Protein Deficiency and Marasmus
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Protein Deficiency and Marasmus

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Questions and Answers

What is the primary function of enzymes as a type of protein?

  • To store nutrients
  • To provide structural support
  • To transport oxygen
  • To speed up chemical reactions (correct)

    • How do proteins function in the immune system?

  • By providing stored energy for muscle use
  • By forming antibodies to protect against disease (correct)
  • By regulating glucose levels in the blood
  • By maintaining hydraulic pressure in cells

    • Denaturation in proteins affects which of the following?

  • The synthesis of new peptides
  • The three-dimensional structure of the protein (correct)
  • The binding affinity of hormones
  • The protein's ability to transport molecules

    • Which of the following statements regarding the functions of proteins is true?

    <p>Proteins can also act as energy sources when required.</p> Signup and view all the answers

    What component of proteins is primarily responsible for catalytic activity?

    <p>Amino acids</p> Signup and view all the answers

    Which statement accurately describes the role of proteins in maintaining acid-base balance?

    <p>Proteins help directly maintain the pH levels in the body.</p> Signup and view all the answers

    What does the process of protein denaturation typically involve?

    <p>Structural changes due to extreme environment conditions</p> Signup and view all the answers

    What effect can extreme pH levels have on proteins?

    <p>They can denature proteins and affect their function.</p> Signup and view all the answers

    Which of the following is NOT a function of proteins in the body?

    <p>Generating energy exclusively</p> Signup and view all the answers

    What health complication can arise if intestinal bacteria translocate into the bloodstream due to insufficient protein intake?

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

    Which age group exhibits the most pronounced effects of slow growth due to inadequate protein consumption?

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

    How does low protein intake specifically impact the immune system's functionality?

    <p>It weakens the ability to fight infections.</p> Signup and view all the answers

    What is the primary cause of marasmus, a severe form of malnutrition?

    <p>Inadequate intake of protein, energy, and other nutrients</p> Signup and view all the answers

    Which symptom is NOT typically associated with marasmus?

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

    In which demographic is marasmus most frequently observed?

    <p>Young children, especially under age 1</p> Signup and view all the answers

    Which element might be found in amino acids, in addition to carbon, hydrogen, oxygen, and nitrogen?

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

    What is the basic chemical structure of all amino acids?

    <p>A single carbon atom with an amine group and an acid group</p> Signup and view all the answers

    Which component is responsible for the unique identity of each amino acid?

    <p>A distinctive chemical side chain</p> Signup and view all the answers

    How do side chains influence amino acids?

    <p>They give each amino acid its identity and chemical nature.</p> Signup and view all the answers

    What is one of the primary functions of proteins in biological systems?

    <p>Structural support and catalysis</p> Signup and view all the answers

    Which of the following elements is not typically found in amino acids?

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

    What role do amino acids play in the synthesis of proteins?

    <p>They are the building blocks of proteins.</p> Signup and view all the answers

    Which structure do amino acids NOT share?

    <p>A side chain</p> Signup and view all the answers

    Which property of amino acids does the side chain primarily affect?

    <p>Hydrophilicity or hydrophobicity</p> Signup and view all the answers

    What does a lacto-ovo vegetarian consume?

    <p>Eggs and dairy products</p> Signup and view all the answers

    Which type of vegetarian excludes eggs from their diet?

    <p>Lacto-vegetarian</p> Signup and view all the answers

    What distinguishes an ovo-vegetarian from other types of vegetarians?

    <p>They eat eggs but not dairy products.</p> Signup and view all the answers

    Which type of vegetarian avoids all animal products and by-products?

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

    What is typically the Recommended Dietary Allowance (RDA) for protein for sedentary adults?

    <p>0.8 g/kg</p> Signup and view all the answers

    How much protein do athletes typically require per kilogram of body weight?

    <p>1.2 to 1.7 g/kg</p> Signup and view all the answers

    What percentage of total calories should come from protein according to dietary guidelines?

    <p>10% to 35%</p> Signup and view all the answers

    What type of vegetarian primarily focuses on consuming protein-rich plant foods?

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

    Which type of vegetarian consumes only foods derived from plants and eggs?

    <p>Ovo-vegetarian</p> Signup and view all the answers

    Which dietary guideline is related to how much protein is required in a balanced diet?

    <p>Macronutrient distribution should be 10% to 35% from protein</p> Signup and view all the answers

    Which cooking method is most associated with denaturation of proteins?

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

    During which process in the stomach is denaturation mainly achieved?

    <p>Digestion with hydrochloric acid</p> Signup and view all the answers

    Which of the following is NOT a known cause of protein denaturation?

    <p>High sugar concentrations</p> Signup and view all the answers

    What significant change occurs to proteins during the cooking process?

    <p>Proteins lose their original structure and function</p> Signup and view all the answers

    How does high salt concentration affect protein structure?

    <p>It disrupts ionic bonds, leading to structural changes</p> Signup and view all the answers

    Which type of vegetarian excludes both dairy and eggs?

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

    What is a common misconception about protein denaturation?

    <p>It can be reversed by cooling</p> Signup and view all the answers

    Which of the following processes is an example of protein denaturation?

    <p>Making meringue by whipping egg whites</p> Signup and view all the answers

    Which type of vegetarian consumes dairy products but not eggs?

    <p>Lacto-vegetarian</p> Signup and view all the answers

    Which factor would least likely cause denaturation in proteins during food processing?

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

    Study Notes

    Protein Deficiency

    • Marasmus is caused by inadequate intake of protein, energy, and other nutrients.
    • Marasmus symptoms include severe wasting of muscle tissue, stunted physical growth, and anemia.
    • Marasmus is most common in young children, especially under the age of 1.

    Consequences of Protein Deficiency

    • Impaired digestive function
    • Reduced food absorption
    • Intestinal bacteria entering the bloodstream, causing septicemia
    • Weakened immune system, making it difficult to fight infections
    • Slow growth in children

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    Related Documents

    Protein Lecture 5 PDF

    Description

    This quiz explores the effects and symptoms of protein deficiency, focusing on Marasmus, a severe form of malnutrition. Learn about its causes, consequences, and the impact it has on young children, particularly those under one year of age.

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