Cell Transport Benchmark
BY: Kevin Williams and Greg Alston
Example in the body: Digested particles of food diffuse in the colon. (food particles like carbohydrates, proteins)
Why this example fits: The example fits the type of transport because when your food digest into different food particles , it then spreads each particle more widely into the colon which is making it easier for our bodies to digest pieces of food. After each bite we take, the particles of food move and diffuses into the colon. Basically, this goes hand and hand with diffusion because just like during diffusion, the digested food particles move from a higher concentration in the stomach , to a lower one in the colon.
Example in the body: Kidney Dialysis which is a treatment for life-support that can uses a machine that can filter or extract some waste which includes things like salt, excess fluid from the blood etc, which then restores the blood back to normal.
Why this example fits: Just like with osmosis, Kidney Dialysis is an example of it because the molecules pass through a less concentrated solution, to a more concentrated one which leads to everything being equaled out.
Example in the body: Cells have a membrane protein that facilitates the diffusion of glucose from the bloodstream into the cell.
Why this example fits: This is an example of Facilitated diffusion because substances (glucose) are being transported across the cell membrane via protein carrier molecule.
Active Transport (Ion Pumps)
Example in the body: The maintaining of a balance of sodium and potassium inside and outside a cell.
Why this example fits: Transport because this is the movement of molecules across the cell membrane into a larger concentrated area. With the balance of sodium and potassium having to be balanced some molecules () must travel from the lower concentrated area to a higher one so the two can balance out.
Example in the body: White blood cells can surround bacteria.
Why this example fits: This example fits this transport because the white blood cells are being transported by a coated vacuole
Example in the body: Sections of enzymes from pancreatic cells and hormones from endocrine gland
Why this example fits: This example fits the transport because with Exocytosis , it's a process where the cell and become enclosed by pocketing the cell membrane to create a vesicle. With these sections of the pancreatic cell and hormones from endocrine gland it shows that these substances do become enclosed and create vesicles in the human body