Question

when a cell is placed in an isotonic solution: 1 point the cell will shrink. there will be no net movement of water across the cell membrane. the cell will swell and potentially burst. active transport will cease. oxygen moves from a high concentration in the lungs to a low concentration in the blood across the cell membranes of lung cells. this is an example of: 1 point osmosis. simple diffusion (a type of passive transport). facilitated diffusion. active transport.

Explanation:

1. In an isotonic solution, the solute concentration outside the cell is equal to that inside the cell. So, there is no net movement of water across the cell membrane by osmosis.
2. Oxygen moving from an area of high concentration in the lungs to an area of low - concentration in the blood across cell membranes is an example of simple diffusion. Simple diffusion is a type of passive transport where small, non - polar molecules like oxygen move down their concentration gradient without the help of transport proteins.

Answer:

1. There will be no net movement of water across the cell membrane.
2. Simple diffusion (a type of passive transport)