Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

1. Introduction to Biochemistry

Functional Groups

Biochemistry

1. Introduction to Biochemistry

Functional Groups

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Multiple Choice

Which of the following elements is found in all organic compounds due to its presence in functional groups?

Phosphorous

Calcium

Nitrogen

Carbon

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Verified step by step guidance

Understand the definition of organic compounds: Organic compounds are molecules primarily composed of carbon atoms bonded to hydrogen, oxygen, nitrogen, or other elements. Carbon is the backbone of all organic molecules.

Recognize the role of carbon in functional groups: Functional groups are specific groups of atoms within molecules that determine the chemical properties of those molecules. Carbon is always present in these groups as it forms the structural framework.

Compare the elements listed in the question: Phosphorus, calcium, and nitrogen are important in biochemistry but are not universally present in all organic compounds. Carbon, however, is essential and found in every organic molecule.

Recall examples of organic compounds: Molecules like carbohydrates, lipids, proteins, and nucleic acids all contain carbon as a fundamental component.

Conclude that carbon is the correct answer: Carbon is the defining element of organic chemistry and is present in all organic compounds due to its ability to form stable covalent bonds and complex structures.