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.
CELLULAR TRANSPORT. The two main types of transport into and out of cells include passive transport and active transport. PASSIVE TRANSPORT involves the transport of molecules from regions of high concentration to regions of low concentration.No energy is used in this process.ELLULAR TRANSPORT. The two main types of transport into and out of cells include passive transport and active transport. PASSIVE TRANSPORT involves the transport of molecules from regions of high concentration to regions of low concentration.