Which of the following terms best describes the role
of certain metal ions and coenzymes in metabolic
processes?
a. reactants
b. intermediates
c. cofactors
d. products
e. catalysts
Answer: c
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Which of the following statements describes Neanderthals?
A. They are also called Cro-Magnons for the site where they were first discovered. B. They are believed to have given rise to Homo sapiens. C. They were the first bipedal hominins discovered. D. They are a separate species that is closely related to Homo sapiens.
In nature, plant fitness may be strongly influenced by:
A. the capacity to deter herbivores. B. the ability to resist pathogens. C. the ability to grow tall. D. the ability to disperse over large distances. E. More than one answer is correct.
In bog soils, the decomposition rate of lignin-cellulose complexes is accelerated by the water-logged, predominately anoxic conditions.
Answer the following statement true (T) or false (F)
The space between the cell membrane and the cell wall is important during aerobic respiration. Why?
A. Pyruvate is transported into the space to be converted into acetyl coenzyme A to enter the Krebs cycle. B. Hydrogen ions are transported out into the space to set up a hydrogen gradient. C. Oxygen combines with electrons in that space to form water. D. Cytochrome electron carriers are located in the space.