1. The Cell: A Miniature City
10th Grade Biology

2. The Human Cell We will focus on the organelles in this lesson!
There are 2 types of cells
Prokaryote
Eukaryote (Human)
The human body contains trillions of cells!
Cells divide to make new cells or replace dead cells
Cells contain DNA (genetic material)
Cells contain organelles which carry out specialized functions
We will focus on the organelles in this lesson!

3. Cell City The human cell can be thought of like a city
Organelles represent various parts of the city
Each organelle must perform necessary functions to keep the cell working
Click the cell to check out a website!

4. Cell Membrane The cell membrane protects the cell’s interior
Membrane is semi-permeable
Controls which substances enter into and out of the cell
Analogy: Gatekeeper
Cell Membrane

5. Nucleus The nucleus is the command center of the cell
Contains the genetic material
Controls growth and reproduction
Analogy: Courthouse
Nucleus

6. Mitochondria The mitochondria is the powerhouse of the cell
The cite of cellular respiration
Produces energy in the form of ATP
Analogy: Power Plant
Mitochondria

7. Endoplasmic reticulum
The endoplasmic reticulum (ER) is like the roadway of the cell
Network of tubules and flattened sacs
2 types
Rough (contains ribosomes)
Smooth (no ribosomes)
Analogy: Highway system
Rough ER
Smooth ER

8. ribosomes The ribosomes is the packaging center of the cell
Composed of proteins and ATP
Responsible for protein synthesis
Located on the rough endoplasmic reticulum
Analogy: Packaging Factory

9. Golgi Apparatus
The Golgi Apparatus is the sorting, packaging and shipping center of the cell
Combines simple proteins to make more complex proteins
Packages proteins and lipids
Analogy: Post Office
Golgi Apparatus

10. Lysosomes Lysosomes serve as the recycling center of the cell
Contain enzymes to break down organic material
Originate inside the Golgi Apparatus
Analogy: Recycling Center
Lysosome

11. Which organelle is responsible for protein synthesis?
Let’s Review
Which organelle is responsible for protein synthesis?
Ribosomes
Mitochondria
Lysosomes

12. Click the picture to find out more about ribosomes!
CORRECT!
The ribosomes are the primary site of biological protein synthesis. They are located on the rough endoplasmic reticulum.
Click the picture to find out more about ribosomes!

13. Sorry, Incorrect! Please Try Again

14. Conclusion and Assignment
Cell parts/Organelles covered:
Cell Membrane
Nucleus
Mitochondria
Endoplasmic Reticulum
Ribosomes
Golgi Apparatus
Lysosomes
Assignment: With a partner, create a Power Point of the cell organelles using your own analogy. Include all parts we covered. See list of analogy ideas on next slide to get started!

15. Cell Analogy Ideas Soccer/football team House Farm School Airplane
Mall/store