Sara read in a book that in 1800, the Italian physicist Alessandro Volta observed that two metals connected by a conducting liquid produced a continuous transfer of electrons. This phenomenon was different from the rapid static discharge observed by Benjamin Franklin.
Sara’s book was describing Volta’s observation of:

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

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.

Number and variety of living organism; includes genetic, species, and ecological types