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

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 of the following is a major element found in the proteins of eggs?

Chlorine (Cl)

Fluorine (F)

Iodine (I)

Sulfur (S)

Previous problemNext problem

Verified step by step guidance

Understand that proteins are composed of amino acids, which contain specific elements such as carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and sometimes sulfur (S). Sulfur is a key element in certain amino acids like cysteine and methionine.

Recognize that chlorine (Cl), fluorine (F), and iodine (I) are not typically found in the structure of amino acids or proteins. These elements are not involved in the primary composition of proteins.

Recall that sulfur (S) is a major element in proteins because it is present in the side chains of sulfur-containing amino acids, such as cysteine and methionine. These amino acids contribute to protein structure and function.

Understand the role of sulfur in forming disulfide bonds (S-S), which are covalent bonds that stabilize the three-dimensional structure of proteins, especially in egg proteins like ovalbumin.

Conclude that sulfur (S) is the correct answer because it is a major element found in the proteins of eggs, playing a critical role in their structure and stability.