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Chapter 5: Problem 8

Carbohydrates contain the elements carbon, hydrogen, and ..8..

Short Answer

Expert verified
The missing element in carbohydrates is oxygen.

Step by step solution

01

Identify Elements in Carbohydrates

Carbohydrates are organic compounds, which typically contain carbon, hydrogen, and oxygen. They are a major class of biomolecules essential for life.
02

Understand the Basic Composition

The general chemical formula for carbohydrates is \( {C}m({H}2{O})n \), indicating that they are hydrates of carbon with a fixed ratio of hydrogen to oxygen similar to water.
03

Fill in the Missing Element

With the known elements carbon and hydrogen present, identify that the third element completing the common carbohydrate composition is oxygen.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Biomolecules
Biomolecules are essential to all living organisms. They include a vast range of substances such as carbohydrates, proteins, lipids, and nucleic acids. Carbohydrates are one of the primary types of biomolecules, playing critical roles like providing energy and structural support.
For example, glucose is a carbohydrate that serves as an energy source for cells. Biomolecules are typically large and complex, made up of smaller units called monomers that combine to form polymers.
Understanding biomolecules is key to comprehending how living organisms function and survive.
Chemical Composition
The chemical composition of a substance refers to the identity and quantity of the elements that make it up.
For carbohydrates, the elements involved are carbon, hydrogen, and oxygen. These elements combine to form a specific chemical structure that is common among all carbohydrates.
  • Each carbohydrate molecule typically follows the formula \( {C}_m({H}_2{O})_n \).
  • This denotes that for every carbon atom, there are two hydrogen atoms and one oxygen atom, akin to the composition of water, where two hydrogen atoms bond with one oxygen atom.
Therefore, carbohydrates are considered hydrates of carbon, with an arrangement that is crucial for their function in biological processes.
Organic Compounds
Organic compounds are chemical compounds that contain carbon, and they typically form the basis of living matter.
Carbohydrates are a specific category of organic compounds, characterized by their carbon-hydrogen-oxygen composition. The presence of carbon is what distinguishes organic compounds from inorganic compounds.
Not only do carbohydrates help in energy storage and provision, but they also serve the structural roles in cells and tissues, reinforcing the importance of organic compounds in biology.
  • Carbon is the backbone of organic molecules.
  • The flexibility of carbon to form bonds with many elements, including itself, allows for a wide variety of complex molecules.
This variability and complexity enable organic compounds to fulfill diverse biological functions, necessary for sustaining life.

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