Outside of the U.S., many cruise lines do not have automatic tipping policies, says McDaniel, as other countriesâ tipping customs are different than ours (and thus their staff is paid differently), so it may pay to look at cruises leaving from other countries and then look at their âsuggestedâ tipping options.
Best Answer: Active transport is the mediated process of moving particles across a biological membrane against a concentration gradient. If the process uses chemical energy, such as from adenosine triphosphate (ATP), it is termed primary active transport. Secondary active transport involves the use of an electrochemical gradient.
Best Answer: Active Transport to get into the cell membrane. When glucose a (form of sugar) levels in the blood stream rise, the pancreas releases insulin (a hormone). When insulin approaches a cell it initiates a transport system, allowing glucose to enter the cell and be used for energy. Not simple diffusion.