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Ch. 2 Basic Chemistry
Marieb - Essentials of Human Anatomy & Physiology 13th Edition
Marieb13th EditionEssentials of Human Anatomy & PhysiologyISBN: 9780135624340Not the one you use?Change textbook
All textbooksMarieb 13th EditionCh. 2 Basic ChemistryProblem 13
Chapter 2, Problem 13

Name and provide the atomic symbols of the four elements that make up the bulk of all living matter. Which of these is found primarily in proteins and nucleic acids?

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Identify the four elements that make up the bulk of all living matter. These are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).
Understand the role of each element: Carbon is the backbone of organic molecules, hydrogen is involved in energy transfer and pH balance, oxygen is essential for cellular respiration, and nitrogen is a key component of amino acids and nucleotides.
Recognize that nitrogen is the element found primarily in proteins and nucleic acids. Proteins are made of amino acids, which contain nitrogen in their amino groups (-NH2). Nucleic acids (DNA and RNA) contain nitrogen in their nitrogenous bases (adenine, guanine, cytosine, thymine, and uracil).
Learn the significance of nitrogen in biological molecules: Nitrogen is crucial for the structure and function of proteins and nucleic acids, which are essential for cellular processes such as enzyme activity and genetic information storage.
Review the atomic symbols: Carbon (C), hydrogen (H), oxygen (O), and nitrogen (N) are the four elements, with nitrogen being the one primarily associated with proteins and nucleic acids.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Elements of Life

The four elements that make up the bulk of all living matter are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N). These elements are fundamental to the structure and function of biological molecules, forming the backbone of organic compounds essential for life.
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Elements of Life

Atomic Symbols

Atomic symbols are one- or two-letter abbreviations used to represent chemical elements on the periodic table. For example, carbon is represented by 'C', hydrogen by 'H', oxygen by 'O', and nitrogen by 'N'. These symbols are universally recognized in scientific communication.
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Atomic Properties

Proteins and Nucleic Acids

Proteins and nucleic acids (DNA and RNA) are crucial macromolecules in living organisms. Nitrogen is primarily found in proteins and nucleic acids, as it is a key component of amino acids (the building blocks of proteins) and nucleotides (the building blocks of nucleic acids).
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Nucleic Acids
Related Practice
Textbook Question

Define radioactivity. If an element has three isotopes, which of them (the lightest, the one with an intermediate mass, or the heaviest) is most likely to be a radioisotope, and why?

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Textbook Question

Factors that increase the speed of chemical reactions include:

a. Increasing the temperature

b. Increasing the particle size

c. Increasing the concentration of the reactants

d. Catalysts

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Textbook Question

Matter occupies space and has mass. Explain how energy must be described in terms of these two factors. Then define energy.

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Textbook Question

Which of the following forms the basic structure of cell membranes?

Which is the basis for producing sex hormones?

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Textbook Question

Describe how the two 'generic' atoms shown below would form an ionic bond. Include in your answer where electrons come from, where they go, and why.

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Textbook Question

Define molecule as it relates to molecular substances and compounds.

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