Osmosis is a form of passive transport. Which defines osmosis?(1 point) Responses the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy the movement of water across a semipermeable membrane up a concentration gradient from low to high, using no energy the movement of water across a semipermeable membrane up a concentration gradient from low to high, using no energy the movement of water across a semipermeable membrane up a concentration gradient from low to high, using energy the movement of water across a semipermeable membrane up a concentration gradient from low to high, using energy the movement of water across a semipermeable membrane down a concentration gradient from high to low, using energy the movement of water across a semipermeable membrane down a concentration gradient from high to low, using energy

The correct definition of osmosis is: the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy.

Endocytosis and exocytosis are forms of active transport. What is active transport?(1 point) Responses the movement of molecules down a concentration gradient from high to low, using no energy the movement of molecules down a concentration gradient from high to low, using no energy the movement of molecules up a concentration gradient from low to high, using energy the movement of molecules up a concentration gradient from low to high, using energy the movement of molecules up a concentration gradient from low to high, using no energy the movement of molecules up a concentration gradient from low to high, using no energy the movement of molecules down a concentration gradient from high to low, using energy

The correct definition of active transport is: the movement of molecules up a concentration gradient from low to high, using energy.

What does it mean for an environment to be isotonic?(1 point) Responses The concentration of solute in the environment and the concentration inside the cell are at equilibrium. The concentration of solute in the environment and the concentration inside the cell are at equilibrium. The concentration of solute in the environment is different from the concentration inside the cell. The concentration of solute in the environment is different from the concentration inside the cell. The concentration of solute is greater inside the cell than in the environment. The concentration of solute is greater inside the cell than in the environment. The concentration of solute is greater in the environment than inside the cell. The concentration of solute is greater in the environment than inside the cell.

The correct definition is: The concentration of solute in the environment and the concentration inside the cell are at equilibrium.

Cells dispose of large waste molecules through a process called(1 point) Responses exocytosis. exocytosis. endocytosis. endocytosis. diffusion. diffusion. osmosis.

The correct answer is exocytosis.

A cell is dropped into a saltwater solution and shrivels up. You infer that, compared to the cell, the type of saltwater solution is(1 point) Responses hypertonic. hypertonic. hypotonic. hypotonic. tonic. tonic. isotonic.

Based on the information provided, the type of saltwater solution can be inferred as hypertonic.

The correct definition of osmosis is:

"the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy."

To determine the correct answer, we need to understand the concept of osmosis. Osmosis is a type of passive transport, which means that it does not require any energy input. It involves the movement of water molecules from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration) through a semipermeable membrane. The direction of water movement is determined by the concentration gradient of solute particles.

Based on this understanding, we can identify that the correct response is the first option, which states that osmosis is the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy.