AP BIOLOGY

LABORATORY REVIEW

DIFFUSION AND OSMOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Diffusion and Osmosis are examples of ____
A
Active Transport
B
Passive Transport
Explanation: 

Detailed explanation-1: -Both diffusion and osmosis are passive transport processes, which means they do not require any input of extra energy to occur. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.

Detailed explanation-2: -Diffusion is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. You are familiar with diffusion of substances through the air.

Detailed explanation-3: -Water, which can quickly pass through the membrane via channel proteins, will begin to leave the cell at a higher rate than it enters, with a net movement to the area with a high concentration of A, thus lowering the concentration. This is an example of osmosis.

Detailed explanation-4: -Osmosis is a specific type of diffusion; it is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.

There is 1 question to complete.