Methanogens are always engaged in relationships with other microbes because methane production requires ________.
A. interspecies hydrogen transfer
B. energy provided by another microbe
C. removal of oxygen from the environment by another microbe
D. None of the choices are correct.
Answer: A
You might also like to view...
Protein X contains four transmembrane domains, a short N-terminus and a long C-terminus. Following protein synthesis, the N-terminus of the protein faces the lumen (the inside) of the ER. After protein X is transported to the cell surface via exocytosis, you would expect the N-terminus of protein X to be
A. extracellular. B. cytoplasmic. C. in the lumen. D. in the lipid bilayer of the plasma membrane.
Glycolysis of a glucose molecule
A. occurs in mitochondria. B. occurs only in animal cells. C. produces a net gain of two molecules of ATP. D. occurs only in microorganisms. E. transfers electrons from glucose to FAD.
When you sprinkle table salt on your food, the salt
A. ionizes. B. dissociates. C. forms covalent bonds with the food. D. undergoes an acid-base reaction.
Syphilitic tumors called ________ develop in the liver, skin, bone, and cartilage during the tertiary stage of syphilis.
Fill in the blank(s) with the appropriate word(s).