Aseptic packaging (where the packaging itself is rendered sterile) helps to preserve foods through
A) creation of an anaerobic environment in the packaging.
B) creation of an anaerobic environment in the packaging and exposure of the packaging to high heat.
C) exposure of the packaging to high heat.
D) mutation of bacterial DNA by exposure to the packaging material.
E) increasing pH in the food contained in the packaging.
C
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Genomic libraries can be constructed using either bacterial plasmids or what other vector?
A) bacteriophages B) ribosomes C) human chromosomes D) tRNA
All of the following could be made of polysaccharides except:
A. Glycocalyx B. S-layer C. Capsule D. Cellulose E. Peptidoglycan
An animal interrupting its daily pattern of activity to travel in a persistent manner toward a new habitat is known as
A. taxis. B. kinesis. C. migration. D. habituation. E. imprinting.
Which statement best represents the relationship between respiration and photosynthesis?
A) Respiration occurs only in animals, and photosynthesis occurs only inplants. B) Photosynthesis reverses the biochemical pathways of respiration. C) Respiration stores energy in complex organic molecules, whereas photosynthesis releases it. D) Photosynthesis stores energy in complex organic molecules, whereas respiration releases it. E) Photosynthesis occurs only in the day, and respiration occurs only at night.