How Cells Are Put Together. Chapter 4. The Cell. Smallest unit of life Can survive on its own or has potential to do so Is highly organized for metabolism Senses and responds to environment Has potential to reproduce. Structure of Cells. Two types: Prokaryotic Eukaryotic .By salena
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Prokaryotic Cell Structure. A. Generalized Structure 1. Cell Appendages A) Flagella 1) Functions in movement of the cell 2) 3 components. Prokaryotic Cell Structure. a) Filament i) Whip-like, helical structure b) Hook i) Holds the filament
Prokaryotic Cell Structure. (Fig. 3.23 – slide 23). Cytoplasmic membrane Cell _________ Cell _______ Cytoplasm _________ . Semipermeable barrier between inside and outside of cell Holds the cell shape Surrounds cell contents
Prokaryotic Gene Structure. Prokaryotic genes have a simple one-dimensional structure. 5’→. 5’→. ← 5’. ← 5’. ATG. AAA. ATG. GCA. GCA. TTG. CTA. TAG. . . . . Start codon. Stop codon. Note that the ATG codon encodes both start and methionine . Prokaryotic Gene Structure.
Prokaryotic and Eukaryotic Cellular Structure. Prokaryotic & Eukaryotic Cells: An Overview. Prokaryotes Do not have membrane surrounding their DNA lack a nucleus Lack various internal structures bound with phospholipid membranes Are small, ~1.0 µm in diameter Have a simple structure
LECTURE 3 :. Prokaryotic Cell Structure and Function. Microbiology and Virology; 3 Credit hours Atta- ur - Rahman School of Applied Biosciences (ASAB) National University of Sciences and Technology (NUST). COMPONENTS EXTERNAL TO THE CELL WALL. Capsules, Slime Layers, and S-Layers
LECTURE 2:. Prokaryotic Cell Structure and Function. Microbiology and Virology; 3 Credit hours Atta- ur - Rahman School of Applied Biosciences (ASAB) National University of Sciences and Technology (NUST). Bacterial Cell Wall.
Prokaryotic Cell Structure and Function. Size of Bacteria. Average bacteria 0.5 - 2.0 um in diam. RBC is 7.5 um in diam. Pulopiscium fishelsoni , bacillus (80µm in diameter and 200-600 µm long) Thiomargarita namibiensis , sperical (100-750 µm in diameter.). Shapes of Bacteria. Coccus
Prokaryotic and eukaryotic cell structure. Aidas Bertulis 2013, Šiauliai Jurgita Šerniūtė 2013, Kaunas. THE MAIN AIM: to learn about prokaryotic and eukaryotic cell structure. OBJECTIVES : To learn the features of prokaryotic cell. To learn the features of eukaryotic (animal) cell.
Structure of Prokaryotic & Eukaryotic Cells. Review of Prokaryotic & Eukaryotic Cells. Nucleus vs nucleoid DNA : circular vs linear, presence of histones Membranous organelles Cell wall-peptidoglycan Cell division: binary vs mitosis Ribosomes: 70S vs 80S Cytoskeleton. Shape. Cocci