Which of these hydrocarbons has a double bond in its structure?
a. C3H8
b. C2H6
c. CH4
d. C2H4
e. C2H2
ANSWER: d
You might also like to view...
Magnetosomes are
A. responsible for the heat resistance of endospores. B. composed of magnetic iron oxide particles. C. found in all bacteria and some archaea. D. infoldings of the cell membrane. E. also termed metachromatic granules.
Excessive heat or extremes of pH often cause denaturation of proteins, which means that the proteins ____
a. have fallen apart into individual monomer subunits b. are no longer biological molecules c. have broken into many separate domains d. are no longer in a functional three dimensional conformation e. are highly reactive
Which of the following is not a description of the cell membrane?
A. It is composed of phospholipid molecules. B. It is a mosaic structure. C. It is a rigid structure. D. It is a bilayered structure. E. It is a fluid structure.
Dissolving
What will be an ideal response?