1. Eukaryotic* Cell Structure
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Interactive Cell

2. Quick Review We talked about Cell Theory and two types of cells.
What are the 3 key points of the Cell Theory?
Which are the two important types of cells?
What is the main difference between these two cell types?

3. Eukaryotic
Examples
Plant Cells
Animal Cells
Membrane bound nucleus

4. Cytoplasm
Cytoplasm
Fluid part of the cell between the nucleus and cell membrane
Contains tiny structures called organelles

5. Cell Organelles Organelle Means “Little Organ”
Specialized structures that perform important functions within a cell.

6. Nucleus Nucleus Contains the cell’s DNA (also called Chromatin)
DNA codes instructions for making proteins and other molecules

7. Surrounded by a double lipid layer. Nuclear Envelope (Membrane)
Nuclear Envelope has pores/openings to allow material to move into and out of the nucleus

8. Nucleolus Small region within nucleus that produces ribosomes

9. Cell Membrane
The Cell Membrane regulates what enters and leaves the cell. Homeostasis
Provides protection and support
Made of a double-layered sheet called Lipid Bilayer (Lipids)

11. Mitochondria
Convert the chemical energy stored in food into energy. Cellular Respiration
The “power house” of the cell
Two Membranes
Outer Membrane
Inner Membrane

12. Mitochondrion Under a Microscope
Outer Membrane
Inner Membrane

13. Ribosomes
Synthesize (produce) proteins
Found throughout the cytoplasm

14. Endoplasmic Reticulum (ER)
Structure where lipids and proteins are assembled and transported from the cell
Two types of ER
Rough Endoplasmic Reticulum
Smooth Endoplasmic Reticulum

15. Rough Endoplasmic Reticulum (Rough ER)
Ribosomes are found on its surface
Synthesize proteins

16. Smooth Endoplasmic Reticulum (Smooth ER)
No ribosomes
Synthesis of membrane lipids

17. Golgi Apparatus
It modifies, sorts, and packages materials from the ER for storage or secretion outside the cell
It is found next to the ER

18. NUCLEUS
Rough ER
Golgi Apparatus
Smooth ER

19. Vacuoles
Vacuoles store materials such as water, salts, proteins, and carbohydrates
The control of water content within a cell is an example maintaining homeostasis

20. In plants: There is a single, large central vacuole
The pressure of the central vacuole makes it possible for plants to support heavy structures such as leaves and flowers

21. Lysosomes Filled with enzymes Digestion (breakdown) of
Lipids
Carbohydrates
Proteins
Organelles that are not useful anymore
Removes “junk” that a cell does not need

22. Cytoskeleton Proteins that help the cell to maintain its shape.
Involved in movement

23. Two main structures of cytoskeleton
Microfilaments
Microtubules

24. Microfilaments Threadlike structures made of a protein called Actin
Form a tough and flexible framework that supports the cell

25. Microtubules Hollow structures made up of proteins known as Tubulin
Help with cell division. They form a structure called Centrioles. **Not Found in Plant Cells

26. Structures for Movement
Cilia (single Cilium)
Short hair like structure covering the cell
Flagella (single Flagellum)
Longer wipe like (tail)
Cilia & Flagella Movement

27. Chloroplast*** Found in plant cells
Capture energy from the sunlight and convert it into chemical energy. Photosynthesis
Surrounded by two membranes

28. Cell Wall *** Found in Plants Lies outside the cell membrane
Provides support and protection for the cell
In plants, cell walls are made up of Cellulose (Carbohydrate)

30. Videos and Interactive Models
Interactive Cell Model