Which of the following molecules spontaneously form membranes when mixed in water and most likely were one of the first organic compounds formed on Earth?
A) DNA
B) Enzymes
C) Phospholipids
D) RNA
C
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Where are the protein complexes associated with the electron transport chain located?
A. mitochondrial matrix B. mitochondrial membrane C. mitochondrial inner membrane D. mitochondrial intermembrane space E. cytosol
In producing beer and wine, humans have exploited the microbial ability to ferment sugar to alcohol. The microbes responsible for this process are ________.
A. algae B. fungi C. protozoans D. bacteria
Fermentation takes place in the
A) cytosol. B) mitochondrial outer membrane. C) mitochondrial inner membrane. D) mitochondrial intermembrane space. E) mitochondrial matrix
Which of the following statements about DNA libraries is true?
(a) Production of a DNA library involves the direct insertion of short DNA fragments into bacteria through transformation. (b) By placing the library DNA into bacteria, the bacteria can be used to amplify the desired DNA fragments from the DNA library. (c) Individual bacteria that have taken up most of the library DNA are selected for during the construction of a DNA library. (d) The library DNA within the bacteria will only be replicated when it hybridizes to a DNA probe.