1. Wed/Thursday Block Grab the worksheets on the back lab table
Get out The Cell Organelle Cut out sheet & Cell Diagrams (Absent kids look in the absent bin)

2. Cell diagrams

3. Review Most missed questions on test
Strip report gets placed on page 27 or 28 in spiral
Most Missed Questions (pg 27 or 28)

4. 15 min to finish Microscope Lab Stations

5. Plasma (Cell) Membrane
Page 36: Titles Plasma Membrane Structures
Grab worksheet
Learning Goal: Be able to describe the structures and properties of a cell (plasma) membrane
Critical Questions: What term describes the plasma membranes ability to maintain homeostasis?

6. Structures of the Cell Membrane
Carbohydrate (chain)
Protein
Proteins
Carbohydrate (chain)
Phospholipid Bilayer
Protein
Proteins
Protein
Phospholipid Bilayer

7. Plasma Membrane Selective Permeability (Semi permeable)
Layer of a cell that separates the inside environment from the outside
Maintains homeostasis
By being semi permeable
Selective Permeability (Semi permeable)
Controls what molecules, ions, etc. enters the cell

8. There are two structures that help the cell membrane be semi permeable.
1. Two Phospholipid Layers
2. Protein Channels
Channels are variety of different shapes and sizes that certain molecules “fit” in
Allowing larger, polar molecules, and ions through
Hydrophilic head “attracted to water”
phosphate
lipid
Hydrophobic tail “repelled by water”

9. Answer your critical Questions
1. What term describes the plasma membranes ability to maintain homeostasis?

10. Cell Diagrams
Identify the
TYPE of cells!

11. Stop

12. Prokaryotic vs. Eukaryotic Venn Diagram
Draw a BIG venn diagram on page 35

13. Prokaryotes & Eukaryotic cells
Has nucleus & nuclear envelope
Highly Organized
smaller
Protists
Unicellular
Proteins
Has membrane bound Organelles
NO membrane bound organelles
Carbs
Lipids
Nucleic acids
Double strands of genetic material
animals
Ribosomes
Larger
Multicellular
plants
Single strands of genetic material
NO nucleus
Fungi
Achaea
Bacteria

14. Prokaryotic Eukaryotic 1. Nucleus & Nuclear envelope
4. No Nuclues & No Nuclear envelope
1. Nucleus & Nuclear envelope
8. Unicellular
2. Membrane bound organelles
5. & 6. Archaea & Bacteria
3. Double strands of genetic material
15. Protists
9. No Membrane bound organelles
7. Highly Organized
16. Proteins
17. Carbohydrates
18. Lipids
19. Nucleic Acids
14. smaller
10. animals
11. Larger
12. plants
13. fungi
21. Multicellular
20. Ribosomes
21. Single Strands of genetic material
21. Double Strands of genetic material

15. Directions: You are going to complete a series a 3 separate activities.
Once you have finished each activity, summarize and illustrate what you saw on your observation sheet.
At the bottom of the page, draw and label your own plasma membrane.
When finished tape or glue your observation sheet onto the left hand side of you membrane notes.

16. How to make the bubble holder
Take 4 straws and bend the crimped part
Place the short end into another straws crimped end and repeat until you have a square shape

17. Please DO NOT TOUCH Lab Equipment
Write the Critical question and the learning goal. Critical Question: How is a plasma membrane like a?

18. Hydrophilic head “attracted to water”
Hydrophobic tails “repelled by water”