WK 9: Macronutrients
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Questions and Answers

What percentage of protein digestion is initiated in the stomach?

  • 20-25%
  • 5-10%
  • 30-35%
  • 10-15% (correct)

    • Where does the majority of carbohydrate digestion take place?

  • Small intestine (correct)
  • Stomach
  • Large intestine
  • Mouth

    • What percentage of fat digestion is initiated in the stomach?

  • 5-10%
  • 15-20% (correct)
  • 20-25%
  • 10-15%

    • What is the primary site of protein digestion?

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

    What is the primary enzyme responsible for carbohydrate digestion in the mouth?

    <p>Salivary amylase</p> Signup and view all the answers

    What is the primary enzyme responsible for fat digestion in the small intestine?

    <p>Pancreatic lipase</p> Signup and view all the answers

    What is the term for the inability to digest lactose?

    <p>Lactose intolerance</p> Signup and view all the answers

    What is the term for a diet rich in fatty foods and low in exercise?

    <p>Lifestyle causes</p> Signup and view all the answers

    What is the term for the process of breaking down carbohydrates into glucose?

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

    What is the term for the process of breaking down proteins into amino acids?

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

    What is the rank of energy production from macronutrients?

    <p>Fats &gt; Protein &gt; Carbohydrates</p> Signup and view all the answers

    What is the primary function of lactase in the body?

    <p>Breakdown of lactose</p> Signup and view all the answers

    What is the name of the disease associated with high levels of LDL and cholesterol?

    <p>Coronary artery disease</p> Signup and view all the answers

    What is the primary role of dietary macronutrients?

    <p>Proper cell, tissue, and body function</p> Signup and view all the answers

    What is the consequence of excess consumption of dietary macronutrients?

    <p>Significant negative effect on health</p> Signup and view all the answers

    What is the relationship between macronutrient composition and health?

    <p>Macronutrient composition has a significant effect on health</p> Signup and view all the answers

    What is the primary role of carbohydrates in the body?

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

    What is the primary role of proteins in the body?

    <p>Building and repairing tissues</p> Signup and view all the answers

    What is the primary role of fats in the body?

    <p>Structural component of cells</p> Signup and view all the answers

    Why is a balanced diet essential?

    <p>To maintain a healthy lifestyle and prevent diseases</p> Signup and view all the answers

    What is the most abundant organic molecule?

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

    Which macronutrient provides a fast source of energy to cells that rely on glucose as the primary energy source?

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

    Where are monosaccharides and oligosaccharides found?

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

    Which macronutrient is classified as a complex carbohydrate and acts as the energy store for plants?

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

    What is the primary function of triglycerides in the body?

    <p>Provide energy</p> Signup and view all the answers

    Which fatty acids include omega-3 and omega-6 and are found in fish and seafood?

    <p>Polyunsaturated fats</p> Signup and view all the answers

    What is the main role of phospholipids in the body?

    <p>Build cell membranes</p> Signup and view all the answers

    Which macronutrient is the preferred energy source for the body and provides about 4.3 kcal/g?

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

    What is the primary function of lipoproteins like LDL in the body?

    <p>Transport cholesterol</p> Signup and view all the answers

    Which macronutrient can modulate blood glucose and aid in reducing blood cholesterol?

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

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