In the interdependent pathways in metabolism, _____ enzymes are predominant.

Question

BlackTom AI · Accepted Answer

Question restatement: In the interdependent pathways in metabolism, _____ enzymes are predominant.

Option 1 - proteolytic: Proteolytic enzymes are enzymes that hydrolyze peptide bonds, typically involved in digestion or protein turnover. They are not characterized by being predominant in interdependent metabolic pathways; their primary role is catalysis of proteolysis, not regulation within metabolic flux networks. This makes this option unlikely as the best descriptor of predominance in metabolic pathway interdependence.

Option 2 - reversible: While many metabolic reactions are reversible, this descriptor refers to the directionality of the reaction under given conditions rather than the regulatory class of enzymes involved in interdependent pathways. Being reversible describes reaction kinetics more than the general regulator type, so it does not specifically identify the predominant enzyme class in interdependent metabolism.

Option 3 - trimeric: Trimeric describes quaternary structure (three subunits) of some enzymes. Although structural organization can influence enzyme properties, there is no universal claim that most enzymes in interdependent metabolic pathways are trimeric. This structural attribute is not a defining characteristic of predominance in interdependent metabolic regulation.

Option 4 - high Km: Km indicates substrate affinity; enzymes with high Km require higher substrate concentration for half-maximal activity. Again, this is a kinetic parameter for individual enzymes and not a general category that predominates across interdependent metabolic pathways. It does not capture a broad regulatory class.

Option 5 - allosteric: Allosteric enzymes are regulated by effectors (activators or inhibitors) at sites other than the active site, enabling fine-tuned control of metabolic flux across pathways. In many interdependent metabolic networks, key control points are governed by allosteric regulation, allowing coordinated responses to cellular states. This makes allosteric enzymes the most conceptually appropriate and widely recognized descriptor for predominance in interdependent metabolism.

Summary of reasoning for each option: The first four options describe proteolytic function, reaction reversibility, structural oligomerization, or kinetic affinity, none of which universally characterize the predominant enzymes guiding interdependent metabolic pathways. In contrast, allosteric regulation is a central mechanism enabling integration and coordination of flux across interconnected metabolic routes, aligning with the notion of predominance in such networks.

In the interdependent pathways in metabolism, _____ enzymes are predominant.

查看解析

登录即可查看完整答案

类似问题

In the interdependent pathways in metabolism, _____ enzymes are predominant.

Aspartate transcarbamoylase (ATCase) is an example of an allosteric enzyme. Which of the following is TRUE of ATCase?

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单