Textbook Question
What causes acetone to be present in the breath of someone with uncontrolled diabetes?
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Ch.24 Lipid Metabolism
McMurry8th EditionFundamentals of GOBISBN: 9780134015187
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Table of contents
- 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
Chapter 24, Problem 64
Consuming too many carbohydrates causes deposition of fats in adipose tissue. How does this happen?
Verified step by step guidance1
Carbohydrates consumed in excess are broken down into glucose during digestion. This glucose enters the bloodstream, increasing blood sugar levels.
The pancreas responds to elevated blood sugar levels by releasing insulin, a hormone that facilitates the uptake of glucose into cells for energy or storage.
When the energy needs of the body are met, excess glucose is converted into glycogen and stored in the liver and muscles. However, the storage capacity for glycogen is limited.
Once glycogen storage is full, any additional glucose is converted into fatty acids through a process called lipogenesis. These fatty acids are then assembled into triglycerides.
Triglycerides are transported to adipose tissue, where they are stored as fat, leading to the deposition of fats in the body when carbohydrate intake exceeds energy expenditure.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Carbohydrate Metabolism
Carbohydrate metabolism refers to the biochemical processes that convert carbohydrates into energy. When carbohydrates are consumed, they are broken down into glucose, which is used for immediate energy or stored as glycogen in the liver and muscles. If carbohydrate intake exceeds the body's energy needs, the excess glucose is converted into fatty acids through a process called lipogenesis.
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Lipogenesis
Lipogenesis is the metabolic process through which excess carbohydrates are converted into fat for storage. This occurs primarily in the liver and adipose tissue when there is an abundance of glucose. The fatty acids produced are then combined with glycerol to form triglycerides, which are stored in adipose tissue, leading to increased fat deposition.
Adipose Tissue Function
Adipose tissue is a type of connective tissue that stores energy in the form of fat and plays a crucial role in regulating metabolism. It serves as an energy reserve, insulates the body, and protects vital organs. When excess carbohydrates are converted to fat, adipose tissue expands, leading to increased fat storage and potential weight gain.
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Related Practice
Textbook Question
Name the starting material for fatty acid synthesis.
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Textbook Question
How many rounds of the lipogenesis cycle are needed to synthesize stearic acid, C17H35COOH?
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Textbook Question
Why are extra calories consumed as carbohydrates stored as fat and not as glycogen?
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Textbook Question
Lipoproteins that transport lipids from the diet are described as exogenous. Those that transport lipids produced in metabolic pathways are described as endogenous. Which of the following lipoproteins transports exogenous lipids and which transports endogenous lipids?
a. Low-density lipoprotein (LDL)
b. Chylomicrons
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Textbook Question
High blood-cholesterol levels are dangerous because of their correlation with atherosclerosis and consequent heart attacks and strokes. Is it possible to eliminate all cholesterol from the bloodstream by having a diet that includes no cholesterol? Is it desirable to have no cholesterol at all in your body? Explain your answer.
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