Bell Work Number your bellwork paper 1-11 and Label the parts of the cell. Use a textbook if you need help. ER Lysosome 11 10 Vacuole 1 Cytoplasm 9 Golgi Bodies/Apparatus 8 Nuclear Membrane 2 Nucleus 3 Ribosomes 7 4 Nucleolus Cell Membrane 6 What type of cell is this? Mitochondria 5

Biomolecule Chart Quiz & Test – Last Day Tomorrow Cell Quiz – Tomorrow Biomolecule Chart Quiz & Test – Last Day Tomorrow Notecard Definitions – Due Friday All Make-Up Quizzes due by Friday

Standard Essential Question Pg 32 B.4B – Investigate and Explain cellular processes and transport of molecules Essential Question How does the structure of the cell membrane allow it to regulate passage of materials?

Homework – Due Friday Page 30 (on the back of your page 29/vocab list) - Cell Analogy Create an analogy of the cell using a different model, very similar to page 27 HW. You must create a visual representation. You must use the following organelles – mitochondria, ribosomes, nucleus, nucleolous, ER, golgi bodies, cell membrane, and lysosomes Must be colored – at least 5. Must be labeled Create a story that explains each part and its function.

All cells are surrounded by a thin, flexible barrier known as a cell membrane.

The two main functions of the cell membrane are: 1) to regulate what enters and leaves the cell and 2) to provide protection and support.

The composition of cell membranes is a double-layered sheet called a lipid bilayer. DRAW THIS!

Let’s Build a Membrane

Proteins are embedded in the lipid bilayer of most cell membranes Proteins are embedded in the lipid bilayer of most cell membranes. Proteins form channels or pumps that help to move materials across the cell membrane.

Analogy time… A cell membrane is like a ___________ because _________________________. Protein pumps are like the _____________ in a ___________ because ________________.

Carbohydrates are attached to many proteins embedded on the outside of the bilayer. The carbohydrates allow individual cells to identify one another.

Because of the many types of molecules found in cell membranes many scientists refer to them as a fluid mosaic model.

Many cells also produce a strong supporting layer around the membrane known as a cell wall.

Plants, algae, fungi, and many prokaryotes have cell walls.

Cell walls are located outside of the cell membrane Cell walls are located outside of the cell membrane. The main function of the cell wall is to provide support and protection for the cell.

Analogy time (part 2)… Cell membranes are like _____________ while cell walls are like __________________ because ___________________________________ _____________.

The cell walls of plants are made of cellulose.

Buff Binder Quiz You have until the bell rings.