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Channels within the structure of the cell membrane are composed of....?
Wiki User
∙ 7y ago
Simply 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.
Ramon Anderson
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The resistance to an ion's movement across a membrane is determined by?
ion channels within the membrane
What is the cell membrane channels and pumps made up of?
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.
What is a membrane-bound structure within a cell which carries out a particular function?
an organelle
The structure within the cochlea containing hair cells that vibrate at different natural frequencies is the?
basilar membrane
This is any functional structure within the confines of a cell literally a small organ it usually has a membrane-based structure?
Organelle
What is the definition of nucleolous?
The nucleolus is a non-membrane bound structure composed of proteins and nucleic acids found within the nucleus.
The resistance to an ion's movement across a membrane is determined by?
ion channels within the membrane
What is a Biological Membrane?
A biological membrane or biomembrane is an enclosing that acts as a barrier within or around a cell. It is, almost always, a lipid bilayer, composed of a double layer of lipid-class molecules, specifically phospholipids, with occasional proteins intertwined, some of which function as channels chris mama
What is the function nucleolus?
The nucleolus is a non-membrane bound structure composed of proteins and nucleic acids found within the nucleus. The function of the nucleolus is to transcribe and assemble ribosomal RNA.
What is the cell membrane channels and pumps made up of?
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.
How do properties of lipid help explain the structure of a cell membrane?
Lipids have hydrophilic (water loving) heads, and hydrophobic (tails). Therefore, the tails face one another while the heads face out to the water. And if particles must pass through the cellular membrane that are hydrophilic they must go through protein channels within the cell membrane.
What chloroplast structure are chlorophyll molecules found?
The chlorophyll pigment is located within the thylakoid membrane and the space between the thylakoid and the chloroplast membrane.
What is faciillitated diffusion?
Facilitated diffusion is diffusion that occurs not through the cell membrane directly but through protein channels within the cell membrane. They are often, although not always, substrate specific.
What is a membrane-bound structure within a cell which carries out a particular function?
an organelle
What part of cell controls movement of molecules in and out of cell?
The cell membrane controls what enters and leaves the cell. There are protein channels within the lipid bilayer (membrane) of the cell. There are carbohydrate chains that hang off of the protein channels that identify each particle around the cell to make sure its what the cell needs, if not it wont let it in.
Structure of a mitochondria?
A mitochondrion contains outer and inner membranes composed of phospholipid bilayers and proteins. The two membranes, however, have different properties. Because of this double-membraned organization, there are five distinct compartments within the mitochondrion. There is the outer mitochondrial membrane, the intermembrane space (the space between the outer and inner membranes), the inner mitochondrial membrane, the cristae space (formed by infoldings of the inner membrane), and the matrix (space within the inner membrane).
What is a Membrane organelles?
A membrane bound organelle is a membrane bound structure that performs a very specific function within the cell. For example - nucleus, mitochondria, endoplasmic reticulum, golgi apparatus.
