Which one of the following is a function of a protein?
A) stores genetic material and enables its transmission to the next generation
B) acts as a catalyst, speeding up chemical reactions
C) is a major subunit of cellulose
D) is a primary structural component of a cell membrane
E) provides energy for a muscle contraction
B
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The reservoir of infection for botulism and tetanus is
A. humans. B. soil. C. water. D. animals. E. soil AND water.
Soil protists often utilize bacteria as a nutrient source.
Answer the following statement true (T) or false (F)
What is a possible negative consequence of using bacteriophage to control food-borne pathogens?
A. The bacteriophage may infect humans, causing disease. B. The bacteriophage are likely to drastically alter the normal gut flora. C. The target bacteria may evolve resistance to individual strains of bacteriophage. D. The bacteriophage will alter the flavor and texture of the food.
Animal bodies are organized along the ________ axes.
A. dorsoventral, cranioposterior, and right-left B. dorsoventral, cranioposterior, and segmented C. apicalventral, anteroposterior, and right-left D. dorsoventral, anteroposterior, and left-right E. dorsoventral, anteroposterior, and segmented