AP BIOLOGY

Detailed explanation-1: -Here the carrot sticks placed in freshwater becomes stiff and hard, due to diffusion of water into the cells, whereas it becomes limp in saltwater as the water leaves cells, hence it is concluded that the freshwater act as hypotonic and the saltwater acted as hypertonic to the cell.

Detailed explanation-2: -So, if a carrot is placed in very salty water, it will be less salty than the water around it. This causes the water in the carrot to move out of the carrot and into the salt water. The result is that the carrot becomes limp and tastes saltier than before.

Detailed explanation-3: -As solute concentration increased, so did osmotic pressure. The increased osmotic pressure in the high salt, sugar and isotonic drink solutions drew water out of the carrot, killing the carrot.

Detailed explanation-4: -Explanation: Students will be able to visualize what happens when cells are put into hypertonic and hypotonic solutions. They should see that carrots will swell when they are placed in solutions that are hypotonic and will shrink when they are placed in solutions that are hypertonic.

Detailed explanation-5: -If the solution is more salty (i.e., hypertonic) than the carrots, the carrots will become squishy and may shrink, just as in the regular activity.