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shape and transport room for things to enter and leave the cell
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∙ 11y ago
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The bilayer arrangement of molecules in a cell membrane give the cell a?
barrier
How do properties of lipids help explain the structure of the cell membrane?
Lipids do give cells membranes a flexible structure that forms a strong barrier between the cell and the cell surroundings. Hence, the lipid surrounds the structure which then forms the shape of the cell.
What is the significance of the phosphate group in a phospholipid?
I believe the phosphate give the phospholipid a polar region which allows it to interact with water (also polar). This is the basis for the formation of the lipid bilayer.
What is the function of the lipid bilayer in the cell membrane?
That is just another name for the cell membrane. It's main job is to keep the things that are on the inside of a cell inside, and keep what things are outside the cell on the outside. It is also called a semipermeable membrane because it can allow some things, under certain situations, to cross the phospholipid bilayer to enter or exit the cell.The phsopholipid bilayer is the thin polar cell membrane comprised of two layers of lipids. This membrane surrounds a cell to keep substances (ions, proteins, etc) in or out of the cell, but also allow selected substances to pass through the cell membrane as required.
How do the properties of lipids help explain the structure of the 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 important ability to phospholipid by-layers give to cell membranes?
They provide self-healing properties.
What does a cell wall found in animal and plant?
Um. animal cells don't have cell walls, only plant cells do. They both have cell membranes though, and a cytoplasm. Cell membranes are sort of like cell walls because they hold the cell together, but they give less protection. I'm not really sure if this is what you were asking but I hope this answered you question.
Can you give an example of a prokaryote having membranous organelles?
None. The only part of a prokaryote with a phospholipid bilayer is from the plasma membrane, which is often covered by a cell wall.
How does ethanol affect cell wall?
Methanol breaks down the structure of the beet membrane which in turn release the pigment, betcyanin, the pigment found in beet cell vacuoles that give beets their characteristic colour, and releases it. The more intense the colour you see, the greater damage that had been done on the membrane
Do cell membranes give animal cells there shapes?
No, the Cytoskeleton does. The Cytoskeleton also provides cellular stability and controls cell movement (Flagella, etc). The Cytoskeleton is connected in each cell to the next cell, through Gap and Tight junctions.
What is the cell membrane up of?
The cell membrane is primarily composed of phospholipids. These phospholipids arrange themselves in a bilayer, with hydrophilic (water-loving) heads facing outward and hydrophobic (water-fearing) tails facing inward. Additionally, the cell membrane contains proteins, cholesterol, and other molecules that give it structure and allow it to carry out various functions.
What are the three components of a cell membrane?
Lipids, proteins, and carbohydrates. Proteins are integral and transmembrane. The transmembrane protein span the entire membrane outside to inside and often act as transport proteins. The integral proteins do not span both ends of the membrane. The lipids (obviously) make up the lipid bilayer. The carbohydrates are short chains that attach to the other two organic molecules, when they attach to a protein they are known as 'glycoproteins' and when they are attached to lipids they are called 'glycolipids'. These carbohydrates play a key role in cell to cell recognition.In other words, Lipids, Proteins, and Carbohydrates make up the cell..
