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Transcript
Name: _______________________________________ Date: ____________ Class:___________________ Moving through the Membrane Color in the cell membrane according to the parts in the key. Ignore the lines to label things on the picture. Cell Membrane Part □ Cell interior □ Cell exterior □ Phospholipid (hydrophobic region) □ Phospholipid (hydrophilic region) □ Carbohydrates □ Protein Channel □ Receptor Protein □ Structural Protein Function This is the inside of the cell, where the cell’s cytoplasm is. Color this area or highlight the words. This is the outside of the cell. Color this area or highlight the words. This is the hydrophobic area of the phospholipid molecule. It is the two lipid “tails” This is the hydrophilic area of the phospholipid molecule. It is the “head” There are many carbohydrates attached to the membrane. Carbohydrates are made out of sugars (six-carbon ring shaped molecules). These usually serve as receptors that identify what kind of cell the cell is. These are proteins that allow big molecules to pass through the cell membrane. They have a passageway through them for letting molecules through and can use either active or passive transport to do this. These are the large proteins imbedded in the cell membrane that are involved with sending and receiving signals. They often have carbohydrate chains attached to them, but not always. These proteins give the cell shape and make it more sturdy. They also might help attach cells to each other. They are usually long and look like sticks or threads. M. R. Lawton 2017 Color in these pictures according to the parts in the key. Also, label the parts of the diagram as directed. Cell Membrane Part / Area □ Phospholipid bilayer □□□ Molecules moving (3 different ones) □ Transport protein (passive) □ Transport protein (active) Cell interior Cell exterior High concentration Low concentration Passive Transport Active Transport Function / Description These molecules make up the cell membrane in a bilayer (meaning that there are two layers of phospholipids) These are three different molecules that are moving through the cell membrane. This is the large protein in the middle of the cell membrane. This one allows diffusion to happen through it, passively. This is the other large protein in the middle of the cell membrane. This one pumps molecules against diffusion. This is the inside of the cell (on the right). Label it as “Cell Interior” This is the outside of the cell (on the left). Label it as “Cell Exterior” In the areas that have high concentrations of molecules, write “high concentration” In the areas that have low concentrations of molecules, write “low concentration” Of the three examples, write “passive transport” by the two that are passive transport. Of the three examples, write “active transport” by the one that is active transport. M. R. Lawton 2017 Color in the pictures according to the parts in the key. Also, label the parts of the diagram as directed. Cell Membrane Part / Area Function / Description □ Cell membrane □ Vesicle membrane □ Molecules being transported □ Cell interior □ Cell exterior □ Bacteria cell □ Lysosome This is the selective barrier that separates the inside and outside of the cell, and controls what enters and leaves. This is the outside of a vesicle. It is made out of phospholipids, just like the cell membrane. Endocytosis Label the picture that is endocytosis by writing “endocytosis” by it. Exocytosis Label the picture that is exocytosis by writing “exocytosis” by it. Phagocytosis Label the picture that is phagocytosis by writing “phagocytosis” by it. These are the particles that the cell is transporting. This is the inside of the cell. (in the pictures on the left-hand side, the inside of the cell is towards the bottom) This is the outside of the cell. (in the pictures on the left-hand side, the outside of the cell is towards the top) In the picture on the right-hand side, there is a bacteria cell, which gets eaten and digested. In the picture on the right-hand side, there are lysosomes in the cell that join up with the vesicle, to digest the bacteria inside. M. R. Lawton 2017 M. R. Lawton 2017