Diffusion
By diffusing across the protein membrane.
I'm not really sure what your question is, but this is my answer anyways. Sugar or any other substances can go through the cell wall due to the process of osmosis which is diffusion through water. When there is a higher concentration of substance outside, there is more water inside the cell. To have the same amount of substance on both sides to get "equilibrium", water pushes out of the cell and sugar pushes in to replace the empty space...
An osmotic gradient would appear as a higher concentration of solute particles on one side and a lower concentration on the other side. You would observe solvent particles moving from the side of lower solute concentration to the side of higher solute concentration to balance out the concentrations. This movement of solvent particles is what drives osmosis.
It would be Active Transport.
To make 2 L of saturated sugar water with a concentration of 0.6 mol/L, you would need 1.2 moles of sugar in total. Since the concentration of the solution is the same as the concentration of sugar, you will need to dissolve 1.2 moles of sugar in 2 L of water.
Diffusion
You can measure sugar concentration with a photospectrometer by creating a calibration curve using known sugar concentrations. Then, you would measure the absorbance of a sample at a specific wavelength and use the calibration curve to determine the sugar concentration in the sample. This method relies on the relationship between absorbance and concentration established during calibration.
the grape would shrivel up. This is because the water in the grape would leave it to try to balance out the sugar concentration.
Glucose (sugar) enters the cell through facilitated diffusion, which is the movement of particles from an area of high concentration to an area with low concentration through a protein channel. This happens passively (on its own, with no extra energy required).It does not matter what other particles are in the cell--- the GLUCOSE will enter it so long as there is a higher concentration of GLUCOSE outside the cell than inside.The protein channel is needed because glucose molecules are too large to pass through the cell membrane by simple diffusion.
Osmosis is the net movement of water molecules across a semipermeable membrane from a region of a lower concentration to a higher concentration. Diffusion is the movement of particles from a region of higher concentration to a region of lower concentration down a concentration gradient
A high reading on a hydrometer typically indicates a higher concentration of solutes or particles in the liquid being measured, which can include sugar in a liquid such as syrup, honey, or wine. This higher concentration leads to a greater density of the liquid, causing the hydrometer to float higher than it would in pure water.
My guess would be that osmotic concentration of the sugar gets so great that the yeast is unable to get enough water for growth.