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  • Question 1 - Regarding oxidative deamination of amino acids, which of the following is true? ...

    Correct

    • Regarding oxidative deamination of amino acids, which of the following is true?

      Your Answer: Occurs in the kidney & liver

      Explanation:

      Oxidative deamination is a form of deamination that generates α-keto acids and other oxidized products from amine-containing compounds, and occurs largely in the liver and kidney. Oxidative deamination is an important step in the catabolism of amino acids, generating a more metabolizable form of the amino acid, and also generating ammonia as a toxic by-product. The addition of ubiquitin to a substrate protein is called ubiquitination.

    • This question is part of the following fields:

      • Cell Biology
      • Medicine
      1.2
      Seconds

  • Question 2 - The free radical most abundantly formed by the immune system is: ...

    Correct

    • The free radical most abundantly formed by the immune system is:

      Your Answer: Hydroxyl radical

      Explanation:

      Neutrophil and macrophage phagocytosis stimulates various cellular processes including the respiratory burst whereby increased cellular oxygen uptake results in the production of the potent oxidant bactericidal agents, hypochlorous acid and hydroxyl radical.

    • This question is part of the following fields:

      • Cell Biology
      • Medicine
      1.9
      Seconds

  • Question 3 - Cyclic AMP activates the following enzyme ...

    Correct

    • Cyclic AMP activates the following enzyme

      Your Answer: Protein Kinase A

      Explanation:

      Cyclic AMP works by activating protein kinase A (PKA, or cAMP-dependent protein kinase). Protein kinase A can also phosphorylate specific proteins that bind to promoter regions of DNA, causing increases in transcription.

    • This question is part of the following fields:

      • Cell Biology
      • Medicine
      0.9
      Seconds

  • Question 4 - The complete oxidation of 1 molecule of glucose to CO2 and H20 produces...

    Correct

    • The complete oxidation of 1 molecule of glucose to CO2 and H20 produces a total of __ATP.

      Your Answer: 38

      Explanation:

      Textbooks often state that 38 ATP molecules can be made per oxidised glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system). However, this maximum yield is never quite reached because of losses due to leaky membranes as well as the cost of moving pyruvate and ADP into the mitochondrial matrix, and current estimates range around 29 to 30 ATP per glucose.

    • This question is part of the following fields:

      • Cell Biology
      • Medicine
      2.7
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Cell Biology (4/4) 100%
Medicine (4/4) 100%
Passmed
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