University:
Bradley University
Course:
BIO 111 | Introduction to Cell Biology
Academic year:

2023
Views:

430

Pages:

4
Author:

rezancuk2j

Cytology Cell = is the smallest structural and functional unit of living tissues. Cell = Nucleus + Cytoplasm = How to see??? 2 Cytoloy 1 LM Magnification 1500 EM Magnification 1000---100,000 Black& white Routine stain= H&E • Hematoxylin • • • • BASIC & BLUE Stain acidic str BASOPHILIC NUCLEI & ribosomes DNA & RNA RNA • Eosin • • • • ACIDIC & RED Stain basic strucure ACIDOPHILIC CYTOPLASM -Except? 2 Cytoplasm = Inclusions = Organelles = Membranous CM MITO ER GA LYSOSO Matrix= Non Membranous -RIBOSOMES 5 Cytoloy 1- Cell Memb Definition: A very thin membrane surround cell as envelop 6 Histology department / Faculty of Medicine / Cairo University Cytology 3 LM EM • H&E: Can not be seen • Special stains: AG&PAS Tri lamellar = unit membrane= 3 layers: outer & inner dark layers+ 1 middle light layer =2 dense and one middle lucent Bulk FUNCTIONS OF CELL MEMBRANE Endocytosis ENTRY OF LARGE SUBSTANCE Exocytosis EXIT OF LARGE SUBSTANCE 3 types uptake of fluid uptake of solid uptake of protein hormones as GH receptor Coated pits Phagosome 8 P. vesicle Histology department / Faculty of Medicine / Cairo University Clathrin c. vesicle Cytology 4

Cytology 4 Pages

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