The four elements that make up the bulk of all living things are:

Question

BlackTom AI · Accepted Answer

Consider the question: 'The four elements that make up the bulk of all living things are:' This asks us to identify the primary elements that constitute the majority of biomolecules in organisms.
Option 1: 'Carbon, hydrogen, oxygen, and nitrogen' This is the standard quartet often cited as the most abundant elements in living matter (often referred to as CHON). They form the backbone of organic molecules like carbohydrates, proteins, lipids, and nucleic acids. This answer aligns with fundamental biology knowledge.
Option 2: 'Hydrogen, nitrogen, sodium, and carbon' While hydrogen, nitrogen, and carbon are indeed major elements, sodium is a trace or electrolyte with much lower abundance in organic matter, not part of the bulk composition. This makes the option inaccurate as a description of the four primary elements.
Option 3: 'Oxygen, calcium, iron, and nitrogen' Although oxygen and nitrogen are major elements, calcium and iron are present primarily as minerals or cofactors in smaller amounts, not among the bulk majority of living matter. This combination does not reflect the overall elemental composition of organisms.
Option 4: 'Carbon, hydrogen, iron, and calcium' Carbon and hydrogen are essential, but iron and calcium are not among the four most abundant elements in living organisms; they appear in specific roles (e.g., iron in proteins like hemoglobin, calcium in bones and signaling) but not as bulk constituents. Therefore, this option is not correct as a blanket statement about the major elements.

NUTR 200 A Units 1 & 2 Quiz

The four elements that make up the bulk of all living things are:

查看解析

登录即可查看完整答案

类似问题

Which of the following is a major element of life?

Which of the following includes all the major elements of life?

Life as we know it requires what four elements?

All living organisms contain carbon, nitrogen, and phosphorus.

What are the six most fundamental elements in the molecular building blocks of life?

Which of the following includes all the major elements of life?

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

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