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

Proteins

Biochemistry

1. Introduction to Biochemistry

Proteins

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Multiple Choice

Iron-containing proteins that form parts of the electron transport chain are called:

Collagens

Cytochromes

Albumins

Hemoglobins

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Verified step by step guidance

Understand the context: The electron transport chain (ETC) is a series of protein complexes and molecules located in the inner mitochondrial membrane that facilitate the transfer of electrons to generate ATP during cellular respiration.

Identify the role of iron-containing proteins: Iron is often found in proteins that participate in redox reactions, as it can alternate between oxidation states (Fe²⁺ and Fe³⁺), making it ideal for electron transfer processes.

Recall the specific iron-containing proteins in the ETC: Cytochromes are a class of proteins that contain heme groups with iron atoms. These proteins are integral to the electron transport chain, where they transfer electrons between complexes.

Eliminate incorrect options: Collagens are structural proteins, albumins are transport proteins in the blood, and hemoglobins are oxygen-carrying proteins in red blood cells. None of these are involved in the electron transport chain.

Conclude that the correct answer is cytochromes, as they are iron-containing proteins specifically involved in the electron transport chain.