Biological samples should be extracted under acidic conditions to reduce the interference of endogenous substances (mostly acidic) in the biological matrix.
Biological samples should be extracted under acidic conditions to reduce the interference of endogenous substances (mostly acidic) in the biological matrix.
Proteins can be separated electrophoretically on the basis of their relative contents of acidic and basic residues.（）
Proteins can be separated electrophoretically on the basis of their relative contents of acidic and basic residues.（）
Which of the following compounds is the most acidic？ A: phenol B: p-cresol C: p-nitrophenol D: benzyl alcohol
Which of the following compounds is the most acidic？ A: phenol B: p-cresol C: p-nitrophenol D: benzyl alcohol
Apoptotic<br/>cells can be stained positively when subjected to acidic lysosomal<br/>SA-β-GAL staining. (<br/>)
Apoptotic<br/>cells can be stained positively when subjected to acidic lysosomal<br/>SA-β-GAL staining. (<br/>)
Factors that contribute to calcium absorption, except(<br/>) A: Lactose B: 1,25 -(OH)2VD3 C: Acidic conditions D: Fatty acids
Factors that contribute to calcium absorption, except(<br/>) A: Lactose B: 1,25 -(OH)2VD3 C: Acidic conditions D: Fatty acids
The<br/>most acidic of the following flavonoids is __. A: 3-OH-Flavones B: 5-OH-Flavones C: 5,7-di-OH-Flavones D: 7,4'-di-OH-Flavones E: 3’,4’-di-OH-Flavones
The<br/>most acidic of the following flavonoids is __. A: 3-OH-Flavones B: 5-OH-Flavones C: 5,7-di-OH-Flavones D: 7,4'-di-OH-Flavones E: 3’,4’-di-OH-Flavones
Hypokalemia can result in following conditions except for () A: Arrhythmia B: Flaccid paralysis C: Metabolic acidosis D: Acidic urine E: Flat and low T wave
Hypokalemia can result in following conditions except for () A: Arrhythmia B: Flaccid paralysis C: Metabolic acidosis D: Acidic urine E: Flat and low T wave
Hyperkalemia can cause the following results except for () A: Ventricular fibrillation B: Paralysis of skeletal muscle C: Metabolic acidosis D: Acidic urine E: Tall and peaked T wave in ECG
Hyperkalemia can cause the following results except for () A: Ventricular fibrillation B: Paralysis of skeletal muscle C: Metabolic acidosis D: Acidic urine E: Tall and peaked T wave in ECG
Paradoxical acidic urine in metabolic alkalosis always indicates () A: Severe<br/>hyponatremia. B: Severe<br/>hypernatremia. C: Severe<br/>hypokalemia. D: Severe<br/>hyperkalemia. E: Severe<br/>dehydration
Paradoxical acidic urine in metabolic alkalosis always indicates () A: Severe<br/>hyponatremia. B: Severe<br/>hypernatremia. C: Severe<br/>hypokalemia. D: Severe<br/>hyperkalemia. E: Severe<br/>dehydration
12.At 25°C, Kw=Kc= [H+] [OH–] = 1.0 ×10–14, pH + pOH =14.(3) ( ) solutions: [H+] = 1.0×10–7 M, pH=7.00 A: acidic B: basic C: neutral
12.At 25°C, Kw=Kc= [H+] [OH–] = 1.0 ×10–14, pH + pOH =14.(3) ( ) solutions: [H+] = 1.0×10–7 M, pH=7.00 A: acidic B: basic C: neutral