What is meant by lyophilization of proteins and why is it done?
What will be an ideal response?
It is the freeze-drying of a protein to prepare it to be placed into its final container. It
helps to stabilize the protein in transit to the pharmacy or doctor's office, and it gives the protein
better long-term storage capabilities.
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An ecosystem would include all of the following except
A. a community that may include producers, consumers, and decomposers. B. the biosphere, with its resources and functioning systems. C. populations of organisms in the same species. D. nonliving air, water, soils, and other components in an area. E. None of the answer choices is correct.
Pharyngeal arches will become all of the following EXCEPT
a. the face. b. the neck. c. the mouth. d. structures associated with the head region. e. lower stomach.
A human population with a large percentage of pre-reproductive individuals
A. is common in less-developed countries and will most likely increase in size. B. is common in more-developed countries and will most likely increase in size. C. is common in less-developed countries and will most likely decrease in size. D. is common in more-developed countries and will most likely decrease in size.
A client displays symptoms of fatigue, diarrhea, weight loss, neurological changes and enlarged lymph nodes. The client thought they had the flu because they felt ill, then felt better over the last 5 years. However, this cycle of feeling tired has led to fever, fatigue, sore throat, and night sweats with a rash. The patient also has thrush. Which result indicates the causative agent of AIDS?
A. Isolation of Mycobacterium tuberculosis. B. Presence of Candida albicans C. High level of CD4 T cells D. Detection of HIV antigen E. Isolation of Herpes simplex from skin and mucous membrane ulcers.