Select all that apply. The sodium-potassium ion pump: hydrolyzes ATP, utilizing the free phosphate ion to temporarily bind to the transport protein. opens a channel through the membrane by phosphorylating one subunit of the transport protein. D is the only known ion pump. D is mediated by one enzyme that both hydrolyzes ATP and transports the ions. can be run in reverse, phosphorylating ADP to ATP Which of the following describes secondary active transport? O The antiport process of transporting species in opposite directions. O The use of an ATPase to establish an anion or cation gradient O Establishment of an ATP gradient across a membrane, which drives uptake of sugars. or anion gradient with an ATPase that subsequently cdrives transport of an amino acid or sugar against a concentration gradient Select all that apply. Prostaglandins: O stimulate smooth muscle contraction. O have four-membered rings and are derived from arachidonic acid. O are a subset of leukotrienes. D inhibit the aggregation of platelets. D inhibit inflammation.