Nutrition: Concepts and Controversies
13th Edition
ISBN: 9781133603184
Author: Frances Sizer, Ellie Whitney
Publisher: Cengage Learning
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Chapter 5, Problem 11SC
Summary Introduction
To determine:
If chylomicrons are a class of lipoprotein produced in the liver.
Introduction:
The chylomicrons are small molecule made up of fat and some proteins. The basic function of chylomicrons is to transport triglycerides throughout the body. They consist of cholesterol and proteins which travels towards the liver from the enterocytes.
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Chapter 5 Solutions
Nutrition: Concepts and Controversies
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- If the fat in whole milk is ingested: a. the stomach, with its high pH, will stimulate cells of the duodenum to hasten stomach emptying. b. parietal cells in the stomach will absorb it. c. in the small intestine, bile salts emulsify the fats and then lipase hydrolyzes them. d. lactase deficiency in the small intestine would prevent its digestion. e. microvilli will absorb the fat in the form of chylomicrons directly into the blood of the hepatic portal vein.arrow_forwardLipids are transported from the intestine to the liver by (a) chylomicrons (b) HDLs (c) LDLs (d) glycerol transporters (e) leptinarrow_forwardSelect the statement that is NOT correct O Most plasma lipoproteins are synthesised in the liver O The enzymatic complement of liver tissue changes in response to changes in the diet The liver synthesises most of the urea produced in the body The presence of glucose-6-phosphatase makes the liver uniquely able to release glucose into the bloodstream O Under certain conditions, other organs can perform most of the functions of the liverarrow_forward
- please explain this picture topic is about protein digestionarrow_forwardI want to solve part 7 and part 8 and 9 and 10arrow_forwardSuppose i want to whitening my teeth. For this i want to make an organic formula for this. Now what is the process or how i can whitening my teeth without any chemical? Please answer shorty at your own easy words.arrow_forward
- The stomach has two types of exocrine secretory cells: chief cells that secrete an inactive form of a protein-digesting enzyme, pepsinogen parietal cells that secrete hydrochloric acid (HCl), which activates pepsinogen Both these cell types have an abundance of mitochondria for ATP production - the chief cells for the energy needed needed to synthesize pepsinogen, the parietal cells for the energy needed to transport H+ and Cl- from the blood into the stomach lumen. But only one of these cell types also has an extensive rough endoplasmic reticulum and abundant Golgi stacks. Explain which cell type would have extensive rough ER and Golgi stacks and why. Also explain which cell type would not have as extensive a rough ER and Golgi stacks and why.arrow_forwardWhen William H. was helping victims after a devastating earthquake in a region not prepared to swiftly set up adequate temporary shelter, he developed severe diarrhea. He was diagnosed as having cholera, a disease transmitted through unsanitary water supplies contaminated by fecal material from infected indiv iduals. The toxin produced by cholera bacteria causes Cl- channels in the lurninal membranes of the intestinal cells to stay open, thereby increasing the secretion of Cl- from the cells into the intestinal tract lumen. By what mechanisms would Na+ and water be secreted into the lumen in conjunction with Cl- secretion? How does this secretory response account for the severe diarrhea that is characteristic of cholera?arrow_forwardWatch this animation (http://openstaxcollege.org/l/sintestine) that depicts the structure of the small intestine, and, in particular, the villi. Epithelial cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems. In the small intestine, the products of food digestion are absorbed by different structures in the villi. Which structure absorbs and transports fats?arrow_forward
- The stomach has two types of exocrine cells, chief cell which secrete an inactive form of the protein degesting enzymes pepsinogen, and parietal cells , which secrete hydrochloric acid that activates pepsinogen.Both cell types have an abundance of mitochondria ATP production.The chief cells need energy to synthesise pepsinogen and parietal cells need energy to transport hydrogen ions and chloride ions from the blood into the stomach lumen.Only one of this cell types has an extensive roung endoplasmic and abandant Golgi stacks. Would this be the chief cells or parietal cells?why?arrow_forwardASAParrow_forwardIf someone stops ingesting vitamin B12, what would you expect to happen O A deficiency syndrome would develop of a period of a few years, depending on body stores Effects of low vitamin B12 will be observable in a matter of weeks, since it is a water-soluble vitamin There will be no effect, because gut bacteria can synthesize this vitamin for us O Scurvy will arise after a long period of time as body stores are gradually depletedarrow_forward
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