Chloroplasts are thought to have originated as

endosymbiotic associations when aerobic bacteria
engulfed photosynthetic cells. This relationship was
favored by the production of ___________ by the
endosymbiont.
a. glucose
b. hydrogen ions
c. ATP
d. oxygen
e. water


Answer: d

Biology & Microbiology

You might also like to view...

Replication of DNA is  

A.  conservative. B.  redundant. C.  dispersive. D.  semiconservative. E.  semidispersive.

Biology & Microbiology

Vascular plants and air-breathing animals first appeared during the:a

Silurian period. b. Ordovician period. c. Cambrian period. d. Permian period. e. Cretaceous period.

Biology & Microbiology

Considering solutions on either side of a selectively permeable membrane, a solution of higher osmolarity is said to be

hyperosmotic to a solution of lower osmolarity

Indicate whether the statement is true or false.

Biology & Microbiology

Several hours after a meal, glucagon increases blood glucose levels by activating an enzyme that breaks down glycogen, which is stored primarily in the

A) liver. B) pancreas. C) small intestine. D) kidneys. E) heart.

Biology & Microbiology