Biology I-Quiz 2 21) The net movemenst of molecules from a high concentration to a low concenstnstion is hest described by which of the following Osmosis Exocytosis Passive transport Active transport Endocytosis i'l 22) How many CO, molecules are generated from each pyruvate molecule that enters the r Two Three Four Five 23)FADH: is an esample of ain) enxyme-substrate complex electron carrier molecule protein active site enzyme 25 24) Which of the following has the greatest amount of kinetic energy? The cool air surrounding the car engine A hot car engine An unlit firecracker A moving car Atank of gasoline ? 1 25) Plasma membranes are best described asa single layer of phospholipids with tails pointed toward the inside of the cell single layer of phospholipids with water molecules attached along one side double layer of phospholipids with hydrepihilie double layer of phospholipids with hydrophobic tails facing away from each other (tuward the cytoplasm of the cell and the extracellular solution) e away from-one another e Tdouble layer of phospholipids with hydrophobic tails facing toward one another
