A person with this lung disease experiences a loss of elastic tissue, which makes it hard to exhale
A) pneumonia B) emphysema C) tuberculosis D) influenza
Answer: B
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The microbiologist receives a sputum specimen that upon preliminary Gram staining review of direct smear, contains numerous squamous epithelial cells and an excessive amount of contami-nating normal flora. Based on the microbiologists knowledge, the microbiologist rejects the spe-cimen and requests a new sample. The physician insists that the microbiologist culture the sample as received. The
microbiologist should: a. disregard the physicians request and dis-card the specimen. b. notify their supervisor and write-up the physician. c. set-up the culture as ordered noting the lack of specimen integrity that may com-promise culture results. d. the microbiologist should have not called the physician and process the sample as received.
The membrane component(s) primarily responsible for the structure and function of plasma membranes is/are
A. glycosylated proteins. B. phospholipids. C. glycolipids. D. nucleic acids. E. cholesterol.
When a plant reaches sexual maturity, the genes that control the production of __________
are inactivated and the genes that control __________ are activated.
a. flowers; leaves b. flowers; roots c. leaves; flowers d. leaves; roots
Filarial roundworms cause elephantiasis by
a. encysting in muscle tissue. b. promoting the growth of fatty tumors. c. obstructing lymphatic vessels. d. laying numerous eggs in the joints of their hosts.