Which of the following is NOT a feature associated with filtration?
A) nitrocellulose or plastic membrane filters
B) sterilization of heat-sensitive materials
C) varying thicknesses of membrane filters used
D) use of HEPA filters to filter air
E) ability of some filters to trap viruses and proteins
C
You might also like to view...
What kind of fruit is formed from the fusion of individually pollinated flowers?
a. aggregate b. simple c. multiple d. fleshy e. dry
What does this figure suggest is responsible for increasing species diversity?
A) time alone B) increasing leaf litter C) decreasing leaf litter D) increase in agriculture
What is the main form in which sugars are transported in the phloem sap?
a. starch b. fructose c. lactose d. sucrose
You are studying a trafficking protein important for secretion in helper T cells. What is the likely outcome of a defect in this protein?
A. Impaired secretion of immunoglobulins B. Impaired secretion of degraded antigens C. Impaired secretion of cytokines D. Impaired secretion of membrane attack complex