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PowerLecture: Chapter 4

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Presentation on theme: "PowerLecture: Chapter 4"— Presentation transcript:

1 PowerLecture: Chapter 4
Cell Structure and Function

2 Early Discoveries Know the contributions of…
__________________________

3 Structure of Cells All start out with: Two types: ________________

4 Prokaryotic and Eukaryotic Cells
cytoplasm DNA plasma membrane Fig. 4-3a, p.52

5 Prokaryotic and Eukaryotic Cells
DNA in nucleus cytoplasm plasma membrane Fig. 4-3b, p.52

6 Prokaryotic and Eukaryotic Cells
DNA in nucleus cytoplasm plasma membrane Fig. 4-3c, p.52

7 Why Are Cells So Small? _________________________________
_________________________________ _________________________________

8 Cell Theory _________________________________

9 Cell types _______________________________
________________________________

10 Plasma membrane - Fluid Mosaic Model
_________________________________ _____________________ _________________________________ _________________________________

11 Protein pump across bilayer Protein channel across bilayer
Plasma Membrane Recognition protein Receptor protein extracellular environment lipid bilayer cytoplasm Protein pump across bilayer Protein channel across bilayer Protein pump Fig. 4-5a, p.53

12 Know the structure and function of the…
_____________________

13 Nuclear Envelope ____________________________________
one of two lipid bilayers (facing nucleoplasm) nuclear pore (protein complex that spans both lipid bilayers) one of two lipid bilayers (facing nucleoplasm) NUCLEAR ENVELOPE

14 Nucleolus __________________________________
__________________________________ __________________________________

15 Endomembrane System includes…
__________________________________

16 Endomembrane System __________________________________ __________________________________

17 Know the structure and function of the…
__________________________________

18 Smooth ER ________________________________________
____________________________________________________________

19 Vesicles ______________________________________________________________ _____________________________________________________________________________________________

20 Like Bacteria? ____________________________________________________________________ __________________________________

21 Plant Cell Walls Secondary cell wall (3 layers) Primary cell wall

22 Matrixes between Animal Cells
______________________________________________________________

23 Cell Junctions Plants ____________________ Animals plasmodesma

24 Animal Cell Junctions free surface of epithelial tissue
examples of proteins adhering junction gap junctions basement membrane Fig. 4-23, p.67

25 Signal Transduction ______________________________ ______________________________ ______________________________ signal transduction cellular response signal reception

26 Cytoskeletal Elements
microtubule microfilament intermediate filament

27 Microtubules and Microfilaments
______________________________________ ______________________________________ ______________________________________

28 Intermediate Filaments
________________________________

29 Mechanisms of Movement
______________________________________________ _____________________________________________________________________ ____________________________________________________________________________________________

30 Flagella and Cilia _____________________________

31 spokes, rings of connective system
central sheath one central pair of microtubules spokes, rings of connective system plasma membrane one of nine pairs of microtubules with dynein arms down their length plasma membrane microtubules near base of flagellum or cilium basal body (embedded in the cytoplasm) Fig. 4-29b,c, p.71

32 False Feet ________________________________ ________________________________ ________________________________ ________________________________ ________________________________

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