Cells: Organelles, Membranes and Communication …
Cells: Organelles, Membranes and Communication Test Review Guide
Cell Organelles
• Know what each of the organelles covered in your class and book does and why the cell needs it - why would it have more than average number of them? What would happen if you got rid of them?
• Be able to recognize and explain where and how each of the organelles formed (endosymbiosis or invagination of the membrane) an any evidence that supports the theory
• Know the rules behind surface area to volume and how they affect cell size
• Know the difference between what you would find in a Eukaryotic and Prokaryotic cell ... and a Plant and Animal cell
• Understand each of the different types of cell junctions and where they would be found (and why).
• Know the difference between prokaryotic cell walls, DNA and ribosomes
Cell Membranes and Transport
• Know the structure of a cell membrane - what it looks like, where the proteins are, what regions are hydrophillic/hydrophobic
• From a given diagram be able to recognize what types of cell transport (passive, facilitative or active) are being illustrated
• Know what environments cells prefer and what can happen to them if put into a different tonicity
• Understand the differences in hypertonic, hypotonic and isotonic - where the free energy is higher and where the molecules are moving.
• Be able to describe the transport process and explain how the organization of cell membranes functions in the movement of specific molecules across membranes
• Be able to explain the significance of each type of transport to a specific cell (know examples for each and "why" the cell would use them)
Cell Communication
• Understand the basic forms of cell communication and how they work
• Know the basics about how each receptor works
• Understand what a signal transduction pathway is, why they are used and how they work
Math
• Be able to calculate water potential
• Be able to calculate surface are and volume
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