese strukturele en organisatoriese eenhede van alle lewende organismes / The founder/s of cell theory: all living organisms are made up of cells, the basic structural and organizational units of all organisms.

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Watter een van die volgende stellings in verkeerd? / Which one of the following statements is incorrect?

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U ontvang ‘n monster vanaf ‘n misdaadtoneel. U identifiseer die volgende selstrukture m.b.v. lig- en eletronmikroskopie:  ‘n plasmamembraan, ‘n selwand en ribosome. Geen ware kern kan waargeneem word nie.  Watter seltipe dink jy is hierdie? / You receive a sample taken from a crime scene. You can identify the following cell structures using light and electron microscopy: a plasma membrane, a cell wall and ribosomes. No true nucleus can be observed. What type of cell would you say this is?

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Die Miller-Urey-eksperiment het getoon dat …. / The Miller-Urey experiment showed that ….

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Watter stelling met betrekking tot prokariotiese selle is verkeerd? / What statement about prokaryotic cells is incorrect?

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Pas die volgende stellings met betrekking tot die fokus van die ligmikroskoop /

Match the following statements regarding focusing of the light microscope.

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Wat is die funksie van die kondenser van 'n mikroskoop? / 

What is the function of the condenser of a microscope?

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Watter komponent van die mikroskoop sal u verstel om die intensiteit van die ligbron te aan te pas? /

Which component of a microscope will you adjust to change the intensity of the light source?

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Wat is die finale vergroting as die 40X objektieflens van die mikroskoop gebruik word? /

What is the final magnification if the 40X objective microscope lens is being used?

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