diffusion
The channel in the nuclear membrane through which RNA passes is called the nuclear pore complex. It allows for the transport of RNA molecules between the nucleus and the cytoplasm.
The process is called filtration. It involves passing a mixture through a porous material, like filter paper or a filter membrane. The dissolved substances are trapped on the filter, while the solvent passes through.
Gas exchange occurs through the process of diffusion. Oxygen passes from areas of high concentration in the environment to lower concentration in the cell, while carbon dioxide passes from the cell to the environment. This is facilitated by the phospholipid bilayer of the cell membrane.
glucose (sugar) can diffuse through cell membranes
Osmosis
Refraction
cell membrane
The treatment is called filtration, where water passes through a porous substance like sand, charcoal, or a membrane to remove impurities and particles. This process helps to purify the water by physically trapping contaminants and producing cleaner water for consumption.
When water passes through a rock, it's called infiltration. This process involves water seeping into the ground and moving through the tiny spaces within the rock.
It's called osmosis. The water will travel across the membrane to equal out concentrations so they are both the same. This is because water is a small molecule, able to move through the membrane.Think of it this way. If there were no membrane then the dissolved substance would diffuse throughout the mixture. If you put a membrane there then the same idea works but this time it is only the water that can move. So the water moves through the membrane until the same concentration of water molecules appear on each side.
Glucose enters a cell through the process of facilitated diffusion, where it passes through membrane transport proteins called glucose transporters. These transporters help facilitate the movement of glucose across the cell membrane by following its concentration gradient.
The Mitochondria