Case 1: The patient was a 3 1/2 week-old male who was born at term. He required intubation at that time and continued to require respiratory support. Over a 24-hour period, the infant developed bulging anterior fontanelles (the “soft spots” in the skull), increased respiratory and heart rates, wide fluctuations in blood pressure, difficulties maintaining adequate tissue oxygenation, and his peripheral white blood cell count increased from 6,300 to 13,700/ml (high abnormal). The child began to have focal seizures as well. A cerebrospinal fluid (CSF) examination showed 3,900 WBC/ml (increased) with 92% neutrophils, glucose 2 mg/dl (decreased), and protein of 350 mg/dl (increased). Gram staining of the child’s CSF showed many gram-positive cocci. Case Study 1 Question 2:  What is the most likely organism causing his infection?

Which TWO statements are correct? A bacterial culture enters stationary phase because: the cells are “tooling up” for rapid growth toxic products of metabolism may have accumulated the energy source may have been depleted the cells have aged and old cells cease dividing it must synthesize new proteins before it can resume growth

Which of the following is NOT characteristic of an endospore?

 Match the terms of metabolism with the most appropriate definition.

The function of lysozyme is to:

Most microbes that are pathogenic to humans are:

Which of theses statements about bacterial conjugation is FALSE, regarding the transfer of resistance plasmids?

Investigators have shown that when one member of a household chronically takes an antibiotic to treat acne, the concentration of antibiotic resistant bacteria on the skin of other family members increases. This would occur because:

An antibiotic susceptibility test shows the following results after incubation: If color represents growth, what is the MIC in this example?

Which statement accurately reflects energy production in bacteria?