Page 17 - Biology_F5

Biology for Advanced Level Secondary Schools

Pinocytotic vesicle forming Smooth endoplasmic reticulum Nucleus

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Micrivillus Pinocytotic vesicle Microtubule Lysosome Free ribosomes Two centrioles Nuclear envelops (two membranes) Nuclear pores Nucleolus Heterochromatin Euchromatin Cytoplasm Figure 1.5: A generalised structure of an animal cell as seen under electron microscope

Exocytosis of secretory product Secretory vesicle or secretory granule Golgi vesicles Golgi apparatus Mitochondrion Rough endoplasmic reticulum Cell surface membrane

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