Effects of Fiber Fermentation on Colonic Health
25 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the major energy source for colonocytes?

  • Insoluble fibers
  • Propionate
  • Butyrate (correct)
  • Acetate
  • Which fiber type binds carcinogens, minimizing interactions with colonic mucosal cells?

  • Starch
  • Lignin (correct)
  • Soluble fibers
  • Propionate
  • Which fatty acid slows the proliferation and enhances differentiation of colon cancer cells?

  • Propionate
  • Acetate
  • Butyric acid (correct)
  • Fiber fermentation
  • What decreases synthesis of secondary bile acids by lowering luminal pH?

    <p>Dietary fibers</p> Signup and view all the answers

    Which fatty acid is largely taken up by the liver?

    <p>Propionate</p> Signup and view all the answers

    Which type of fiber is found in legumes, prunes, and apricots?

    <p>Soluble fiber</p> Signup and view all the answers

    Which alternative sweetener is 7000–13,000 times sweeter than sugar?

    <p>Neotame</p> Signup and view all the answers

    Which insoluble fiber source is listed in the text?

    <p>Wheat bran</p> Signup and view all the answers

    Which alternative sweetener was sold under the name 'Splenda'?

    <p>Sucralose</p> Signup and view all the answers

    What complex polymers of mixed monosaccharides are found in seaweeds and other algae?

    <p>Agar</p> Signup and view all the answers

    What is the recommended consensus for energy intake from carbohydrates, fat, and protein?

    <p>55% energy from carbohydrates, 30% from fat, 15% from protein</p> Signup and view all the answers

    What is the main function of carbohydrates in the body?

    <p>Source of metabolic fuel and energy stores</p> Signup and view all the answers

    During starvation or absence of carbohydrates in the diet, what does the body break down for energy production?

    <p>Fat</p> Signup and view all the answers

    Which statement best describes the relationship between dietary fat and risk of diseases?

    <p>Diets with over 35-40% energy from fat are associated with increased risk of heart disease and some cancers.</p> Signup and view all the answers

    What does the statement 'fat burns in a CHO flame' imply?

    <p>Carbohydrates are essential for the breakdown of fats.</p> Signup and view all the answers

    What is the role of butyrate in promoting differentiation, cell-cycle arrest, and apoptosis of transformed colonocytes?

    <p>Inhibiting the enzyme histone deacetylase</p> Signup and view all the answers

    Which enzyme is often aberrantly active in cancers and is inhibited by butyrate?

    <p>Histone deacetylase</p> Signup and view all the answers

    How does butyrate decrease the transformation of primary to secondary bile acids?

    <p>By increasing the pH of the colon</p> Signup and view all the answers

    Which component of breast milk enhances the infant's ability to develop a desirable intestinal bacterial flora?

    <p>Prebiotic oligosaccharides</p> Signup and view all the answers

    Which non-starch polysaccharide cannot be hydrolyzed by human enzymes?

    <p>Cellulose</p> Signup and view all the answers

    What is the definition of Glycemic Index?

    <p>The effect of 50g of carbohydrates in a particular food on blood glucose levels</p> Signup and view all the answers

    What is the main difference between Glycemic Index and Glycemic Load?

    <p>Glycemic Load considers the amount of carbohydrates in a standard serving, while Glycemic Index does not.</p> Signup and view all the answers

    Which type of fiber cannot be digested by the human body?

    <p>Insoluble fiber</p> Signup and view all the answers

    What is the main characteristic of soluble fiber?

    <p>It forms viscous solutions in water and can be broken down by intestinal bacteria</p> Signup and view all the answers

    What is the function of Functional fiber?

    <p>It has beneficial effects in humans</p> Signup and view all the answers

    More Like This

    Fiber Crossword Review Chapter 4
    69 questions
    Fiber Analysis Forensics Review
    15 questions
    Use Quizgecko on...
    Browser
    Browser