Osmosis videos

Go HERE for the Amoeba Sisters video on osmosis and water potential

Go HERE for the handout. Due Tuesday, Oct 1st.


Crash Course Video HERE

Cell Surface Area/Volume and Diffusion

Go HERE for the lab procedure.

Cell Transport Video + Handout

Go HERE for the video.

Go HERE to complete the handout.

Cell Organelles Quiz

Go HERE for your quiz on Cell Organelles

Username = firstnamelastname152
Password = Student ID#

Endosymbiosis videos

Which video better presents the concept of Endosymbiosis?

Video 1: "How Two Microbes Changed History"

Video 2: "Endosymbiosis"



Go HERE for the organelle quizlet study set. This will help you on the quiz tomorrow, but you should also have read sections 4.3 - 4.7 in the book and taken notes (pages 80-97)

Assignment for Friday, Sept 20

Work on the test corrections - they are due on Tuesday, Sept 24th.
Please follow the link at the right for instructions.

4.4 Endomembrane System

4.4: The Endomembrane System Regulates Protein Traffic and Performs Metabolic Functions in the Cell 

You Must Know: 

• How internal membranes and organelles contribute to cell functions.

Key Terms: Endomembrane system, Vesicles, Endoplasmic Reticulum, Smooth ER, Rough ER, Glycoproteins, Transport Vesicles, Golgi Apparatus, Lysosome, Phagocytosis, Food Vacuoles, Contractile Vacuoles, Central Vacuoles

Bellwork: Watch and take notes on "Compartmentalization" Bozeman video.

IN CLASS READING of Concepts 4.4: Pages 82-87

1. Define the Key Terms above.
2. Decide which type of ER is continuous with the nuclear membrane.
3. Explain what is meant by the phrase, "The Rough ER compartmentalizes the cell."
4. Determine which feature of the rough ER shows that it is involved in making proteins.
5. List several functions of Smooth ER.
6. State the main component of cell membranes that are made in smooth ER.
7. Explain why the cells in the testes and ovaries are rich in smooth ER.
8. Predict what happens to the amount to smooth ER in the liver cells of an alcoholic or chronic drug user.
9. Determine where proteins produced by the rough ER are destined to go.
10. State the destination for proteins produced by free ribosomes.
11. Summarize the function of the Golgi Apparatus.
12. Create an analogy for the function of Lysosomes.
13. Explain what hydrolytic enzymes are.
14. Predict whether or not lysosomal enzymes will function in the near-neutral pH of the cytosol.
15. Research the role of the lysosomes in Apoptosis (programmed cell death).
16. Find a good video of a contractile vacuole and explain why unicellular, freshwater cells must have one of these structures.
17. Explain how the beauty of a flower is related to vacuoles.
18. Research an example of a plant toxin being stored in vacuoles.
19. Explain the role of a large, central vacuole in a plant cell maintaining turgor pressure (you'll have to find out what turgor pressure is first!).
20. Create a visual summary of the endomembrane system that shows what happens to proteins as they are produced (see figure 4.15).

4.2: Eukaryotic Cells Have Internal Membranes That Compartmentalize Their Function & 4.3: The Eukaryotic Cell's Genetic Instructions Are Housed in the Nucleus and Carried Out by the Ribosomes

4.2: Eukaryotic Cells Have Internal Membranes That Compartmentalize Their Function & 4.3: The Eukaryotic Cell's Genetic Instructions Are Housed in the Nucleus and Carried Out by the Ribosomes 

You Must Know: 

• Three differences between prokaryotic and eukaryotic cells.
• The structure and function of organelles common to plant and animal cells.
• The structure and function of organelles found only in plant cells or only in animal cells.
• How different cell types show differences in subcellular components
• How cell size and shape affect the overall rate of nutrient intake and waste elimination

Key Terms: Plasma Membrane, Nucleus, Nuclear Envelope, Chromatin, Nucleolus, Ribosomes

Bellwork: Watch and take notes on "A Tour of the Cell?" Bozeman video.

IN CLASS READING of Concepts 4.2 - 4.3: Pages 75-82

1. Define the Key Terms above.
2. Create a 3 column table that identifies which of the following characteristics are found in Prokaryotic Cells and/or Eukaryotic Cells
• Plasma Membrane
• Ribosomes
• Membrane-bound organelles in cytosol
• Nucleus
• Size 1µm - 10µm
• Size 10µm - 100µm
3. Decide whether the following subcellular components belong to a plant OR an animal cell: Lysosomes, Chloroplasts, Central Vacuoles, Centrioles, Cell Wall, Flagella, Plasmodesmata
4. Explain why cells must be small using the concept of surface area to volume ratio.
5. Determine why the book says that MOST of a eukaryotic cell's DNA is located in the nucleus. 
6. Name 3 things that may exit the nucleus through pores.
7. Propose an argument for which one of those things is the most important for the cell.
8. State what ribosomes make for the cell. 
9. List the 2 parts of a ribosome.
10. Compare and contrast free ribosomes with bound ribosomes.
11. State the nucleic acid that is "read' by the ribosome during translation.
12. Explain how the fact that ribosomes are found in all forms of life on our planet supports the idea of common ancestry of all known life.

OTHER VIDEOS TO WATCH:

Crash Course Eukaryopolis