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What is the term that allows water molecules to pass freely but prevents the larger molecules from crossing?
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What allows some molecules to pass through freely while limiting passage of other molecules?
That is a semi-permeable membrane.
Where can phospholipids move and allow water?
freely and allow water and other hydrophylic molecules to pass through into or out of the cell.
What kinds of molecules freely diffuse across a semipermeable membrane?
Water molecules freely diffuse across a semipermeable membrane.
Which molecues cross the membrane of a cell easily and which do not?
Non-polar molecules (such as fatty acids, steroid hormones and O2) pass freely through the cell membrane. Small uncharged molecules (such as H2O) also pass freely, but are slower. Large, polar molecules and ions (such as Na+ and K+) do not pass freely. Macromolecules (such as proteins and polysaccharides) do not pass through the cell membrane. Molecules and ions that cannot pass freely through the cell membrane rely on other means, such as protein transporters, to move in to the cell.
What is the movement of molecules on liquid state?
they move past each other pretty much freely
Why do gases difuses but not solid?
The intermolecular forces holding gas molecules together are not very strong and thus the molecules are free to move around freely. This allows diffusion. The intermolecular forces holding molecules of a solid together are rather strong, and the molecules thus cannot move very freely. This prevents diffusion.
What allows some molecules to pass through freely while limiting passage of other molecules?
That is a semi-permeable membrane.
Where can phospholipids move and allow water?
freely and allow water and other hydrophylic molecules to pass through into or out of the cell.
What can you conclude about the advantage of the cell membrane having hydrophobic ends in the phospholipid bilayer?
Well it prevents polar molecules from passing through freely, giving the membrane its semi-permeable properties.
What kinds of molecules freely diffuse across a semipermeable membrane?
Water molecules freely diffuse across a semipermeable membrane.
A material that prevents electrons from flowing freely is called what?
an insulator
A nonsolid state of matter in which the atoms or molecules are free to move past each other as in a gas or liquid?
Matter only comes in three forms; solid, liquid and gas. There is no other form of matter that allows atoms or molecules to move about freely.
What type of material allows electrons to move freely?
Electrons move freely in a solid, as in a metal
Definition of freely permeable membrane?
freely permiable membrane allows everything to pass through.
What kind of bone in the hand allows it to slide freely over one another?
The carpel bones in the hand allows it to slide freely over one another.
What is the purpose of gap junctions?
A gap junction enables connections between two different animal cells. It allows ions and molecules to pass between the cells freely and helps the organism to continue to exist.
What is the purpose of a Gap junction?
A gap junction enables connections between two different animal cells. It allows ions and molecules to pass between the cells freely and helps the organism to continue to exist.
