Prokaryotes have ________S ribosomes with ________S and ________S subunits, whereas eukaryotes have ________S ribosomes with ________S and ________S subunits.
A) 80, 50, 30; 100, 60, 40
B) 100, 60, 50; 90, 60, 40
C) 70, 50, 30; 80, 60, 40
D) 70, 40, 30; 80, 50, 30
E) 80, 60, 40; 70, 50, 30
C) 70, 50, 30; 80, 60, 40
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The atomic number corresponds to the number of ________ in a specific element, while the atomic weight corresponds to the number of ________ in a specific element.
A. protons; protons and neutrons B. protons and neutrons; neutrons C. protons; neutrons D. neutrons; protons
The active site of an enzyme is the region that _____
A) binds allosteric regulators of the enzyme B) is involved in the catalytic reaction of the enzyme C) binds noncompetitive inhibitors of the enzyme D) is inhibited by the presence of a coenzyme or a cofactor
Based on the data provided in the two graphs shown in Figure 9.5, which method of culturing resulted in the greatest number of fibroblast cells on day 6?
A. fibroblasts cultured with serum B. fibroblasts cultured with platelet proteins C. fibroblasts cultured with plasma D. The same results are obtained whether the fibroblasts are cultured with serum or with platelet proteins.
The fact that all matter is made up of tiny particles that are in constant motion is known as the
A. first law of thermodynamics. B. energy motion theory. C. kinetic molecular theory. D. first law of solids.