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Organelles of Eukaryotic cells. Eukaryotic cells vs Prokaryotic cells.

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Presentation on theme: "Organelles of Eukaryotic cells. Eukaryotic cells vs Prokaryotic cells."— Presentation transcript:

1 Organelles of Eukaryotic cells

2 Eukaryotic cells vs Prokaryotic cells

3 Representative Animal Cell

4 Representative Plant Cell

5 Cell Walls Found in plants, fungi, & many protists. Also found in bacteria Surrounds plasma membrane

6 Cell Wall Differences Plants – mostly cellulose Fungi – contain chitin

7 Centrioles Pairs of microtubular structures Play a role in cell division

8 Chloroplasts Derived form photosynthetic bacteria Solar energy capturing organelle

9 Chromosomes Tightly packaged DNA that is coiled around histones Only condensed into chromosomes during cell division

10 Cilia & Flagella Provide motility Cilia  Short  Used to move substances outside human cells Flagella  Whip-like extensions  Found on sperm cells Basal bodies like centrioles

11 Cilia & Flagella Structure Bundles of microtubules With plasma membrane

12 Cytoplasm Viscous fluid containing organelles components of cytoplasm  Interconnected filaments & fibers  Fluid = cytosol  Organelles (not nucleus)  storage substances

13 Golgi Apparatus Involved in synthesis of plant cell wall Packaging & shipping station of cell

14 Golgi Apparatus Function 1. Molecules come in vesicles 2. Vesicles fuse with Golgi membrane 3. Molecules may be modified by Golgi 4. Molecules pinched-off in separate vesicle 5. Vesicle leaves Golgi apparatus 6. Vesicles may combine with plasma membrane to secrete contents

15 Lysosomes Contain digestive enzymes Functions  Aid in cell renewal  Break down old cell parts  Digests invaders

16 Cytoskeleton Filaments & fibers Found in both pro and eukaryotes Made of 3 fiber types  Microfilaments  Microtubules  Intermediate filaments 3 functions:  mechanical support  anchor organelles  help move substances

17 Microfilaments Made of protein called actin Force of movement in cells

18 Microtubules Made of tubulins Make up cilia and flagella Help with movement

19 Mitochondria Have their own DNA Bound by double membrane

20 Mitochondria Break down fuel molecules ( cellular respiration)  Glucose  Fatty acids Release energy  ATP

21 Nuclear Envelope Boundary surrounding the nucleus from the cytoplasm

22 Nucleolus Most cells have 2 or more Directs synthesis of RNA Forms ribosomes

23 Nucleus Control center of cell Double membrane Contains  Chromosomes  Nucleolus

24 Peroxisomes Like lysosomes but with different enzymes Contain digestive enzymes Functions –Aid in cell renewal –Break down old cell parts –Digests invaders

25 Plasma Membrane Contains cell contents Double layer of phospholipids & proteins

26 Ribosomes Site of protein synthesis One of the few things that both prokaryotic and eukaryotic cells have in common.

27 Rough Endoplasmic Reticulum Ribosomes attached to surface  Manufacture protiens  Not all ribosomes attached to rough ER May modify proteins from ribosomes

28 Smooth Endoplasmic Reticulum No attached ribosomes Has enzymes that help build molecules  Carbohydrates  Lipids

29 Vacuoles Membrane bound storage sacs More common in plants than animals Contents  Water  Food  wastes

30 Work on your coloring page and study!!! You have a quiz over this tomorrow!


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