lecture unit one - membrane physiology
Help!
|
|
||||
|---|---|---|---|---|---|
| a model of the general structure of the plasma membrane consists of a phospholipid bilayer embedded with proteins | fluid mosaic model
🗑
|
||||
| plasma membrane is about 50% ___ and 50% ___ | protein and lipid
🗑
|
||||
| having both polar and non polar parts are called | amphipathic
🗑
|
||||
| many proteins and lipids are | amphipathic
🗑
|
||||
| phospholipids of the membrane lipids form a bilayer (a head that is__ and tails that are ___) | head is hydrophilic and tails are hydrophobic
🗑
|
||||
| ___ is a stabilizing component of the lipid membrane | cholesterol
🗑
|
||||
| isolation of cellular contents and a source of local chemical mediatiors is a function of | membrane lipids
🗑
|
||||
| structure of the membrane proteins most are __ some are __ shaped | globular and alpha helical
🗑
|
||||
| membrane proteins location: 70% are __ and 30% are ___ | integral (intrinsic) and peripheral (extrinsic)
🗑
|
||||
| membrane transport, cellula communication and enqumatic control are functions of | the membrane proteins
🗑
|
||||
| a fuction of membrane proteins that acts as receptors for regulatory molecules is called | cellular communication
🗑
|
||||
| cellular recognition of membrane proteins is a function of | cellular communication
🗑
|
||||
| the plasma membrane is ___ permeable or ____-permeable | selectively permeable or semi-permeable
🗑
|
||||
| what is permitted by the plasma membrane | small lipid soluble molecules
🗑
|
||||
| what 3 things are not permitted through the plasma membrane | polar molecules, inorganic molecules (lipid insoluble) and charged atoms/molecules
🗑
|
||||
| water filled pores that extend across the membrane allowing the passive movement of solute across the membrace | channel proteins
🗑
|
||||
| __ allow movement of ions or small polar molecules via simple diffusion | no regulated channels (pores)
🗑
|
||||
| ___ regulate the movement of ions or small polar molecules (movement via simple diffusion) | regulated channels (gates)
🗑
|
||||
| 2 types of regulated channels are | chemical regulated and voltage regulated channels
🗑
|
||||
| bind specific solutes on one side of the membrane and transfer them to the other | carrier proteins
🗑
|
||||
| unstable and change shape, and made up of at least 2 molecules are characteristics of | carrier proteins
🗑
|
||||
| binding may trigger a conformational change that allows exposure of bound substance to cell's interior are | carrier proteins
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
JohnPink