AP BIOLOGY

Detailed explanation-1: -Answer: Oxygen molecules move from air sacs in the lungs across cell membranes into blood. Robert sprays water on the veggies in the produce section to “plump them up". Water will diffuse (osmosis) and the fish will explode.

Detailed explanation-2: -To see an easy demonstration of osmosis, soak gummy candies in water. The gel of the candies acts as a semipermeable membrane. Examples of Diffusion: Examples of diffusion include perfume filling a whole room and the movement of small molecules across a cell membrane.

Detailed explanation-3: -Final Answer: Uptake of water by root hair and swelling of seed when put in soil are examples of osmosis.

Detailed explanation-4: -A phenomenon called endosmosis takes place when raisins are placed in water for few hours. When raisins are soaked in water, they swell. All this is due to the process of osmosis. The water molecules pass the cell membrane of the raisins and the raisins thus get swollen.

Detailed explanation-5: -Answer and Explanation: An example of diffusion is c. passage of oxygen from the alveoli to the blood.