18. The concentration of hydrogen ions is greater inside the thylakoid than
outside. Which reaction releases hydrogen ions inside the thylakoid?
a. the break-up of water molecules
b. the formation of water molecules
c. the break-up of NADPH
d. the formation of NADPH

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?

Do the following statements describe actin, myosin, both of the proteins or neither of the proteins? (a) contains a binding site for calcium (b) found in the i band (c) exists in a globular (g) form and a filamentous (f) form (d) contains a binding site for atp (e) is a component of the thin filament (f) is a component of the thick filament

The periodic table houses noble gas elements in group 18. these elements are highly stable and rarely react with any other elements. what is one possible reason for the stability of the noble gas elements? a. they easily form covalent bonds. b. the compounds that they form with other elements are very unstable. c. their outermost shell has the maximum number of electrons that it can hold. d. they require less activation energy.