Phenolic compounds are secondary metabolites synthesized through the shikimic acid and phenylpropanoid pathways.（）

Some nuclear receptor proteins may be activated by intracellular metabolites rather than by secreted signal molecules.

Which of the following is the synthesized metabolites of bacterium A: indole B: H2S C: pyrogen D: methyl red

Which of the following is the main product generated by fueling reactions? A: reducing power B: ATP C: precursor metabolites D: all of the above

Which of the following is not the cause of cell death at death phase? A: production of antibiotics; B: toxic metabolites accumulation. C: autolytic enzymes; D: the nutrients exhaustion;

The following metabolites are involved in both the TCA cycle and the glyoxylate cycle except: A: citric acid B: succinate acid C: fumaric acid D: malic acid

​以下哪种是产能反应的主要产物？‎​‎ A: reducing power 还原力 B: ATP C: precursor metabolites 代谢前体物 D: 所有答案均正确

以下哪种是产能反应的主要产物？ A: reducing power 还原力 B: ATP C: precursor metabolites 代谢前体物 D: 所有答案均正确

The main causes of metabolic acidosis caused by diarrhea in children are as follows: A: Diarrhea loss of alkaline substances B: Hungry ketosis C: Increased production of acid metabolites D: Renal acidolysis E: None of the above

Nefazodone is prone to be oxidized and metabolized to produce toxic metabolites. Which of the following strategies are used by scientists to optimize its structure and reduce liver toxicity A: F atom closes metabolic sites B: Benzene ring replaced with pyrimidine ring C: Increase metabolic site steric hindrance D: Introduce metabolizing sites to change metabolic pathways