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Because it is a small molecule, water can diffuse through the cell membrane.

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12y ago

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What goes through the cell membrane?

Small non-polar molecules like oxygen and carbon dioxide, as well as small uncharged polar molecules like water, can diffuse through the cell membrane. Larger polar molecules and ions typically require protein channels or transporters to pass through the cell membrane.


Can polar molecules pass through the cell membrane?

Yes, polar molecules can pass through the cell membrane with the help of specific transport proteins.


What substances can easily pass through a cell membrane?

Small, non-polar molecules like oxygen, carbon dioxide, and water can easily pass through a cell membrane.


What kind of molecules can easily pass through a cell membrane?

Small, Non-polar molecules. If the molecule is polar, it sticks to both sides of the membrane, and has to go through selective routes. The easiest to get through is the Non-polar (oxygen and carbon).


Can polar molecules cross the cell membrane?

Yes, polar molecules can cross the cell membrane through facilitated diffusion or active transport.


What part of the cell membrane is polar and allows the cell to exits in water?

The cell membrane is made out of two layers , a nonpolar and polar part. The polar part is the hydrophilic part , meaning water loving , and the nonpolar is hydrophobic part - water hating. The polar/hydrophilic part is inside of the membrane and the outer portion is the hydrophobic/nonpolar . You don't want the cell to exist in water or be soluble in water because then we would dissolve , all our cells , tissues etc. That's why the cell membranes outer portion is nonpolar and is not miscible with water . The cell membrane allows water molecules to come in and out of the cell by osmosis , and that is when water molecules can free out and in of the cell through the cell membrane .


What characteristics of a water molecule causes its attraction to a cell membrane?

The polarity of water molecules, due to their unequal distribution of charge, allows them to form hydrogen bonds with the polar head groups of phospholipids in the cell membrane. This attraction helps water molecules adhere to the membrane and interact with the hydrophilic regions of phospholipids. Additionally, the small size of water molecules enables them to move freely through the cell membrane.


Can small polar molecules cross the cell membrane?

Yes, small polar molecules can cross the cell membrane through a process called passive diffusion.


What types of molecules can easily go through your cell membrane are permeable to the cell membrane?

Substances with a hydrophillic-lipophillic balance are permeable through the cell membrane.


Which part of the cell membrane is polar and allows the cell to exist in the water?

Phosphate groups


Which part the cell membrane is polar and allows the cell to exist in water?

Phosphate groups


How do polar molecules cross the cell membrane?

Polar molecules cross the cell membrane through a process called facilitated diffusion, where they move with the help of specific transport proteins embedded in the membrane. These proteins create channels or carriers that allow polar molecules to pass through the hydrophobic interior of the membrane.