lesson 2
70 Questions
0 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 function of parietal cells in the stomach?

  • To secrete substances for chemical digestion
  • To secrete pepsinogen for protein digestion
  • To increase surface area for nutrient absorption
  • To produce hydrogen and chloride ions for hydrochloric acid production (correct)

    • What is the function of the stomach in the digestive system?

  • To chemically digest food (correct)
  • To mechanically digest food
  • To consolidate waste
  • To absorb nutrients

    • What are the three layers of smooth muscle tissue in the stomach responsible for?

  • Consolidation of waste
  • Absorption of nutrients
  • Mechanical digestion (correct)
  • Chemical digestion

    • Animals require ______ for energy and as building blocks of cells and tissues.

    <p>organic molecules</p> Signup and view all the answers

    What are the components of the plasma membrane?

    <p>Phospholipids, proteins, glycoproteins, glycolipids, and carbohydrates</p> Signup and view all the answers

    Which of the following is true about essential nutrients in animals?

    <p>They must be supplied by the diet.</p> Signup and view all the answers

    What are the three types of organic molecules that animals require for chemical energy and carbon?

    <p>Carbohydrates, lipids, and proteins</p> Signup and view all the answers

    Which of the following is the correct order of food processing in mammals?

    <p>Mechanical digestion in the oral cavity, nutrient absorption in the small intestine, chemical digestion in the mouth, waste consolidation in the large intestine</p> Signup and view all the answers

    Which nutrients are considered essential?

    <p>Essential amino acids, fatty acids, vitamins, and minerals</p> Signup and view all the answers

    Which organ receives secretions from the liver, gallbladder, and pancreas for digestion and absorption?

    <p>The small intestine</p> Signup and view all the answers

    What is the role of chief cells in the stomach?

    <p>To secrete pepsinogen for protein digestion</p> Signup and view all the answers

    What is the function of the duodenum in the small intestine?

    <p>Secretion of digestive enzymes</p> Signup and view all the answers

    Plasma membrane of a cell is composed of phospholipids, proteins, glycoproteins, glycolipids, and ______.

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

    What is the function of salivary glands in the digestive system?

    <p>To secrete substances for chemical digestion in the mouth</p> Signup and view all the answers

    What is the main purpose of the digestive system in animals?

    <p>To break down food to extract nutrients for the body's cells.</p> Signup and view all the answers

    What are essential amino acids?

    <p>Amino acids that humans cannot synthesize from other nutrients</p> Signup and view all the answers

    What is the primary function of the large intestine?

    <p>To reabsorb water and consolidate waste</p> Signup and view all the answers

    Which animal phylum lacks a digestive system?

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

    Which part of the small intestine is responsible for the majority of nutrient absorption?

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

    Which of the following is a feature of the stomach that aids in chemical digestion?

    <p>Three overlapping sheets of smooth muscle tissue</p> Signup and view all the answers

    How many essential amino acids are there?

    <p>9</p> Signup and view all the answers

    What is the role of the large intestine in digestion?

    <p>Water reabsorption</p> Signup and view all the answers

    Essential nutrients include essential amino acids, fatty acids, vitamins, and ______.

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

    What are essential fatty acids important for?

    <p>Phospholipids in cells and cognitive function</p> Signup and view all the answers

    Which type of digestion involves enzymes from the pancreas and epithelial cells to digest carbohydrates, proteins, and lipids?

    <p>Chemical digestion</p> Signup and view all the answers

    Which fatty acids are essential for the body?

    <p>Omega-3 and omega-6</p> Signup and view all the answers

    What is the function of bile in digestion?

    <p>To emulsify fats</p> Signup and view all the answers

    What are vitamins?

    <p>Essential nutrients that play important roles in cellular respiration and energy metabolism</p> Signup and view all the answers

    What is the function of villi in the small intestine?

    <p>To absorb water-soluble nutrients</p> Signup and view all the answers

    What is the primary function of the salivary glands?

    <p>Chemical digestion</p> Signup and view all the answers

    What is the function of the villi in the small intestine?

    <p>To increase surface area for nutrient absorption.</p> Signup and view all the answers

    9 amino acids are ______ and must be supplied by the diet.

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

    What aids in chemical digestion in the small intestine?

    <p>Pancreatic enzymes and bile</p> Signup and view all the answers

    What is the role of the pancreas in digestion?

    <p>Secretion of digestive enzymes</p> Signup and view all the answers

    How do water-soluble nutrients and fatty acids differ in their absorption in the small intestine?

    <p>Water-soluble nutrients cross into blood capillaries, while fatty acids enter lacteal vessels.</p> Signup and view all the answers

    What is the role of vitamins in the body?

    <p>Energy production</p> Signup and view all the answers

    Which of the following is an inorganic nutrient?

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

    What is the purpose of saliva in the digestive system?

    <p>To chemically digest food</p> Signup and view all the answers

    Omega-3 and omega-6 fatty acids are ______ for the body.

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

    What is pepsin?

    <p>A digestive enzyme produced by the stomach.</p> Signup and view all the answers

    Where do long-chain fatty acids enter after being absorbed in the small intestine?

    <p>Lacteal vessel</p> Signup and view all the answers

    What is the main function of the large intestine in digestion?

    <p>To reabsorb water</p> Signup and view all the answers

    Vitamins play a crucial role in energy metabolism and are either water-soluble or ______-soluble.

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

    What is the function of the ceca in herbivorous animals?

    <p>Bacterial digestion of fibrous plant material</p> Signup and view all the answers

    How do sponges digest food?

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

    What is the role of the ceca in herbivorous animals?

    <p>To aid in bacterial digestion of fibrous plant material</p> Signup and view all the answers

    Which organ secretes substances for chemical digestion in the stomach?

