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Two-layer sandwich of molecules that surrounds an organella or cell is called a?
Wiki User
∙ 13y ago
Wiki User
∙ 13y agophospholipid bilayer ! :)
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What surrounds the cell and controls the movement of materials into and out of the cell?
Its the cell membrane (or plasma membrane), composed of phospholipid bilayer ,membrane proteins and cholesterol in eukaryotes. the regulation is largely by way of signalling molecules that interact with specefic receptors on the membrane (mostly proteins or glycoproteins). hope that helps Dr. David
What must happen to a tuna sandwich before a body cells can use it?
It must be consumed and digested.
Two models explain what is evolution?
Evolution is generally a very broad word, but in the context of science it takes on the meanings associated with biology and a scientific explanation of the origin of life. Two prominent theories for biological evolution on Earth are informally called the "soup theory" and the "sandwich theory." The soup theory hold that precursor molecules floating around in liquid (soup) were combined by an electrostatic discharge like that of lightning, combined into more complex organic forms. The sandwich theory posits that crystalline surfaces below the ocean provided a kind of framework to allow simple organic molecules to co-ordinate with inorganic planes long enough to then bind to each other and float away in a more complex state. While both these models are broadly admitted to be imperfect and far from a proof, they illustrate possibilities of the nature or models of evolution wherein something simple and inorganic may become something more complex and more organic.
What molecule orient themselves into sandwich like membranes because of hydrophobic components within the molecule?
Phospholipid
Why does a cell membrane need polar and non polar parts?
The cell membrane is mostly composed of phospholipid molecules. Each of these has a polar head and a non-polar tail part. The polar bits are attracted to water (hydrophilic) , and the non-polar parts repel water (hydrophobic). In the membrane, they form a double layer - like a sandwich - the polar heads stick out, and the tails form the middle, like the filling inside the sandwich. This way, the inner and the outer surfaces of the membrane are hydrophilic, being on "good terms" with the water in the outer environment and the water in the cytoplasm. At the same time, the membrane separates these two aqueous environments from each other - exactly because there is a non-polar middle layer, that does not allow polar substances to cross to the other side.
Which ocean surrounds South Georgia and the South Sandwich Islands?
The Atlantic Ocean Surrounds the South Georgia Islands.
What is the name of the phospholipid bilayer that surrounds the cell?
Lipid bilayer is composed of two layers of fat cells organized in two sheets. It is typically about five nanometers thick and surrounds all cells providing the cell membrane structure.
What is a sandwich bed?
a sandwich bed is a bedmade of sandwich
What is in a sandwich?
what ever you want to put on a sandwich is what is on a sandwich
How do you say toasted sandwich in french?
"un sandwich lacon-laitue-tomate"
How do you order a sandwich in french?
Sandwich in English = Sandwich in French
Which of these terms originated from a man who didnt want to leave his card game in order to get lunch?
Sandwich, from the Earl of Sandwich.
What is the Sandwich name starting from letter M?
meatball sandwich marshmallow and peanut butter sandwich mozzarella and tomato sandwich mushroom and Swiss steak sandwich misquite turkey and mayo sandwich marble rye, ham and Swiss cheese sandwich
What is a golfers favorite sandwich?
a golfer's favorite sandwich is a CLUB SANDWICH!
Is a sandwich a masculine or feminine noun in French?
In French, "sandwich" is a masculine noun. So you would use "un sandwich" for "a sandwich."
The biggest sandwich ever?
I am your sandwich
Is a kebab a sandwich?
No, a kebab is not a sandwich.
