Km is defined as A: Substrate concentration at maximum velocity B: Substrate concentration at half the maximum velocity C: Enzyme concentration D: Optimum temperature

In _____, Fischer proposed a lock-and-key analogy for enzyme–substrate interactions.

In general, a small KM indicates that a substrate binds very tightly to the enzyme, and a large KM indicates weak binding.

For an N-type MOSFET, in order to guarantee the device working properly, the substrate potential should be equal to or lower than the source potential.

Which of the following is not the curing method of adhesive? A: Anaerobic environment B: Loss of solvent C: Pressure on substrate D: Cooling of hot melt

Simulation and experimental studies _____, which show that the axial ratio bandwidth of the antenna is directly proportional to the thickness of the substrate.? have been performed|;is performed;;|was performed;;|were performed;

For an N-type MOSFET, in order to guarantee the device working properly, the substrate potential should be equal to or lower than the source potential. A: 正确 B: 错误

以下属于生化通路的组成部分的是？? enzymes 酶|the end product 终产物|所有选项均正确|the substrate 底物

The<br/>main way to generate ATP in body is ( ) A: Creatine<br/>phosphorylation B: oxidative<br/>phosphorylation C: Phosphorylation<br/>of sugar D: substrate<br/>level Phosphorylation E: Decarboxylation<br/>of organic acids

Which of the following options is not a feature of active transportation?( ) A: Need the assistance of substrate specific carrier protein on cell membrane B: Nutrients are transported from high concentration to low concentration C: The molecular structure of the transported substance does not change D: Need ATP