█ _ كاتب غير معروف 1993 حصريا كتاب ❞ lec11_12slid ❝ 2025 lec11_12slid: نبذه عن الكتاب: Proteoglycans (PGs) and glycosaminoglycans (GAGs) a) GLYCOSAMINOGLYCANS (GAGs) form gels i) polysaccharide chains of disaccharide units ii) too inflexible and highly charged to fold in a compact way iii) strongly hydrophilic iv) extended conformations gels v) osmotic swelling (charge repulsion) vi) usually make up less than 10% ECM by weight vii) fill most the space viii) four main groups a hyaluronan b chondroitin sulfate dermatin sulfate c heparin heparin d keratin sulfate Biology Books مجاناً PDF اونلاين Biologically Biology is natural science that concerned with study life, its various forms function, how these organisms interact each other surrounding environment The word biology Greek made two words: bio (βίος) meaning life And loggia ( λογία) means or Biology: similarity vegetation animal cover on edges African American states, existence same fossil Branches biology Biology an ancient thousands years old modern began nineteenth century This has multiple branches Among them are: Anatomy Botany Biochemia Biogeography Biofisia Cytology cell science Ecology environmental science Development Embryology embryology Genetics genetics Histology histology Anthropology anthropology Microbiology bacteriology Molecular Biology Physiology functions organs Taxonemia taxonomy Virology virology Zoology zoology