1. Entrance Assessment With the materials located in front of you....
Create a diagram of the cell membrane
Be able to label/point to the main components of the cell membrane
Label the hydrophilic and hydrophobic molecule components
Answer the question on your paper:
What is the function of the cell membrane?

2. Lesson Objectives 10/18
Be able to identify mitochondria, chloroplasts and the ribosomes in a cell.
Be able to describe the above organelle’s functions.
Human Bone Cells

3. Mitochondria Powerhouse of the cell, providing most of its ATP supply
ATP: molecule that most cells use as energy
Contain their own RNA and DNA and are able to reproduce themselves
Endosymbiosis theory
Cells contain multiple mitochondria

4. Mitochondria Two membranes: Inner Outer
Contains long folds known as cristae
Increase surface area for greater space for chemical reactions to occur
Outer

5. Chloroplasts Much like mitochondria:
Contain DNA
Surrounded by 2 membranes
Convert energy from the sunlight into chemical energy
Photosynthesis
Contain large amounts of green pigment: Chlorophyll

6. Ribosomes Site of protein synthesis Synthesis=creation
Translates the genetic information from RNA into proteins
Each is composed of two subunits
one large and one small
Ribosomes come in two forms:
Free floating
Attached to the rough endoplasmic reticulum (more to come)

7. So in review
Can you…..
Identify mitochondria, chloroplasts and the ribosomes in a cell.
Describe the above organelle’s functions.

8. Lesson Objectives 10/19
Be able to identify the endoplasmic reticulum and golgi apparatus in a cell.
Be able to describe the above organelle’s functions.

9. Endoplasmic Reticulum
Found around the nucleus
Also known as “ER”
Smooth
No ribosomes
Rough
Contain ribosome
Function:
Transport, "intracellular highway".
Ribosomes are positioned along the rough ER, protein made by the ribosomes enter the ER for transport.

10. Golgi Apparatus May be called Golgi complex or Golgi body
Flattened stacks of membranes
Works close with the ER
Processes, packages and secretes proteins.
Like a factory

11. Unprocessed proteins enter the Golgi apparatus from ER
Proteins are packaged and exported near membrane

12. Organelles that Store, Clean Up and Support
Lesson Objectives:
Recognize and describe the functions of the vacuoles, lysosomes and the cytoskeleton.

13. Vacuoles Large, saclike, membrane-enclosed structures
Function is to store materials like water, salts, proteins, and carbohydrates.

14. Lysosomes Small organelles filled with enzymes
Break down lipids, carbohydrates, and proteins into small molecules that the cell can use.
Break down organelles that have outlived their usefulness.
Remove “junk”

15. Cytoplasm Jell-o like substance: Cytosol
The area between the cell membrane and the nucleus
Contains structures in the cell
Organelles
Cytoskeleton
The framework of the cell
Contains microtubules and microfilaments
Aid in movement and support the cell

16. Microtubules Centrioles: Cilia and Flagella: A type of microtubule
Located near the nucleus and help organize cell division.
Centrioles are not found in plant cells
Cilia and Flagella:
Projections from the cell surface
Enable cells to swim through liquid