Domanda del libro di testo
Name the starting reactant of glycolysis.
1314
views
Ch.12 Food as Fuel An Overview of Metabolism
Frost4th EditionGeneral, Organic and Biological ChemistryISBN: 9780134988696
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.4 Introduction to Organic Compounds75
- Ch.5 Chemical Reactions19
- Ch.6 Carbohydrates Life's Sweet Molecules62
- Ch.7 States of Matter and Their Attractive Forces8
- Ch.8 Solution Chemistry Sugar and Water Do Mix4
- Ch.10 Proteins Workers of the Cell89
- Ch.11 Nucleic Acids Big Molecules with a Big Role69
- Ch.12 Food as Fuel An Overview of Metabolism65
Frost4th EditionGeneral, Organic and Biological ChemistryISBN: 9780134988696Non è quello che usi tu?Cambia libro di testo
Capitolo 8, Problema 17
Describe how cholesterol is packaged after absorption in the intestine.
Guida verificata passo dopo passo1
After cholesterol is absorbed in the intestine, it is incorporated into micelles along with bile salts and other lipids to facilitate its transport across the intestinal wall.
Inside the intestinal cells (enterocytes), cholesterol is re-esterified to form cholesterol esters, which are more hydrophobic and suitable for packaging.
The re-esterified cholesterol is then combined with triglycerides, phospholipids, and proteins to form lipoprotein particles called chylomicrons.
Chylomicrons are released from the enterocytes into the lymphatic system via exocytosis, bypassing the liver initially and entering the bloodstream through the thoracic duct.
Once in the bloodstream, chylomicrons deliver cholesterol and other lipids to tissues for use or storage, completing the packaging and transport process.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
5mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Cholesterol Absorption
Cholesterol absorption occurs primarily in the small intestine, where dietary cholesterol is taken up by enterocytes (intestinal cells). This process involves specific transport proteins that facilitate the movement of cholesterol across the intestinal membrane, allowing it to enter the bloodstream.
Video consigliato:
Percorso guidato
2:11
Steroids Concept 3
Chylomicrons
After absorption, cholesterol is packaged into lipoproteins called chylomicrons. These large particles are formed in the enterocytes and consist of triglycerides, cholesterol, and proteins. Chylomicrons transport dietary lipids, including cholesterol, from the intestines to other tissues via the lymphatic system and bloodstream.
Video consigliato:
Percorso guidato
2:48Digestion of Lipids Concept 1
Lipoprotein Metabolism
Lipoprotein metabolism refers to the processes by which lipoproteins, including chylomicrons, are processed and utilized by the body. After entering circulation, chylomicrons deliver cholesterol and triglycerides to tissues, and remnants are eventually taken up by the liver, where cholesterol can be repackaged or excreted as bile.
Video consigliato:
Percorso guidato
3:52Lipoproteins for Transport Concept 2
Pratica correlata
Domanda del libro di testo
Indicate whether the statements below apply to the glucose-regulating hormone insulin or to glucagon:
(a) signals cells to take up glucose
537
views
Domanda del libro di testo
Name the end products for digestion of proteins.
1172
views
Domanda del libro di testo
Name a carbohydrate (if any) that undergoes digestion in each of the following sites:
c. small intestine
522
views
Domanda del libro di testo
Name a carbohydrate (if any) that undergoes digestion in each of the following sites:
a. mouth
578
views
Domanda del libro di testo
Using abbreviations (not structures), write the reaction of flavin adenine dinucleotide that gives off energy (–∆G) .
720
views