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What do you think its right answer of the question Molecules that are too large to be moved across a cell membrane can be removed from the cell by endocytosis or exocytosis?
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∙ 16y ago
endocytosis
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∙ 16y ago
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The cell takes in food and water and eliminates wastes through the what?
Hi! There are two process that do these jobs, and they both occur at the cell membrane. Endocytosis is the take in of materials such as food into the cell. There are two types of endocytosis: Phagocytosis and Pinocytosis. Phagocytosis makes the cytoplasm of the cell extend and "surround" the food and packages it into a vacuole. Pinocytosis sets up "traps" along the cell membrane to tract and collect food. Exocytosis is the excretion of waste products out of the cell. Here is how Prentice Hall Biology described it "The membrane of the vacuole surrounding the material fuses with the cell membrane, forcing the contents out of the cell." This is like a counter part of endocytosis, the process by which cells take in materials from outside the cell. Good Luck
Are lipid droplets membrane bound?
The membrane the surrounds the droplets 'in question' is made up from lipids. A single layer of lipid molecules surrounds a 'micelle', whereas a double lipid layer forms a membrane.
Why did detergent disrupt the bacterial cell membrane but not destry our skin cell?
I guess that is because bacterial membrane has different phospholipids, phospatidyl ethanolamine while we have phosphatidyl choline. I don't think all detergent can disrupt the bacterial membrane, but antibacterial soap.
What are three materials that move through a cell membrane?
Sodium, potassium and calcium are the three things that move through the plasma membrane. There are many other molecules and ions that do move through cell membrane. Plasma membrane have a selective permeable property.
What prevents charged molecules from diffusing across the cell membrane?
This depends on the membrane. For example, the plasma membrane of a eukaryotic cell allows many ions to passively diffuse. However, the prevention of ions across a membrane indicates that the membrane in question is most likely non-polar, meaning that they are hydrophobic. Non-polar molecules do not like to mix with polar molecules like ions, therefore they repel one another and active diffusion must be used to transport ions across a non-polar membrane.
The cell takes in food and water and eliminates wastes through the what?
Hi! There are two process that do these jobs, and they both occur at the cell membrane. Endocytosis is the take in of materials such as food into the cell. There are two types of endocytosis: Phagocytosis and Pinocytosis. Phagocytosis makes the cytoplasm of the cell extend and "surround" the food and packages it into a vacuole. Pinocytosis sets up "traps" along the cell membrane to tract and collect food. Exocytosis is the excretion of waste products out of the cell. Here is how Prentice Hall Biology described it "The membrane of the vacuole surrounding the material fuses with the cell membrane, forcing the contents out of the cell." This is like a counter part of endocytosis, the process by which cells take in materials from outside the cell. Good Luck
Are lipid droplets membrane bound?
The membrane the surrounds the droplets 'in question' is made up from lipids. A single layer of lipid molecules surrounds a 'micelle', whereas a double lipid layer forms a membrane.
Why does absorption of a membrane increase with temperature?
This is a very simple question with rather a complication set of answers. Movement of some molecules or substances across a membrane only increases between the temperatures of 1 to 37 degrees Celsius (in most organism/cellular systems). At temp. greater than 37 Celsius the membrane proteins involved in transport become denatured. One has to consider the main processes of movement of substances across a membrane i.e ranging from passive diffusion and osmosis and including active transport systems and end/exocytosis etc.
What is a diffused molecule from a semipermeable membrane?
What is the situation? Provided a concentration gradient and a molecule that passes through a membrane, diffusion will happen. Generally small and nonpolar molecules will pass through a membrane down a concentration gradient. That doesn't answer your question but it may be the answer your looking for.
Why did detergent disrupt the bacterial cell membrane but not destry our skin cell?
I guess that is because bacterial membrane has different phospholipids, phospatidyl ethanolamine while we have phosphatidyl choline. I don't think all detergent can disrupt the bacterial membrane, but antibacterial soap.
What are the 2 main parts of the cell membrane?
The cell membrane is formed by a double-layer of molecules known as phospholipids. It is therefore known as a phospholipid bilayer.
Where is cholesterol found in cell membrane?
The plasma membrane is present in all prokaryotic and eukaryotic cells. It is the semi-permeable membrane that encloses the cell. So to clearly answer your question, the plasma membrane is found on the outside of the cell; it encircles the cell.
What are three materials that move through a cell membrane?
Sodium, potassium and calcium are the three things that move through the plasma membrane. There are many other molecules and ions that do move through cell membrane. Plasma membrane have a selective permeable property.
What prevents charged molecules from diffusing across the cell membrane?
This depends on the membrane. For example, the plasma membrane of a eukaryotic cell allows many ions to passively diffuse. However, the prevention of ions across a membrane indicates that the membrane in question is most likely non-polar, meaning that they are hydrophobic. Non-polar molecules do not like to mix with polar molecules like ions, therefore they repel one another and active diffusion must be used to transport ions across a non-polar membrane.
What purpose does the membrane serve?
The membrane of a cell protects the inner part of a cell and allows the passage of substances in or out of cell.
How might the size of the membrane pore compare to the size of the starch molecules?
In other words this question asks if the pores are bigger or smaller than the iodine molecules. So.... the answer is that the iodine are smaller than the pores and the pores are bigger, because the iodine molecules need room to pass through, and the pores are not selectively permeable because they let the iodine through.
The molecules split by photolysis are what molecules?
Your question is very unclear. Photolysis of what?
