What's the difference between diffusion, osmosis and active transport with examples.

These are three key processes of movement that you need to be aware of.

Diffusion is the movement of dissolved solutes or gases from an area of high concentration to an area of low concentration (down a concentration gradient). This is a passive process and so requires no energy in order to take place.

Osmosis is the movement of water down a concentration gradient (from high to low concentration) across a partially permeable membrane. Once again, this is a passive process and no energy is required.

Active transport is the movement of dissolved solutes across a membrane against a concentration gradient (moving from low to high concentration). This process requires a carrier protein, and energy in the form of ATP is required.

Explanation:

hope this helps

answer; both surfaces of the membrane are nonpermeable

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'