A young man presents with severe respiratory distress. He is conscious, but confused, and smells of freshly cut grass. Auscultation of his breath sounds reveals coarse crackles in all lung fields, and he is coughing up copious secretions. This patient's clinical presentation is MOST consistent with exposure to:
A) chlorine.
B) phosgene.
C) V agent.
D) soman or tabun.
Answer: B) phosgene.
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The three main groups of known organisms include (select all that apply):
A. Bacteria. B. Archaea. C. Eukaryotes. D. Fungi. E. Prokaryotes.
The functional group shown above is ____
a. a carbonyl group b. a hydroxyl group c. a phosphate group d. an amino group e. a carboxyl group
The primary function of ________ is secreting cytokines that regulate/coordinate the immune system.
A. plasma B. helper T cells C. cytotoxic T cells D. natural killer cells
In the cytoplasm, materials are organized, separated, and sorted by membranes. Cells exploit the selective permeability of these membranes to partition populations of molecules and generate chemical energy for the cell
Use the principles of the first and second laws of thermodynamics to explain how membranes can be used to produce chemical energy.