Explain the major differences between covalent and ionic bonding
What will be an ideal response?
In covalent bonding, atoms share electrons. In ionic bonding, two oppositely charged ions are attracted to each other.
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Which of the following does not inhibit protein synthesis?
A. Tetracycline B. Erythromycin C. Streptomycin D. Penicillin E. All of the choices inhibit protein synthesis.
The simplest and the most common monosaccharide is a six-carbon sugar called:
A. galactose. B. lactose. C. cellulose. D. glucose. E. sucrose.
Depression is treated by drugs that slow the uptake of which neurotransmitter?
a. epinephrine b. adenosine c. dopamine d. serotonin e. endorphins
The elimination of resident bacterial populations is
a. beneficial to animals. b. beneficial to opportunistic pathogens. c. difficult because they are resistant to antibiotics. d. unlikely because of their large numbers. e. all of these.