High School

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Osmosis involves a semi-permeable membrane with small pores that allow the solvent to travel across the membrane; however, larger solute molecules are unable to do so. The solvent is typically water. Water is able to diffuse across the membrane as it travels from the side with a lower solute concentration to the side with the higher solute concentration in order to dilute the solute. The purpose of osmosis is to try and equalize the concentration of solute on both sides of the semi-permeable membrane.

Assume there is a semi-permeable membrane separating two compartments: the first compartment contains 3% glucose, and the second compartment contains 6% glucose.

Select the answer that indicates what molecules will move and the correct direction.

Answer :

Answer: solvent will move from the first compartment containing 3% glucose into the second compartment containing 6% glucose.

Explanation: osmosis is defined as the movement of solvent (example water molecules) from a region of lower concentrated solution into the region of more concentrated solution. The first compartment contains less glucose concentration with more solvent. Therefore, solvent will move from the first compartment with less glucose concentration into the second compartment containing 6% glucose concentration to achieve an equalised concentration of solute on both sides of the semi permeable membrane.

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Rewritten by : Barada

Final answer:

In osmosis, water molecules will move across a semipermeable membrane from the area with a lower concentration of solute (and thus a higher water concentration) to the area with a higher concentration of solute (lower water concentration).

Explanation:

The process of water diffusing through a semipermeable membrane from a region with a higher concentration of water to one with a lower concentration is known as osmosis. The concentration gradient of water across the membrane, which is inversely proportional to the solute concentration, governs the flow of water in this way.

In the scenario where a semipermeable membrane separates two compartments with 3% glucose and 6% glucose respectively, water molecules will move from the compartment with 3% glucose (higher water concentration) to the compartment with 6% glucose (lower water concentration) in order to equalize the solute concentration on both sides of the membrane.