Antihistamines are effective in combating the allergic symptoms induced by a slow-reactive substance of anaphylaxis
Indicate whether the statement is true or false
F
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You step out of the shower and vigorously rub your skin with a towel. If you were able to analyze the towel, you would find skin cells. They are most likely
A. subcutaneous layer cells. B. keratinized epidermal cells. C. from the dermis. D. fibroblasts.
There are ________ primary taste (gustation) sensations.
A) 400 B) 20 C) 4 D) 5 E) 2
Which would be true about the following reaction? M + N Y + Z
A. Adding a catalyst would alter the final concentrations of products and reactants at equilibrium. B. Starting at chemical equilibrium, increasing the concentration of M will transiently increase the rate of formation of Y and Z. C. Starting at chemical equilibrium, decreasing the concentration of M will increase the concentration of Y and Z. D. Both the reaction is reversible and at chemical equilibrium and increasing the concentration of M will drive the reaction to the left are correct. E. Because the reactants and products are different molecules, this is not a reversible reaction.
Polyunsaturated vegetable oils can be changed from liquids to solids by
A. adding more unsaturated fatty acids to the molecules. B. removing the glycerol portion of the molecules. C. decreasing the number of double covalent bonds in their fatty acids. D. removing hydrogens from the molecules.