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BIOLOGY ETHRIDGE

Review for test 2

QuestionAnswer
Smooth ER an ER that lacks ribosomes its function includes lipid synthesis, carbohydrates metabolism, calcium concentration, drug detoxification and attachment of receptors on cell membrane proteins.
Rough ER the portion of the ER studded with Ribosomes that manufactures and transports proteins destined for membranes and secretion.
Phospholipid Bilayer A two-layer arrangement of phosphate and lipid molecules that form a cell membrane on the outer side of a cell.
What zip's through a cell membrane without a transport protein. Gas's and water
How does the Cell membrane act? Like a fluid, always in motion. moving lateral chanching places and moving vertically flip-flopping top to bottem
Cell membrane Protein Stuck in the phospholipid Bilayer, inside extracellular and cytoplamic layer of a cell membrane.
Extracellular layer is top outer layer of phospholipid bilayer
Cytoplasmic layer Is the bottom part the inner layer of the phospholipid bilayer
Cholesterol Provide stability and communication between cells in the cell membrane
The part of the protein that is hydrophilic The outsides
The part of the protein that is Hydrophobic The inside.
Microfilaments of Cytoskeleton make up cytoskeleton by attaching to proteins not lipids
the peripheral protein Stays inside of phospholipid bilayer and attaches to cytoskeleton
Integrial Protein passes through the lipid bilayer and allows waist to pass in and out of it. a transport protein
Glycolipid A Carbohydrate that attaches to a protein to provide energy and also serve as marks for cellular recognition this only happens on the extracellular layer
Diffusion movement of molecules from high concentration to low in an attempt to equalize.
example of diffusion Gases....
Active Transport requires energy(ATP) movement of substances from low concentration to high using (ATP) goes through a Transport Protein
Facilitated Protein Movement of molecules from high to low concentration with the use of Transport Proteins with no energy
Concentration Gradient the gradual difference in the concentration of solutes in a solution between two regions.
types of transport proteins 1)Diffusion 2)Active 3)Facilitated 4)Osmosis
Osmosis type of diffusion across the cell membrane. keeps a balance in and out of a cell
Iso equal
Tonic solute
hypo less than
Hyper more than
peroxisomes A cell organelle containing enzymes, such as catalase and oxidase, that catalyze the production and breakdown of hydrogen peroxide.
Created by: BIGE
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