Trans fat can best be described as a ______.
A. food additive that increases heart health
B. non-natural form of fat produced through manufacturing processes
C. protein
D. naturally occurring fat material that is added to food to increase shelf life
B. non-natural form of fat produced through manufacturing processes
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The pentose sugars found in DNA and RNA differ in which of the following ways?
A. The ribose in RNA lacks a hydroxyl group on the 2' carbon. B. The deoxyribose in DNA has a hydroxyl group in the 2' position but not the 3'. C. Both sugars have 5 carbons and form 5-membered rings, but ribose has an oxygen in the ring and deoxyribose does not. D. Both sugars have "puckered" rings but differ in which carbon lies outside of the plane of the rest of the ring atoms. E. The ribose in RNA attaches to the nitrogenous base through the 2' carbon, whereas the deoxyribose attaches to the base through the 1' carbon.
Which fungal phylum includes organisms that are of significant value to humans, such as the yeast Saccharomyces cerevisiae, antibiotic-producing species of Penicillium, truffles, and morels?
a. Ascomycota b. Basidiomycota c. Chytridiomycota d. Glomeromycota
Which two kingdoms did Linnaeus recognize?
a. bacteria and animals b. plants and fungi c. plants and animals d. protista and animals
A primary difference between cyanobacteria and purple and green phototrophic bacteria is
A) energy source. B) cell wall type. C) electron donor for CO2 reduction. D) cell type. E) color.