EFB325 Study Guide - Peripheral Membrane Protein, Integral Membrane Protein, Beta Barrel

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22anoor

29 Mar 2023

School

SUNY College of Environmental Science and Forestry

Department

Environmental and Forest Biology

Course

EFB325

Professor

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Document Summary

Lipid bilayer: thin juxtaposed phosolipid molecules that form the cell membrane. Fatty acid: molecule that has a carboxylic acid attached to long hydrocarbon chain. Phospholipid: lipid molecule in cell membranes composed of two fatty acids connected to a polar group. Phosphatidylcholine: common phospholipid in abundance present in most cell membranes. Sterol: subgroup of steroids that have a hydroxyl on the 3rd position of the a ring, amphipathic. Saturated: hydrocarbon tail with no double bonds and full complement of hydrogen atoms. Flippase: flip specific phospholipid from bilayer that faces the exterior to monolayer that face the cytosol. Scramblase: transporter protein that removes randomly selected phospholipids from one layer and insert to another. Integral membrane protein: proteins that are permamnently embedded to the lipid bilayer and removed only by disrupting the bilayer with detergents. Peripheral membrane protein: temporarily attached located in the inside and outside of membrane.

Related Questions

What is the relationship of:

- glycerol and phospholipids

- heads and tail cartoon and membrane phospholipids

- condensation reactions and synthesis of membrane phospholipids

- membrane fluidity and cell function

- length of fatty acid chains in phospholipids and membrane fluidity

- saturation of fatty acid chains in phospholipids and membrane fluidity

- amphipathic nature of cholesterol and its ability to interact with membrane phospholipids

- lipid rafts and membrane fluidity

- ether linkages in phospholipids and response to acidic conditions

- ester linkages in phospholipids and response to acidic conditions

- strong detergent such as SDS and membrane proteins

- weak detergent such as Triton X-100 and membrane proteins

- detergents and their effect on lipid bilayers

ivoryrabbit483

What roles do membranes play in a cell?

What are cell membranes composed of?

What is a lipid? What are some examples of lipids? What does amphipathic mean?

What are the structure properties of triacylglycerols and steroids?

What are the structural properties of phospholipid and detergents? What arrangements do phospholipids, detergents, and a combination of phospholipids and detergents tend to take in solution?

What type of movements phospholipids undergo in a membrane? What type of movements do they not do?

What determines membrane fluidity?

Where are membranes formed in the cell? How is membrane asymmetry created and maintained? What are flippases and scramblases? Where do they function?

What is the spatial arrangement of a membrane during transport?

What are the different classifications of membrane proteins and what secondary structures are commonly found in transmembrane proteins?

What is the cell cortex?

What are membrane domains? What are different ways of establishing them?

What is FRAP? How does it work?

What is the carbohydrate layer? What are its functions? What is a lectin?

Phospholipids have the property of detergency. This is due primarily to Question 9 options: A. polar head groups. B. a hydrocarbon tail. C. an amphipathic nature. D. solubility

EFB325 Study Guide - Peripheral Membrane Protein, Integral Membrane Protein, Beta Barrel

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