    <p>Gastric glands</p> Signup and view all the answers

    What is the function of minerals in the body?

    <p>Fluid balance, nerve impulse transmission, and cellular function</p> Signup and view all the answers

    What is the function of chylomicrons?

    <p>To transport lipids through the lymphatic system.</p> Signup and view all the answers

    What is the function of the stomach in the mammalian digestive system?

    <p>Chemical digestion</p> Signup and view all the answers

    What is the function of the large intestine in the digestive system?

    <p>To reabsorb water and consolidate waste for elimination</p> Signup and view all the answers

    How do sponges digest food?

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

    Minerals are ______ and essential for fluid balance, nerve impulse transmission, and cellular function.

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

    What is the microbiome?

    <p>The bacterial cells in the large intestine that interact with the human diet</p> Signup and view all the answers

    What is the primary nutrient absorbed in the lymphatic system?

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

    Which of the following is NOT a segment of the small intestine?

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

    What is the main difference between one-way and two-way digestive systems?

    <p>The presence of specialized compartments</p> Signup and view all the answers

    What is the main function of gastric glands in the stomach?

    <p>To secrete substances for chemical digestion</p> Signup and view all the answers

    Why are digestive issues difficult to diagnose and treat?

    <p>Due to the complexity of the human microbiome</p> Signup and view all the answers

    Which segment of the small intestine is responsible for the majority of nutrient absorption?

    <p>The jejunum</p> Signup and view all the answers

    What is the function of bile in digestion?

    <p>To emulsify fat for digestion and absorption</p> Signup and view all the answers

    Why are digestive issues difficult to diagnose and treat?

    <p>Because the digestive system is too complex</p> Signup and view all the answers

    Sponges lack a digestive system and digest food ______.

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

    Why are digestive issues difficult to diagnose and treat?

    <p>Because the human microbiome is computationally irreducible</p> Signup and view all the answers

    What is the function of the appendix in the digestive system?

    <p>To play a role in immune function</p> Signup and view all the answers

    What is the function of the liver in digestion?

    <p>To store bile</p> Signup and view all the answers

    How are long-chain fatty acids absorbed?

    <p>They are absorbed by chylomicrons</p> Signup and view all the answers

    What is the importance of the cecum in the digestive system of herbivores?

    <p>To aid in the digestion of plant material</p> Signup and view all the answers

    How are chylomicrons transported through the body?

    <p>Through the lymphatic system</p> Signup and view all the answers

    What is the difference between mechanical and chemical digestion?

    <p>Mechanical digestion involves breaking down food into smaller pieces, while chemical digestion involves breaking down food using enzymes.</p> Signup and view all the answers

    Study Notes

    1. The lesson covers animal nutrition and digestive organ systems.
    2. Three learning outcomes are: identifying nutrients animals seek out, comparing digestive system evolution across phyla, and describing the mammalian digestive system.
    3. Animals require organic molecules for chemical energy and carbon, obtained from carbohydrates, lipids, and proteins.
    4. Essential nutrients include essential amino acids, which humans cannot synthesize from other nutrients.
    5. Essential fatty acids, like omega-3 and omega-6, are important for phospholipids in cells and cognitive function.
    6. Vitamins are essential nutrients that play important roles in cellular respiration and energy metabolism.
    7. Minerals are the only essential inorganic nutrients.
    8. Sponges lack a digestive system and digest food intracellularly.
    9. One-way digestive systems have a gastrovascular cavity for digestion, absorption, and elimination.
    10. Two-way digestive systems have specialized compartments for mechanical and chemical digestion.
    11. The oral cavity, pharynx, and esophagus are involved in the two-way digestive system of mammals.
    12. The stomach uses smooth muscle tissue for peristalsis and has accessory glands for chemical digestion.1. Pepsinogen becomes pepsin to digest proteins.
    13. Pepsin accelerates the conversion of pepsinogen to pepsin.
    14. Positive feedback mechanism is initiated by the presence of proteins in the stomach.
    15. Chyme moves from the stomach to the small intestine.
    16. Small intestine has a finger-like jungle architecture for nutrient absorption.
    17. Chemical digestion in the small intestine includes the breakdown of polysaccharides, disaccharides, and proteins.
    18. Bile emulsifies fat for digestion and absorption.
    19. Water-soluble nutrients and short-chain fatty acids cross into blood capillaries.
    20. Long-chain fatty acids are absorbed by chylomicrons.
    21. Chylomicrons are too big for blood capillaries and enter the lacteal vessel for transport through the lymphatic system.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on animal nutrition and digestive organ systems with this informative quiz! From identifying essential nutrients to comparing digestive system evolution across phyla, this quiz covers it all. Learn about the importance of vitamins and minerals, as well as the differences between one-way and two-way digestive systems. Challenge yourself with questions on the mammalian digestive system and the mechanics of chemical digestion. Whether you're a biology student or just interested in animal anatomy, this quiz is sure to test your understanding of animal nutrition and digestive

    More Like This

    Lesson 2: Types of Drama
    16 questions

    Lesson 2: Types of Drama

    HearteningOsmium avatar
    HearteningOsmium
    Lesson 2: Background of the Problem
    12 questions

    Lesson 2: Background of the Problem

    RecordSettingRabbit avatar
    RecordSettingRabbit
    Lesson 25: The Rise of the Warrior Class in Japan
    13 questions

    Lesson 25: The Rise of the Warrior Class in Japan

    GlisteningRadon avatar
    GlisteningRadon
    Lesson 2: Color Theory
    25 questions

    Lesson 2: Color Theory

    CalmingSurrealism avatar
    CalmingSurrealism
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser