(c) organic stable atoms
(d) unstable atoms- A reaction that breaks the bond between atoms of a molecule or com-
pound is called a decomposition reaction.
(a) True
(b) False - What kind of reaction performs synthesis and decomposition?
(a) Endergonic reaction
(b) Fusion reaction
(c) Fission reaction
(d) Exchange reaction - The reaction rate is increased by
(a) temperature
(b) pressure
(c) orientation
(d) all of the above - The enzyme temporarily bonds to the substrate and then positions the sub-
strate to increase the likelihood that the substrate will collide with another
atom, ion, or molecule and thereby bring about a chemical reaction.
(a) True
(b) False - Describe a gram-positive cell wall.
(a) A gram-positive cell wall has many layers that repels the crystal of
violet dye when the cell is stained.
(b) A gram-positive cell wall has many layers of peptidoglygan that
retain the crystal of violet dye when the cell is stained.
(c) A gram-positive cell wall has one layer that retains the crystal of vio-
let dye when the cell is stained.
(d) A gram-positive cell wall has one layer of peptidoglygan that repels
the crystal of violet dye when the cell is stained. - The cytoplasmic membrane is a membrane that provides a selective bar-
rier between the nucleus and the cell’s internal structures.
(a) True
(b) False
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