Dental plaque (a biofilm), a first stage in tooth decay, consists of
A. bacteria surrounded by a polysaccharide matrix.
B. lactic acid.
C. sugars.
D. fluoride.
E. bacteria and high pH.
Answer: A
You might also like to view...
A color-blind, chromatin-positive male child (one Barr body) has a maternal grandfather who was color-blind. The boy's mother and father are phenotypically normal
Construct and support (using appropriately labeled diagrams) a rationale whereby the chromosomal and genetic attributes of the chromatin-positive male are fully explained.
Microbes and bacterial-type organisms are _______
Fill in the blank(s) with the appropriate word(s).
Temporal gene regulation refers to which of the following circumstances?
a. Certain genes are induced only at a particular point in the organism’s life cycle. b. Certain genes are induced only in specific tissues. c. Heat-shock genes are induced during periods of temperature stress. d. "Housekeeping" genes are induced in response to a viral infection. e. Molecular chaperones are synthesized after heavy-metal ingestion.
Approximately what percentage of the energy of glucose (C6H12O6) is transferred to storage in ATP as a result of the complete oxidation of glucose to CO2 and water in cellular respiration?
A) 2% B) 4% C) 10% D) 25% E) 40%