AP BIOLOGY

THE CELL

TRANSPORT INTO AND OUT OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a gummy bear is placed in salt water, the mass of the gummy bear will decrease because water will move out of the gummy bear. What process does this represent?
A
osmosis
B
fermentation
C
respiration
D
diffusion
Explanation: 

Detailed explanation-1: -If a gummy bear is placed in water, then the gummy bear will swell. If a gummy bear is then placed in a higher salt water concentration, then the gummy bear will decrease in volume and mass. The mass and volume of a gummy bear that is placed in a salt solution will decrease due to the effect of osmosis.

Detailed explanation-2: -What is this? Osmosis causes some of the water molecules to move from the water in the jar into the gummy bear. As the gummy bear fills with water, it gets bigger. The gummy bear is made of gelatin, which acts like a sponge, so rather than dissolving in the water, the gummy bear grows in size.

Detailed explanation-3: -The Science Behind The Gummy Bear Experiment The concentration of particles in the saltwater solution is higher than the particles inside the gummy bear, and so the water that is in the bear travels out, making the bear decrease in size, or “shrink”. The control gummy should remain unchanged.

There is 1 question to complete.