Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

23. Lipids

Triacylglycerols

GOB Chemistry

23. Lipids

Triacylglycerols

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Problem 30a

Textbook Question

For each of the conjugated proteins described, identify to which class of conjugated protein it belongs.
a. Cholesterol is attached to this protein in order to move through the blood system.

Verified step by step guidance

Step 1: Understand the concept of conjugated proteins. Conjugated proteins are proteins that are combined with a non-protein component, called a prosthetic group. The type of prosthetic group determines the class of the conjugated protein.

Step 2: Identify the prosthetic group in the given problem. In this case, cholesterol is attached to the protein. Cholesterol is a lipid molecule.

Step 3: Recall the classification of conjugated proteins. Proteins are classified based on their prosthetic group. For example, lipoproteins have lipids as their prosthetic group, glycoproteins have carbohydrates, and metalloproteins have metal ions.

Step 4: Match the prosthetic group (cholesterol, a lipid) to the appropriate class of conjugated protein. Since cholesterol is a lipid, the protein belongs to the class of lipoproteins.

Step 5: Conclude that the protein described in the problem is a lipoprotein, as it has cholesterol (a lipid) attached to it to facilitate its movement through the blood system.

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Key Concepts

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

Conjugated Proteins

Conjugated proteins are proteins that are covalently bonded to a non-protein group, known as a prosthetic group. These groups can be carbohydrates, lipids, or metal ions, and they play a crucial role in the protein's function. Understanding the nature of these attachments is essential for classifying the protein and determining its biological role.

Lipoproteins

Lipoproteins are a class of conjugated proteins that consist of proteins and lipids, such as cholesterol. They are essential for transporting lipids through the bloodstream, as lipids are not soluble in water. The classification of lipoproteins is based on their density and composition, which influences their function in lipid metabolism and cardiovascular health.

Cholesterol Transport

Cholesterol transport refers to the mechanisms by which cholesterol is moved through the bloodstream, primarily via lipoproteins. This process is vital for maintaining cellular function and membrane integrity. Understanding how cholesterol is conjugated to proteins helps in identifying the specific class of conjugated protein involved in its transport, such as low-density lipoproteins (LDL) or high-density lipoproteins (HDL).

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Draw a skeletal structure of a triglyceride with linolenic acid (C1) and 2 palmitoleic acids. State whether it would have high or low melting point.

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