Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

2. Cell Chemistry & Cell Components

Proteins

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Proteins

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Problem 16d

Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Proteins are composed of strings of fatty acids linked by glycosidic bonds.

Verified step by step guidance

Step 1: Analyze the statement: 'Proteins are composed of strings of fatty acids linked by glycosidic bonds.' Proteins are macromolecules, so we need to identify their correct building blocks and bonds.

Step 2: Recall that proteins are composed of amino acids, not fatty acids. Amino acids are the monomers that form proteins.

Step 3: Understand the type of bond that links amino acids together. Amino acids are linked by peptide bonds, not glycosidic bonds. Glycosidic bonds are found in carbohydrates, linking monosaccharides.

Step 4: Determine whether the statement is true or false. Based on the above information, the statement is false because it incorrectly identifies the building blocks and bonds of proteins.

Step 5: Correct the statement to make it true: 'Proteins are composed of strings of amino acids linked by peptide bonds.'

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Proteins

Proteins are large, complex molecules made up of long chains of amino acids. They play critical roles in the body, including catalyzing biochemical reactions, providing structural support, and regulating cellular processes. Unlike fats, proteins are not composed of fatty acids, but rather of amino acids linked by peptide bonds.

Fatty Acids

Fatty acids are carboxylic acids with long hydrocarbon chains, which are key components of lipids, including fats and oils. They are not involved in the structure of proteins. Instead, they serve as energy sources and are important for cell membrane structure. The linkage of fatty acids occurs through ester bonds, not glycosidic bonds.

Glycosidic Bonds

Glycosidic bonds are covalent bonds that link carbohydrates (sugars) together to form disaccharides and polysaccharides. They are formed between the hydroxyl group of one sugar and the anomeric carbon of another. This type of bond is not relevant to proteins, which are linked by peptide bonds, highlighting the distinction between carbohydrates and proteins.