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

3. Amino Acids

Amino Acid Groups

Biochemistry

3. Amino Acids

Amino Acid Groups

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which type of amino acid deficiency is most commonly associated with the development of macrocytic anemia?

Deficiency of essential amino acids involved in nucleotide synthesis, such as methionine

Deficiency of sulfur-containing amino acids, such as cysteine

Deficiency of aromatic amino acids, such as phenylalanine

Deficiency of branched-chain amino acids, such as leucine

Previous problemNext problem

Verified step by step guidance

Understand the context of macrocytic anemia: Macrocytic anemia is characterized by the presence of abnormally large red blood cells and is often linked to impaired DNA synthesis, which affects cell division.

Identify the biochemical connection: DNA synthesis requires nucleotides, and the production of nucleotides depends on essential amino acids like methionine. Methionine is involved in the synthesis of S-adenosylmethionine (SAM), a key methyl donor in nucleotide synthesis.

Evaluate the role of sulfur-containing amino acids: Sulfur-containing amino acids like methionine and cysteine are critical for various metabolic processes, but methionine specifically plays a direct role in nucleotide synthesis, which is essential for red blood cell production.

Exclude other amino acid categories: Aromatic amino acids (e.g., phenylalanine) and branched-chain amino acids (e.g., leucine) are important for protein synthesis and energy metabolism but are not directly involved in nucleotide synthesis or the development of macrocytic anemia.

Conclude the deficiency type: Based on the biochemical role in nucleotide synthesis, the deficiency of essential amino acids like methionine is most commonly associated with macrocytic anemia.