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Functional and structural characteristics of cells. Dr. Manodeep Chakraborty. Cell is the basic structural and functional unit of life Types of cells Prokaryotic cells Eukaryotic cells. Diagram of Animal cells. Diagram of Plant cells. Difference between Animal and plant cell.
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Functional and structural characteristics of cells Dr. Manodeep Chakraborty
Cell is the basic structural and functional unit of life • Types of cells • Prokaryotic cells • Eukaryotic cells
Ultra structure of a typical Eukaryotic cell • Cell membrane
Ribosomes 70s:30s, 50s: 50s; 23s,5s, 34 pm, 30s; 16s, 21pm 80s:60s, 40s: 60s; 28s,5.8s, 40 pm, 40s; 18s, 30pm
Nucleus • Nuclear envelope • Nucleolus • Chromatin material • Nucleosomes
Structure of chromosomes • Centromere • Chromatids • Chromonema • Chromomeres • Secondary constriction • Telomere
Types of chromosomes • Metacentric • Submetacentric • Acrocentric • Telocentric
Haploid and diploid number of chromosomes • Karyotype
Cytockeleton • Microfilaments • Microtubules
Cell extensions • Cilia • Flagella