Microbiology and Biochemistry Quiz
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Questions and Answers

Hepatitis D virus can replicate only in cells already infected with which virus?

  • Hepatitis B virus (correct)
  • Hepatitis G virus
  • Epstein-Barr virus
  • Hepatitis A virus

    • What is the major action of intracellular fluid related to?

  • Calcium
  • Sodium
  • Magnesium
  • Potassium (correct)

    • What is the end product of purine metabolism?

  • Creatine
  • Xanthine
  • Urea
  • Uric acid (correct)

    • Most of the cholesterol esters found in the blood are?

    <p>Fatty acid esters</p> Signup and view all the answers

    What is the major extracellular anion?

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

    What is the causative agent of the disease characterized by coryza, conjunctivitis, low-grade fever, and Koplik's spots?

    <p>Measles virus</p> Signup and view all the answers

    Prions are best described as?

    <p>Infectious protein with no associated nucleic acid</p> Signup and view all the answers

    Which of the following viruses is required for the replication of Hepatitis D virus?

    <p>Hepatitis B virus</p> Signup and view all the answers

    Which ion plays a crucial role in the regulation of muscle contraction and nerve function?

    <p>Calcium (Ca)</p> Signup and view all the answers

    Which of the following anticoagulants removes calcium from the blood?

    <p>Ammonium oxalate</p> Signup and view all the answers

    What is the primary function of uric acid in the body?

    <p>Nitrogen excretion</p> Signup and view all the answers

    What is the most abundant protein in serum?

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

    What is the significance of an elevated ASO titer in a patient's serum?

    <p>All of the above</p> Signup and view all the answers

    Which of the following best describes the nucleic acid of an influenza virion?

    <p>Segmented single-stranded RNA genome with negative polarity</p> Signup and view all the answers

    What is the unique characteristic of prions?

    <p>Infectious protein with no associated nucleic acid</p> Signup and view all the answers

    Study Notes

    Hepatitis D Virus

    • Hepatitis D virus (Delta agent) is a defective virus that can only replicate in cells already infected with Hepatitis B virus.

    Anticoagulants

    • All anticoagulants act by removing calcium except Heparin.

    Intracellular Fluid

    • The major action of intracellular fluid is related to potassium (K).

    Uric Acid

    • Uric acid is the end product of purine metabolism.
    • It is not the major form of nitrogen excretion in man, nor is it important for the synthesis of adenine, a major component of bile, or the end point of cholesterol metabolism.

    Cholesterol Esters

    • Most of the cholesterol esters found in the blood are fatty acids.

    Extracellular An-Ion

    • The major extracellular an-ion is Chloride (Cl).

    Serum Proteins

    • The protein found in the highest concentration in serum is Albumin.

    ASO Titer

    • An elevation of the ASO titer over 200 IU in a patient's serum may indicate Acute Streptococcus pyogenes infection.

    Childhood Diseases

    • The causative agent of a disease with symptoms of coryza, conjunctivitis, low-grade fever, and Koplik's spots is Measles virus.

    Prions

    • Prions are best described as Infectious proteins with no associated nucleic acid.

    Influenza Virion

    • The nucleic acid of an influenza virion consists of Eight segmented single-stranded RNA genome with Negative polarity.

    Interferon

    • The mechanism of antiviral activity of Interferon is to Inhibit translation of Viral mRNAs.

    Hepatitis D Virus

    • Hepatitis D virus (Delta agent) is a defective virus that can only replicate in cells already infected with Hepatitis B virus.

    Anticoagulants

    • All anticoagulants act by removing calcium except Heparin.

    Intracellular Fluid

    • The major action of intracellular fluid is related to potassium (K).

    Uric Acid

    • Uric acid is the end product of purine metabolism.
    • It is not the major form of nitrogen excretion in man, nor is it important for the synthesis of adenine, a major component of bile, or the end point of cholesterol metabolism.

    Cholesterol Esters

    • Most of the cholesterol esters found in the blood are fatty acids.

    Extracellular An-Ion

    • The major extracellular an-ion is Chloride (Cl).

    Serum Proteins

    • The protein found in the highest concentration in serum is Albumin.

    ASO Titer

    • An elevation of the ASO titer over 200 IU in a patient's serum may indicate Acute Streptococcus pyogenes infection.

    Childhood Diseases

    • The causative agent of a disease with symptoms of coryza, conjunctivitis, low-grade fever, and Koplik's spots is Measles virus.

    Prions

    • Prions are best described as Infectious proteins with no associated nucleic acid.

    Influenza Virion

    • The nucleic acid of an influenza virion consists of Eight segmented single-stranded RNA genome with Negative polarity.

    Interferon

    • The mechanism of antiviral activity of Interferon is to Inhibit translation of Viral mRNAs.

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    Description

    This quiz tests your knowledge of microbiology and biochemistry concepts, including viruses, anticoagulants, and bodily fluids.

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