Question

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1. osmosis is the net flow of water from one side of a (click to select) permeable membrane to the other.
2. the normal movement of water across this membrane is from high to low (click to select) concentration.
3. a high concentration of water has (click to select) dissolved particles than a low water concentration.
4. during osmosis, water will move (click to select) its own concentration gradient until equilibrium has been reached.

Explanation:

Question 1

Osmosis involves a selectively permeable membrane (allows water and some solutes to pass, not all freely permeable). So the correct term is "selectively" permeable.

In osmosis, water moves from an area of high water concentration (low solute) to low water concentration (high solute), which corresponds to low to high solute concentration. So water moves from high to low water concentration (or low to high solute, but the question's blank is about the concentration type for water movement direction; the normal movement is from high water (low solute) to low water (high solute) concentration, so the concentration here for water is "water" (implied, but the blank is to fill the type: the movement is from high to low water concentration? Wait, no—wait, the question says "from high to low (blank) concentration". Wait, no, osmosis: water moves from high water potential (high water concentration, low solute) to low water potential (low water concentration, high solute). So the concentration of water: high water concentration to low water concentration. But the blank is the type of concentration. Wait, maybe the options are "solute" or "water"? Wait, the normal movement of water across the membrane is from high to low water concentration (since water is the solvent). Wait, no—let's rephrase. The concentration of water: a solution with more water (less solute) has high water concentration. So water moves from high water concentration (low solute) to low water concentration (high solute). So the blank is "water"? Wait, no, maybe the options are "solute" or "water". Wait, the question is: "The normal movement of water across this membrane is from high to low (blank) concentration." So if it's water concentration, then high to low water. But maybe the options are "solute"—no, that would be low to high. Wait, maybe the correct answer is "water" (but maybe the options are "solute" or "water"). Wait, perhaps the intended answer is "water" (but let's think again). Osmosis: net movement of water through a selectively permeable membrane from a region of higher water potential (higher water concentration, lower solute concentration) to a region of lower water potential (lower water concentration, higher solute concentration). So the movement is from high to low water concentration. So the blank is "water".

A high concentration of water means there are fewer dissolved particles (since water is the solvent; more water, less solute particles). A low water concentration has more dissolved particles. So high water concentration has "fewer" dissolved particles than low water concentration.

Answer:

selectively

Question 2