Which statement best describes scientists who contributed to the current
body of scientific knowledge?
o
a. they were wealthy men during the 20th century.
o
b. they were mainly ancient philosophers whose theories stood the
test of time.
c
.
they were mainly from european countries such as england and
france.
o
d. they were made up of men and women throughout history from
different countries.

How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron transport chain? a. high-energy electrons interact with pyruvic acid to create a phosphate bond with adp, forming atp. b. high-energy electrons supply the needed energy to synthesize atp from the lower-energy adp in the electron transport chain. c. high-energy electrons supply a negative charge which causes the citric acid to oxidize, forming a phosphate group to bond with adp. d. high-energy electrons increase the temperature of adp so it easily reacts to form atp.