Which of the following is a function of the glycocalyx?
A) to aid in adhering to the cell's environment
B) to aid in preventing phagocytosis from cells that might engulf the bacterium
C) formation of biofilms
D) all of the above
Ans: D) all of the above
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Explain why a eukaryotic cell needs membrane-enclosed lysosomes and peroxisomes
What will be an ideal response?
Resistance to motion
What will be an ideal response?
Why is it ineffective to treat viral disease with antibiotics?
a) Due to excessive antibiotic use, most viruses have evolved to be resistant to antibiotics. b) Antibiotics inhibit enzymes specific to bacteria and have no effect on virally encoded enzymes. c) Pathogenic RNA viruses have a high rate of mutation, producing new genetic varieties that are insensitive to antibiotic treatment.
Which of the following antibiotics inhibits the synthesis of bacterial cell walls?
a. Penicillin b. Streptomycin c. Tetracyclin d. Actinomycin D