1. Moves molecules from high to low concentration II. Moves molecules with the concentration gradient
III. Does not require energy
IV. Requires the use of a membrane protein
V. Used to move small and/or nonpolar molecules
VI. Used to move large and/or polar molecules
Cell membranes are selectively permeable, regulating which substances can pass through, as well as how much of each substance
can enter or exit at a given time. In cells, some molecules can move down their concentration gradients by crossing the
phospholipid portion of the membrane directly, while others must pass through membrane proteins. Which of these statements
does NOT apply to facilitated diffusion?

Hybrid instruments that play sounds that are part sampled and part synthesized are known as:

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.