University:
University of Virginia
Course:
NUCO 2330 | Health Assessment
Academic year:

2024
Views:

258

Pages:

1
Author:

basteishx23y

Cell Defense-The Plasma Membrane Without__cells of living things will die because they are unable to maintain__. The Plasma Membrane__Homeostasis Phospholipids-Have a __head and 2_ _ Tails. Phosphate, fatty acid the heads are_ which means_. Hydrophilic, they like to be close to water. the tails are_which means_. Hydrophobic,they avoid water. the heads face out towards the_and the tails facing_. water, each other What do you have to put into the membrane in order to stabilize it? cholesterol semi-permeable what is another word for selectively premeable?What does this mean. The membrane allows some substances to pass through easily, but does not allow others to pass. CO2 and Oxygen what two molecules easily pass thorugh the membrane, why? Both are Non-polar and Small Nonpolar molecule does not have signifigantly charged ends. small small molecules pass thorugh the membrane most easily. Sugar-large and polar molcules such as sugars do not pass through the bilayer. what 3 molcules cannot easily pass throught the membrane?why? Ion+ and ION- = charged substances like IONS do not pass throug h the phospholipid bilayer. Polar molcule has partial changes. this is because electrons are not shared equally between atoms in the molecule, making some atoms a little bit negative and a little bit positive. you can only transport substances using channel proteins until there were- equal amounts of it on both sides of the membrane. Diffusion-equal substances on both sides define diffusion Active Transport moving from LOW to HIGH concentration requires the use of energy to pump substances. Using: energy(ATP) Carrier Proteins cells that have different membrane carbohydrates do differnet__.the imune system uses the carbohydrates to __ that your cell belongs to you and are not __,__ or other foreign cells. jobs,reconize,viruses,bacteria protects the body from disease immune system function kills, and attacks invaders what kind of cell does this the TCell diffusion of water across a selectively permeable membrane What is osmosis? movement of water in and out of the cell. what is the name of the cell that lets water pass through? active or passive transport? Does passive or active transport require energy? aquaporins passive transport active transport 1/1

Exploring the Plasma Membrane

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