The endosymbiont hypothesis suggests that the mitochondria of eukaryotic cells are descended from captured
a. cyanobacteria.
b. archaebacteria.
c. aerobic bacteria.
d. chemoautotrophic bacteria.
e. eukaryotic algae.
C; Scientists hypothesize that mitochondria arose from captured aerobic bacteria, and chloroplasts from captured relatives of cyanobacteria. There are currently no organelles that resemble achaebacteria or chemoautotrophs. While some forms of animals, fungi, and protists seem to have captured whole eukaryotic algae, the algae themselves contain chloroplasts apparently descended from prokaryotes.
You might also like to view...
Color blindness is an inherited disorder passed from ____________________ to child
Fill in the blank(s) with correct word
What is the key concept addressed by the question?
What will be an ideal response?
Which combination of conditions would increase the rate of diffusion through a semipermeable membrane the most? I. steeper concentration gradients II. higher temperatures III. larger molecules
a. I only b. II only c. I and II d. II and III e. I, II, and III
The main causative agent of gas gangrene is ________.
A. Clostridium perfringens B. Staphylococcus epidermidis C. Staphylococcus aureus D. Mycobacterium leprae E. Streptococcus pyogenes