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fatty acids (APEX)
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What cell membrane does not mix with water?
fatty acids (APEX)
What part of the cell does not mix with water?
fatty acids
What is a cell membrane awnser at a 5th grade level?
A cell membrane is basically a double layer of lipids (fat molecules) with a bunch of proteins in it. Each fat molecule has two molecular "tails" that don't mix with water (just like oil doesn't) and one extremity that does. Because of this characteristic the part that does mix with water is facing outward (cells are immersed in water environments) or inward (cells are mostly water on the inside) and the double "tails" are sandwiched on the inside, there they don't come into contact with water, only with eachother and other molecules that don't mix well with water. There are basically two types of protein that are found in the membrane: - some that cross all the way through, called 'transmembrane'. These are able to do this because they, like the double layer of positionally opposite fat molecules, have one part that doesn't mix with water and two parts that do. Membrane pores for instance would be of this type. - Some that are on the periphery of the double layer, either on the outer part or inner part, called 'peripheral proteins'. These mix with water and consequently they also mix well enough with molecules that mix with water.
What Component of cell membrane that makes it impermeable to water?
The cell membrane is not impermeable to water but semi permeable which means it allowa only water to enter into the cell when the concentration of water molecules is higher in the fluid surrounding the cell than the fluid inside the cell.
What part of the cell membranes does not mix with water?
fatty acids
Why would the cell not work if there was no cell membrane?
Its "contents" would disperse into the surrounding medium. The cell membrane separates the "living contents" (where the biochemical reactions of life happen) from the surrounding "nonliving medium". When the two mix because the cell membrane is breached, the cell dies.
Describe what happens in osmosis?
In osmosis, water molecules move from an area of high water concentration to an area of low water concentration across a selectively permeable membrane, such as a cell membrane. This process helps to balance the concentration of solutes on both sides of the membrane.
How does a glass filled with oil and water show properties of a cell membrane?
the oil will float on the the water which wold illustrate the cell membrane because only certain materials can pass through it
How do i mix 50 part water to 1 part chemical?
Dissolve 1 part of this chemical in 50 parts water.
How much mix do you need for a ratio of 1 part mix to 23 parts water when you are using 16 ounces of water?
16/23 parts mix.
When making frozen fruit punch the frozen mix is the -----and the water is the ------of the solution?
frozen mix is the solute The water/ice is the solvent.
What prevents charged molecules from diffusing across the cell membrane?
This depends on the membrane. For example, the plasma membrane of a eukaryotic cell allows many ions to passively diffuse. However, the prevention of ions across a membrane indicates that the membrane in question is most likely non-polar, meaning that they are hydrophobic. Non-polar molecules do not like to mix with polar molecules like ions, therefore they repel one another and active diffusion must be used to transport ions across a non-polar membrane.
