Essential Biochemistry - Laboratory Investigation Techniques (Section 1)

  • 1
    What is the role of coenzymes?
    Cevap
    (C)
    They assist enzymes in catalyzing reactions
  • 2
    Which of the following is an example of a monosaccharide?
    Cevap
    (C)
    Glucose
  • 3
    What is the first step in radioimmunoassay?
    Cevap
    (C)
    Addition of labelled antigen and antibody
  • 4
    Which of these processes takes place in the mitochondria?
    Cevap
    (B)
    Krebs Cycle
  • 5
    What type of macromolecule is primarily responsible for the storage of genetic information?
    Cevap
    (D)
    Nucleic acids
  • 6
    Which of the following is NOT a lipid?
    Cevap
    (D)
    Polypeptides
  • 7
    Which of the following is a component of a colorimeter?
    Cevap
    (D)
    All of the above
  • 8
    Which of the following is a disadvantage of RIA?
    Cevap
    (B)
    Requires radioactive isotopes
  • 9
    In colorimetry the light absorbed is
    Cevap
    (B)
    Directly proportional to the concentration
  • 10
    What is measured by the enzyme activity assay?
    Cevap
    (B)
    product formation
  • 11
    Which of the following is used for chromatography separation?
    Cevap
    (D)
    All of the above
  • 12
    ELISA stands for?
    Cevap
    (A)
    Enzyme Linked Immunosorbent Assay
  • 13
    Which technique is mainly used to detect infectious diseases?
    Cevap
    (A)
    ELISA
  • 14
    Which of the following is a function of lipids?
    Cevap
    A
    B
    D
  • 15
    Where does the Calvin cycle take place?
    Cevap
    (B)
    Chloroplast stroma
  • 16
    What are the advantages of using RIA?
    Cevap
    A
    D
  • 17
    The standard unit is in radioimmunoassay
    Cevap
    (C)
    µg/L
  • 18
    What is the process of synthesizing proteins from mRNA called?
    Cevap
    (B)
    Translation
  • 19
    What is the process by which a protein loses its shape and function due to disruption of its bonds?
    Cevap
    (B)
    Denaturation
  • 20
    What is a common function of the Krebs cycle?
    Cevap
    (C)
    ATP production
  • 21
    What is the process of converting amino acids into glucose called?
    Cevap
    (C)
    Gluconeogenesis
  • 22
    What are the components of a lipid?
    Cevap
    B
    C
    D
  • 23
    Which of the following is a function of carbohydrates?
    Cevap
    A
    B
  • 24
    What is the primary role of cholesterol in animal cell membranes?
    Cevap
    (B)
    Structural support and regulating membrane fluidity
  • 25
    What principle is used in flame photometry?
    Cevap
    B
    C
  • 26
    Flame photometry is based on which principle?
    Cevap
    (B)
    Emission of light
  • 27
    What is the role of ribosomes?
    Cevap
    (B)
    Protein synthesis
  • 28
    In colorimetry, the color intensity is determined by
    Cevap
    (A)
    The concentration of the compound being measured
  • 29
    The color intensity measured by colorimetry is
    Cevap
    (A)
    Directly proportional to the concentration of the substance.
  • 30
    What is the product of glycolysis?
    Cevap
    (B)
    Pyruvate
  • 31
    What is a zymogen?
    Cevap
    (A)
    An inactive enzyme precursor
  • 32
    Where does the Krebs cycle take place in eukaryotic cells?
    Cevap
    (C)
    Mitochondria
  • 33
    The pH of the buffer used for separation of serum proteins by electrophoresis in agar gel is
    Cevap
    (C)
    8.6
  • 34
    What is the primary function of enzymes?
    Cevap
    (C)
    To catalyze reactions
  • 35
    Which of the following is a component of a cell membrane?
    Cevap
    (C)
    Phospholipids
  • 36
    Which of the following are monosaccharides?
    Cevap
    A
    B
  • 37
    What is the role of tRNA in protein synthesis?
    Cevap
    (B)
    Transporting amino acids
  • 38
    The heat of the flame is provided by
    Cevap
    (D)
    fuel and oxygen
  • 39
    What is the role of DNA polymerase?
    Cevap
    (B)
    Synthesizing DNA
  • 40
    What process produces the most ATP molecules?
    Cevap
    (C)
    Electron transport chain
  • 41
    The separation of serum proteins by electrophoresis is based on their
    Cevap
    (B)
    Charge
  • 42
    The following is the technique used to determine the concentration of sodium and potassium in biological fluids.
    Cevap
    (A)
    Flame photometry
  • 43
    Which of the following is a component of a nucleotide?
    Cevap
    A
    B
    D
  • 44
    What is the role of the enzyme ligase?
    Cevap
    (B)
    To form bonds
  • 45
    The method is used to identify of major amino acids and drugs
    Cevap
    (D)
    All of the above
  • 46
    Which of the following techniques is used for the separation of amino acids, peptides, carbohydrates, hormones, drugs, vitamins and brain entities?
    Cevap
    (D)
    All of the above
  • 47
    Which of these is NOT a step in glycolysis?
    Cevap
    (C)
    Oxidative decarboxylation
  • 48
    Which of the following are types of enzyme inhibitors?
    Cevap
    A
    B
    C
    D
  • 49
    What is the mobile phase in paper chromatography?
    Cevap
    (B)
    The solvent
  • 50
    The most widely used method for determining the concentration of biochemical compounds is
    Cevap
    (A)
    Colorimetry