The main constituents of living matter are carbon compounds. Which of these compounds is not a carbon based compound that is important to life.

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The question asks which compound is not a carbon-based one that is important to life, despite carbon compounds being the main constituents of living matter.
Option 1: DNA. This is a carbon-based macromolecule composed of nucleotides; its backbone and side chains rely on carbon, hydrogen, oxygen, nitrogen, and phosphorus, making it a classic example of a carbon-containing biomolecule essential to genetic information storage and transmission.
Option 2: Proteins. Proteins are also carbon-based, built from amino acids that contain carbon in their backbone and side chains; they perform a wide range of functions from catalysis to structure, all relying on carbon-containing chemistry.
Option 3: Glucose. Glucose is a simple sugar that is a carbon-based molecule (C6H12O6). It plays a central role in energy metabolism and is a fundamental carbon source for many biological processes.
Option 4: Water. Water is H2O and contains no carbon; it is inorganic. Although absolutely vital for life, it is not a carbon-containing compound and therefore does not fit the definition of a carbon-based compound important to life in the chemical sense.
Option 5: RNA. Like DNA, RNA is a carbon-based polymer formed from ribonucleotides and is essential for coding, decoding, regulation, and expression of genes in cells.
In summary, four of the options (DNA, proteins, glucose, RNA) are carbon-based biomolecules central to living systems, while water is not carbon-based, though it is indispensable for life processes.

CHEM 110 Section 3 (PM) SP25 Pre-Lecture 22 Quiz C10-1-2

The main constituents of living matter are carbon compounds. Which of these compounds is not a carbon based compound that is important to life.

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CHEM 110 Section 3 (PM) SP25 Pre-Lecture 22 Quiz C10-1-2

The main constituents of living matter are carbon compounds. Which of these compounds is not a carbon based compound that is important to life.

查看解析

登录即可查看完整答案

类似问题

Which of these are classes of biological molecules?

Which of these is the largest molecule?

Which of these is the largest molecule?

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糖是 __________ 的一个例子，而 DNA 是 __________ 。 Un azúcar es un ejemplo de __________, mientras que el ADN es un __________.

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

更多留学生实用工具

希望你的学习变得更简单

糖是的一个例子，而 DNA 是。 Un azúcar es un ejemplo de , mientras que el ADN es un .