In what way is proteobacterial photosynthesis different from plant photosynthesis?
a. Proteobacterial photosynthesis does not use a proton gradient.
b. Proteobacterial photosynthesis does not consume CO2.
c. Proteobacterial photosynthesis uses water as an electron donor.
d. Proteobacterial photosynthesis uses a different type of chlorophyll.
Ans: d. Proteobacterial photosynthesis uses a different type of chlorophyll.
You might also like to view...
Each type of cone cell is stimulated by a different color of light. In humans, a colorful scene is perceived as a combination of signals from three cone types. Which colors correspond to these three cones?
I-Red II-Yellow III-Orange IV-Blue V-Green VI-Purple A. I, II, and III B. I, III, and IV C. I, IV, and V D. I, V, and VI E. II, IV, and VI
Density refers to the
a. average weight of individuals in a population. b. ability of the population to adapt to the environment. c. intelligence of the organism. d. biomass of the population of organisms. e. number of individuals per unit area.
All of the following have been produced by inserting human genes into bacteria EXCEPT
A) cancer-cell-killing hormones, which cure patients who have malignancies. B) insulin, which treats diabetics. C) growth hormone, which helps children grow normally. D) clot-dissolving enzymes, which help heart attack victims recover. E) blood-clotting enzymes, which treat hemophiliacs.
The solvent, cohesive, and temperature stabilization properties of water are primarily due to its ____.
A. ability to promote hydrophilic interactions B. ionic bonds C. hydrogen bonds D. ability to promote hydrophobic interactions E. nonpolar nature