Cell+transport+Test+Study+Guide

DISCUSSION QUESTIONS

Obj. 1 - Cell Size why is it important for cells to be small? what is surface area to volume ratio? what is volume? what is surface area? What is the surface area to volume ration and how does it make the cell stay small? How do you calculate the surface area to volume ratio?
 * Objective #1a: I can explain why cells are microscopic.**

Obj. 2 - Plasma Membrane Structure what are the main parts of the plasma membrane? what is the function of cholesterol? what is the functions of proteins and carbohydrates? what are the two main things that make the plasma membrane selectively permeable?
 * Objective #2a:I can identify the parts of the plasma membrane from diagrams. **
 * Objective #2b: I can list the function of each part of the plasma membrane. **
 * Objective #2c: I can show how all of the parts of the plasma membrane work together to make it selectively permeable. **

Obj. 3 - Passive transport What is active transport and why do they do it? What is the connection between potential energy & homeostasis? How does sodium potassium pump work? What are the differences between all the types of active transport?
 * 3a: I can explain what passive transport is and why cells do it. **
 * 3b: I can list and describe examples of passive transport. **
 * 3c: I can predict what will happen to plant and animal cells when placed in the following solutions: hypotonic, hypertonic, and isotonic. **
 * 3d: I can write differences between the three examples of passive transport. **

Obj. 4 - Active Transport
 * 4a: I can explain what active transport is and why cells do it. **
 * 4b: I can list and describe examples of active transport. **
 * 4c: I can write differences between the three examples of active transport. **

__** 3 ways the cell is selectively pearmeable: **__ 1.transport proteins are specific to what they transport. 2.if the molecule can not fit through the trsnsport protein or through the phospholipids can not go throgh the cell membrane. 3. polar molecules cannot go through the phospholipids because the nonpolar tails don't like polar things