Chapter 27, Problem 8MCQ

${\text{CO}}_{\text{2}}{\text{+8H}}^{\text{+}}+8{\text{e}}^{-}\to {\text{CH}}_{\text{4}}{\text{+2H}}_{\text{2}}\text{O}$

1. a. aerobic respiration
2. b. anaerobic respiration
3. c. anoxygenic photosynthesis
4. d. oxygenic photosynthesis