The part of the enzyme into which the substrate fits is called the ________.
a. active site
b. substrate location
c. solute
d. feedback site
Answer: a. active site
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During elongation, RNA polymerase has three prominent channels, or grooves. These channels provide sites for all of the following EXCEPT _____
A) a site for the double-stranded DNA molecule B) a site for the entry of ribonucleoside triphosphates C) a site for the exit of the diphosphates removed from the nucleotide triphosphates D) a site for the growing RNA strand
The accommodation of the very long DNA strands that are part of a chromosome into the limited space of the nucleus is achieved by coiling the DNA around beads of histones into repeating subunits. These DNA-wrapped histones are called:
A. Solenoids B. Nucleosomes C. Chromatin loops D. Rosettes
Which of the following statements accurately describes the following reaction?
a. enzymatic digestion of carbohydrates in the mouth by enzymes secreted by the salivary
glands
b. enzymatic digestion of proteins in the stomach by enzymes secreted by the pancreas
c. enzymatic digestion of lipids in the stomach by enzymes secreted by the liver
d. enzymatic digestion of proteins in the small intestine by enzymes secreted by the pancreas
e. enzymatic digestion of lipids in the small intestine by enzymes secreted by the pancreas
Pseudopods are found on some
A. protozoa. B. algae. C. bacteria. D. blue-green algae.