Which of the following statements is false?
a. Enzymes catalyze reversible reactions in either
direction.
b. Enzymes are highly specific.
c. Most enzymes are protein molecules.
d. Enzymes allow some reactions to occur that
would never occur without them.
e. Enzymes may be temporarily modified during
their involvement with the substrate.
Answer: d
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Which of the following is the correct order of
taxa from most inclusive to least inclusive?
a. domain, kingdom, phylum, class, order, family, genus, species b. domain, kingdom, phylum, order, class, family, genus, species c. domain, kingdom, phylum, family, order, class, genus, species d. domain, phylum, kingdom, class, order, family, genus, species e. domain, kingdom, order, class, phylum, family, genus, species
Synaptic integration means that ____
a. positive or excitatory stimuli produce an excitatory postsynaptic potential b. the positive and negative ions neutralize each other c. excitatory and inhibitory signals are summed in a receiving neuron d. the adjacent neurons interact so that excitatory and inhibitory stimuli cancel each other out e. excitatory signals take precedence over inhibitory signals
What type of thermal burn is MOST commonly associated with inhalation injury?
A) Steam burns B) Flame burns C) Scald burns D) Arc burns
Which of the following would be used to sterilize a mattress?
A) autoclaving B) formaldehyde C) ethylene oxide D) heavy metals E) non-ionizing radiation