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

Which type of molecules combine to make up the protein portion of hemoglobin?

Monosaccharides

Amino acids

Fatty acids

Nucleotides

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Verified step by step guidance

Understand the structure of hemoglobin: Hemoglobin is a protein, and proteins are composed of smaller building blocks called amino acids. These amino acids are linked together by peptide bonds to form polypeptide chains.

Eliminate incorrect options: Monosaccharides are carbohydrates, fatty acids are components of lipids, and nucleotides are the building blocks of nucleic acids. None of these are involved in forming the protein portion of hemoglobin.

Focus on the correct option: Amino acids are the fundamental units that combine to form proteins, including hemoglobin. Each amino acid has an amino group (-NH₂), a carboxyl group (-COOH), and a unique side chain (R group) that determines its properties.

Relate to hemoglobin's structure: Hemoglobin consists of four polypeptide chains (two alpha and two beta chains), each made up of amino acids. These chains are folded into a specific three-dimensional structure to perform their function in oxygen transport.

Conclude the explanation: The protein portion of hemoglobin is made up of amino acids, which are the building blocks of all proteins. This is why the correct answer is 'Amino acids'.