An anaerobic organism lacks the enzymes necessary for using __________ in respiration.
A) carbon dioxide
B) water
C) superoxide
D) oxygen
D) oxygen
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The E horizon of soils is characterized by the maximum amount of
A) biological activity. B) decomposition. C) leaching of mineral particles. D) accumulation of leached mineral particles.
Which of the following is a native protein isolated from bacteria and used to soften cotton fibers in jeans and other clothes?
A) Cellulase B) Amylase C) Chymosin D) Penicillin E) Polymerase
The major site at which membrane lipids are synthesized is
a. the cytosolic side of the ER membrane. b. the cytosol. c. the lumenal side of the ER membrane. d. the cytosolic side of the Golgi membrane.
Which is the correct pathway of a protein through a cell as it is being made?
A. Nucleus, smooth endoplasmic reticulum, Golgi apparatus B. Ribosome, Golgi apparatus C. Nucleus, Golgi apparatus, ribosome D. Golgi apparatus, ribosome, rough endoplasmic reticulum