Indicate true (T) and false (F) statements below regarding G-protein-coupled receptors (GPCRs). Your answer would be a five-letter string composed of letters T and F only, e. g. TTFFF. ( ) All GPCRs share a similar structure composed of seven transmembrane helices. ( ) All GPCR ligands (signal molecules) have a similar structure. ( ) GPCRs have only been found in multicellular organisms, consistent with their role in intercellular signaling. ( ) The hormone insulin is recognized by a GPCR on the surface of its target cells. ( ) Once activated, a GPCR molecule can activate multiple molecules of G protein to amplify the incoming signal.

Amedication order for 125 micrograms of digoxin in 100 mil liters of normal saline is prescribed to be delivered over 1 hour. you have two 1- milliter ampules containing 599? micrograms. how many milliliter of digoxin injection will be needed?

Neelaredoxin is a 15-kda protein that is a gene product common in anaerobic prokaryotes. it has superoxide-scavenging activity, and it is constitutively expressed. in addition, its expression is not further induced during its exposure to o2 or h2o2 (silva, g., et al. 2001. j. bacteriol. 183: 4413–4420). which of the following statements best describes neelaredoxin synthesis? a-neelaredoxin is produced at all times; levels are constant even when exposed to o2 or h2o2.b-neelaredoxin is produced at all times; exposure to o2 or h2o2 increases expression. c-neelaredoxin is produced at all times; exposure to o2 or h2o2 decreases or prevents expression. d-neelaredoxin is only produced when there is exposure to o2 or h2o2.

Describe how a student should adjust the microscope to see the cells on a slide more clearly?