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The Digestive Process and Enzyme Action
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The Digestive Process and Enzyme Action

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Questions and Answers

Which term describes the process of breaking down food into smaller molecules?

  • Excretion
  • Absorption
  • Digestion (correct)
  • Metabolism
  • What is the main function of the digestive system?

  • To eliminate waste products
  • To break down food for absorption (correct)
  • To produce new cells
  • To regulate glucose in the body
  • What is the most basic unit of life?

  • Molecules
  • Atoms
  • Tissues
  • Cells (correct)
  • Which level of organization involves interaction between tissues and response to the environment?

    <p>Organ level</p> Signup and view all the answers

    What is the main function of the circulatory system?

    <p>Transporting nutrients and waste products</p> Signup and view all the answers

    What is the primary function of the respiratory system?

    <p>Performing gas exchange</p> Signup and view all the answers

    Which organ stores food, breaks it down mechanically and chemically, and empties partially broken down food into the small intestine?

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

    Where does most of the digestion of food components occur in the human body?

    <p>Small intestine</p> Signup and view all the answers

    What is the main function of the large intestine?

    <p>Reabsorb water</p> Signup and view all the answers

    Which organ is the first stop for most absorbed nutrients?

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

    What is the main fuel for the human brain?

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

    Which nutrient deficiency can increase the risk of infection and death?

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

    What is the leading cause of immune system deficiency worldwide?

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

    Which system regulates appetite, nutrient absorption, and storage?

    <p>Endocrine system</p> Signup and view all the answers

    What happens to nutrient absorption when the digestive system is compromised?

    <p>It is compromised</p> Signup and view all the answers

    Study Notes

    Digestive System

    • The process of breaking down food into smaller molecules is called digestion.
    • The main function of the digestive system is to break down food into smaller molecules that can be absorbed and utilized by the body.

    Organization Levels

    • The most basic unit of life is the cell.
    • The level of organization that involves interaction between tissues and response to the environment is the organ level.

    Circulatory and Respiratory Systems

    • The main function of the circulatory system is to transport oxygen and nutrients to cells and remove waste products.
    • The primary function of the respiratory system is to bring oxygen into the body and remove carbon dioxide.

    Digestion and Absorption

    • The stomach stores food, breaks it down mechanically and chemically, and empties partially broken down food into the small intestine.
    • Most of the digestion of food components occurs in the small intestine.
    • The main function of the large intestine is to absorb water and electrolytes, and store and eliminate waste.

    Nutrient Absorption and Immune System

    • The liver is the first stop for most absorbed nutrients.
    • The main fuel for the human brain is glucose.
    • A deficiency in protein can increase the risk of infection and death.
    • The leading cause of immune system deficiency worldwide is HIV/AIDS.
    • The system that regulates appetite, nutrient absorption, and storage is the endocrine system.
    • When the digestive system is compromised, nutrient absorption is impaired.

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    Description

    Test your knowledge of the digestive process and enzyme action in this quiz! Learn about the role of enzymes from salivary glands, stomach, pancreas, and small intestine in breaking down food. Discover how mechanical breakdown begins with chewing and how the bolus moves through the digestive tract.

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