1. Lesson 2: Cell Organelles
Unit 4: Microbiology
Lesson 2: Cell Organelles

2. Day 6: Bell Work What are the three parts of the cell theory?
What is the difference between a multicellular organism and a unicellular organism?
What are the 4 phases of mitosis? Describe each phase.
Reminder: Make sure your timelines and mitosis flip charts are turned in by the end of the day.

3. Day 6: Standards and Objectives
SC Standard
Objectives
7.L.3A.2: Analyze and interpret data from observations to describe different types of cells and classify cells as plant, animal, protist, or bacteria.
7.L.3A.3: Develop and use models to explain how the relevant structures within cells (including cytoplasm, cell membrane, cell wall, nucleus, mitochondria, chloroplasts, lysosomes, and vacuoles) function to support the life of plant, animal, and bacterial cells.
It is essential that students be able to analyze and interpret data to describe and classify a cell as plant, animal, bacteria, or protest
It is essential that students develop and use models to explain how various organelles within a cell function and relate their function to the cell’s overall survival.

4. Day 6 Agenda
Bell Work
Objectives
Notes on Cell Orgnelles

5. A Day in a Cell
If we could take a trip inside a cell and spend one day there, we would see all kinds of things. It would remind us of what a factory looks like. Let’s take a look:

6. Basic Cell Structure All cells have 3 things:
Cell membrane or plasma membrane
Controls what comes in and out of cell
DNA (the control center)
The genetic information of the cell
Cytoplasm/Cytosol
The jelly-like substance which fills the inside

9. TEM picture of a real cell membrane.
Cell Membranes
All cells have a cell membrane
Controls (regulates) what comes in and out of the cell to maintain an internal balance called homeostasis
Provides protection and support for the cell
TEM picture of a real cell membrane.

10. Organelles & Cell Parts
The cytoplasm contains specialized structures called organelles.
Organelles perform particular functions in order for the cell to work efficiently.
Nucleus
Ribosomes
Endoplasmic reticulum (rough & smooth)
Golgi Apparatus
Lysosomes
Vacuoles
Chloroplasts
Mitochondria
Vesicle
Centrioles
Cilia
Flagella

11. Nucleus and Nucleolus The nucleus contains the chromosomes.
Controls the cell’s genetic information.
The brain of the cell
The nucleolus is in the nucleus, a small dense region
The assembly of ribosomes begins here.

12. Ribosomes
Ribosomes are organelles in the cell on which proteins are assembled.
Made of Protein and RNA
Can be “free” or attached to endoplasmic reticulum
The manufacturing facility of the cell.

13. Endoplasmic Reticulum (ER)
Endoplasmic reticulum: (ER), the organelle in which part of the cell membrane is made.
Rough ER: ribosomes attached, the part that is involved in making proteins
Smooth ER: no ribosomes attached, contains enzymes that perform specialized tasks like the synthesis of lipids.

14. The packaging facility of the cell The look like stacks of pancakes
Golgi Apparatus
Golgi Apparatus: stack of membranes in the cell in which enzymes attach carbs and lipids to proteins
When proteins are produced by ER they are moved to the Golgi Apparatus where the proteins are sorted and packaged.
The packaging facility of the cell
The look like stacks of pancakes

15. Vesicles
Vesicles are small, membrane-bound proteins which transport materials, including proteins, around the cell.
They move along tracks.
They may fuse with the cell membrane.
They are the trains of the cell.

16. Lysosomes Lysosomes are small organelles filled with enzymes
Breaks down lipids, carbs, and proteins from food into useful particles.
Can remove debris from cells.
Trash truck of the cell

17. Mitochondria Mitochondria release energy from stored food molecules
Uses sugar from food to make energy
Contains its own DNA and can reproduce on its own.
Found in both plant and animal cells
Powerhouse of the cell

18. Assignment
In your guided notes there is an animal cell that you will need to label and color. It is due 11/14
I will come around and check while you are doing Bell Work on 11/14

19. Day 7: The Plant Cell

20. Bell Work Which organelle is the “powerhouse” of the cell?
Which organelle is the “dump truck” of the cell?
Which organelle is the “manufacturing facility” of the cell?

21. Day 6: Standards and Objectives
SC Standard
Objectives
7.L.3A.2: Analyze and interpret data from observations to describe different types of cells and classify cells as plant, animal, protist, or bacteria.
7.L.3A.3: Develop and use models to explain how the relevant structures within cells (including cytoplasm, cell membrane, cell wall, nucleus, mitochondria, chloroplasts, lysosomes, and vacuoles) function to support the life of plant, animal, and bacterial cells.
It is essential that students be able to analyze and interpret data to describe and classify a cell as plant, animal, bacteria, or protest
It is essential that students develop and use models to explain how various organelles within a cell function and relate their function to the cell’s overall survival.

22. Day 7 Agenda
Bell Work
Plant Cell Notes
Introduction to Cell Projects

23. Chloroplasts Chloroplasts are found in plants
use the energy from sunlight to make sugar
Contain chlorophyll
Contains its DNA and can reproduce on its own.
Helps to make plants green

24. Cell Wall
Cell wall lies outside the cell membrane and gives the cell support, protection, and strength.
Unlike the cell membrane, the cell wall is very rigid.

25. Vacuoles
Vacuoles are saclike structure that stores materials like water, salt, proteins, and carbohydrates.
Plants have a central vacuole filled with liquid to create pressure to make it possible to support heavy structures.
Smaller vacuoles are called vesicles, which are found in animal cells.