Basic dyes such as methylene blue bind to cellular molecules that are
A. aromatic.
B. hydrophobic.
C. negatively charged.
D. positively charged.
Answer: C
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The information storage molecules of cells are called:
A. hormones. B. proteins. C. phospholipids. D. enzymes. E. nucleic acids.
Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent?
A) electron transport B) glycolysis C) the citric acid cycle D) oxidative phosphorylation E) chemiosmosis
If a drug binds irreversibly to a postsynaptic receptor to prevent the binding of an excitatory neurotransmitter, what is
the most likely result?
a. an increased number of IPSPs b. an increased number of EPSPs c. a prolonged hyperpolarization d. a decreased number of IPSPs e. a decreased number of EPSPs
What accounts for the majority of mass within a biomass pyramid of a lake?
a. plants b. snakes c. invertebrates d. small fish
e. large-mouth bass