Nationwide, over 100,000 patients a year die form septic shock. This is due to
A. the presence of lipopolysaccharide in the outer membrane.
B. lipoteichoic acid in the cell wall.
C. a cytotoxin similar to the diphtheria toxin.
D. coagulase.
E. a neurotoxin similar to botulin.
Answer: A. the presence of lipopolysaccharide in the outer membrane.
You might also like to view...
In normal cells, cell adhesion molecules are partially responsible for the cell's ability to ____
a. migrate to new locations in the body b. recognize other cells as "self" c. exocytosis d. both migrate to new locations in the body and recognize other cells as “self” e. recognize linkages between cells in muscle and bone
If strains 1 and 2 conjugate and are plated on minimal medium, cells growing on the minimal medium will have the
genotype ____.
a. bio- met- thr- leu+ b. bio+ met+ thr+ leu+ c. bio+ met- thr- leu+ d. bio+ met+ thr- leu+ e. bio- met- thr- leu-
Which form of speciation is thought to be most common?
A) allopatric speciation B) ecological speciation C) sympatric speciation D) haploploid speciation E) none of the above
Looking out your window, you may notice that the bark of a nearby oak tree has a mosaic appearance, consisting of deep fissures and relatively flat areas. What accounts for this mosaic appearance? Select all correct choices
A. the formation of new cork cambia as old cork cambia grow away from the phloem B. the formation of new secondary phloem in distinct, discontinuous patches C. the formation of new cork cambia in distinct, discontinuous patches D. the formation of new vascular cambia as old cork cambia grow away from the phloem