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Organelles of Eukaryotic cells

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Presentation on theme: "Organelles of Eukaryotic 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 Flagella
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

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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