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The cell membrane in eukaryotic organisms and most prokaryotic organisms is a phospholipid bilayer. Hydrophobic tails face each other while hydrophilic heads face either direction (outside and inside the cell). This creates a nearly impassible wall keeping cellular material inside the cell and extracellular material outside the cell. The membrane also includes integral proteins which help with transmembrane transportation as well as cellular structure. Other sugars and fats such as cholesterol can be found within the membrane depending on the organism.
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∙ 16y ago
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∙ 15y agoChannels in the cell membrane are made of protein.
Cell membranes are made of lipids and proteins. Water and many solutes are insoluble in lipids and cross the cell membrane through water-filled protein channels which stretch across the membrane.
For more details see http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/D/Diffusion.html
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∙ 8y agoSimply stated: Proteins
Channels within the structure of the cell membrane are composed of proteins. A protein that forms an ion channel through a membrane is called a transmembrane protein.
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∙ 14y agoThey are carrier proteins.
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∙ 12y agoProtein.
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∙ 12y agoProteins
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∙ 13y agoProteins.
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∙ 12y agoprotein
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What are the channels in the cell membrane made of?
Most channels are made of specialized transmembrane proteins.
The cell membrane contains channels and pumps that help move materials from one side to another What are these channels and pumps made of?
There are many different protein channels that only allow one substance to go in or out of the cell. For example, there is a specific channel for gluclose,and no other substane can go through that channel
What are the special structures in the cell membrane that allow water and sugar pass through it made of?
These special structures are called protein gates or protein channels. Water is able to diffuse through the cell membrane since it is a small molecule. However, there are channels called aquaporins that allow water to enter the cell. A glucose molecule cannot just diffuse into a cell. There are glucose channels on the surface of the cell membrane that bind glucose molecules and allow them to enter the cell.
What cell structures are made primarily from phospholipids?
cell membrane
What are the special structures in the cell membrane that allow materials such as water and sugar through made of?
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
What are the channels and pumps of the cell membrane made up of?
They are proteinacious .
What are membrane channels and pumps made of?
Protiens
What is the cell membranes channels and pumps made of?
Proteins.
What are the channels in the cell membrane made of?
Most channels are made of specialized transmembrane proteins.
The cell membrane contains channels and pumps that help move materials from one side to another What are these channels and pumps made of?
There are many different protein channels that only allow one substance to go in or out of the cell. For example, there is a specific channel for gluclose,and no other substane can go through that channel
What cell membrane contains channels and pump help move materials from one side to the other what is it made of?
Proteins.
What is a cell membrain made up of?
An animal Cell membrane is made up of phospholipids (main bulk of membrane), Proteins, protein channels and Cholesterol. Protein parts main role is for structure and the protein channels allow active transport of molecules in or out of the cell. The Phospholipids however are semi permiable and so also allow some materials in and out of the cell too. Cholesterol is involved with the fluidity of the cell membrane. Hope this helps. :o)
What are the special structures in the cell membrane that allow water and sugar pass through it made of?
These special structures are called protein gates or protein channels. Water is able to diffuse through the cell membrane since it is a small molecule. However, there are channels called aquaporins that allow water to enter the cell. A glucose molecule cannot just diffuse into a cell. There are glucose channels on the surface of the cell membrane that bind glucose molecules and allow them to enter the cell.
What cell structures are made primarily from phospholipids?
cell membrane
What are the special structures in the cell membrane that allow materials such as water and sugar through made of?
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
What makes up the selectively premeable membrane that controls which molecules enter and leave the cell?
A cell's membrane is made up of a phospholipid bilayer which has several protein channels and various other transport mechanisms built in.
What are the special structures in the cell membrane that allow materials such as water and sugar to pass through made o?
membrane proteins act as carriers or channels for the specific movement of various substances in to and out of the cells.
