Why does the initial rate of an enzymatic reaction eventually plateau at a maximal velocity even though the concentration of the substrate continues to be increased?
A) Enzymes are denatured following action on a substrate.
B) High concentrations of substrate inhibit movement of the substrate to available enzymes.
C) The enzyme available in the solution has been consumed.
D) The enzyme is saturated and unable to bind substrate at a higher rate.
D
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Which organs are most involved in metabolism and excretion?
A) Stomach and intestines B) Small and large intestines C) Liver and kidneys D) Spleen and gall bladder
A normal capnogram contains the most CO2 during which of the following phases?
a. 1 c. 3 b. 2 d. 4
The X-ray, discovered in 1895, is a type of ________ wave.
Fill in the blank(s) with the appropriate word(s).
Which organ or organ system has the greatest tolerance for lack of perfusion (shock)?
A. Brain B. Kidneys C. Gastrointestinal system D. Skeletal muscle