Domanda del libro di testo
Identify each lipoprotein described here as either chylomicron, HDL, LDL, or VLDL.
d. Which lipoprotein contains “bad cholesterol” from a vascular disease risk standpoint?
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Ch.24 Lipid Metabolism
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
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TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187Non è quello che usi tu?Cambia libro di testo
Capitolo 24, Problema 12a
Identify each lipoprotein described here as either chylomicron, HDL, LDL, or VLDL.
a. Which lipoprotein has the lowest density? Why?
Guida verificata passo dopo passo1
Step 1: Understand the concept of lipoproteins. Lipoproteins are complexes made of lipids and proteins that transport lipids through the bloodstream. They are classified based on their density: chylomicrons, very-low-density lipoproteins (VLDL), low-density lipoproteins (LDL), and high-density lipoproteins (HDL).
Step 2: Recall the relationship between density and lipid/protein content. Lipoproteins with a higher lipid content and lower protein content have lower densities, while those with a higher protein content and lower lipid content have higher densities.
Step 3: Identify the lipoprotein with the lowest density. Chylomicrons have the lowest density because they contain the highest proportion of triglycerides (lipids) and the lowest proportion of proteins.
Step 4: Explain why chylomicrons have the lowest density. The high lipid-to-protein ratio in chylomicrons makes them less dense, as lipids are less dense than proteins.
Step 5: Conclude that the lipoprotein with the lowest density is the chylomicron, and this is due to its high lipid content and low protein content.
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Lipoprotein Classification
Lipoproteins are complexes of lipids and proteins that transport fats through the bloodstream. They are classified into several categories based on their density and composition, including chylomicrons, HDL (high-density lipoprotein), LDL (low-density lipoprotein), and VLDL (very low-density lipoprotein). Each type plays a distinct role in lipid metabolism and cardiovascular health.
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Percorso guidato
3:52
Lipoproteins for Transport Concept 2
Density of Lipoproteins
The density of lipoproteins is determined by their lipid-to-protein ratio. Chylomicrons have the lowest density because they contain a high proportion of triglycerides and a relatively low amount of protein. In contrast, HDL has the highest density due to its higher protein content, which is crucial for its role in reverse cholesterol transport.
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Percorso guidato
3:52Lipoproteins for Transport Concept 2
Role of Chylomicrons
Chylomicrons are lipoproteins formed in the intestines after the ingestion of dietary fats. They transport triglycerides and cholesterol from the intestines to other tissues in the body. Due to their large size and high triglyceride content, they are the least dense lipoproteins, making them essential for the initial transport of dietary lipids.
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Percorso guidato
2:48Digestion of Lipids Concept 1
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