A client has a serious case of the flu. A random sample of sputum was taken from the patient coughing up blood. The lab tech said they had isolated a bacterium that did not have any peptidoglycan. You hypothesize that the identity of this microbe could possibly be

A. Mycobacterium tuberculosis.
B. Borrelia burghdorferi.
C. Streptococcus pneumoniae.
D. Mycoplasma pneumoniae.
E. Staphylococcus aureus.


Ans: D. Mycoplasma pneumoniae.

Biology & Microbiology

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The initial depolarization associated with the action potential is the consequence of the opening of _________________ at the axon hillock

A. voltage-gated potassium channels B. voltage-gated calcium channels C. voltage-gated sodium channels D. voltage-gated chloride channels

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Which immune system cells primarily function as antibody producers and originate from stem cells?

a. B lymphocytes b. T lymphocytes c. Natural killer cells d. Neutrophils

Biology & Microbiology

When does an infection become a disease?

What will be an ideal response?

Biology & Microbiology