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  • Question 1 - Nucleic acids are split into nucleotides in the: ...

    Correct

    • Nucleic acids are split into nucleotides in the:

      Your Answer: Intestine

      Explanation:

      The pancreas is the major source for all the digestive enzymes including nucleases which split nucleic acids into nucleotides primarily in the small intestine.

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      7.5
      Seconds

  • Question 2 - Which enzyme hydrolyses triglycerides in lipoproteins into free fatty acids for storage in...

    Correct

    • Which enzyme hydrolyses triglycerides in lipoproteins into free fatty acids for storage in fat cells?

      Your Answer: Lipoprotein lipase

      Explanation:

      Lipoprotein lipase is a water-soluble enzyme that hydrolyses triglycerides in lipoproteins, such as those found in chylomicrons and very low-density lipoproteins (VLDL), into two free fatty acids and one monoacylglycerol molecule.

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      6.7
      Seconds

  • Question 3 - Which enzyme deficiency can lead to ammonia intoxication? ...

    Correct

    • Which enzyme deficiency can lead to ammonia intoxication?

      Your Answer: Ornithine transcarbamylase

      Explanation:

      Ornithine transcarbamylase deficiency also known as OTC deficiency is the most common urea cycle disorder in humans. Ornithine transcarbamylase, the defective enzyme in this disorder is the final enzyme in the proximal portion of the urea cycle, responsible for converting carbamoyl phosphate and ornithine into citrulline. OTC deficiency is inherited in an X-linked recessive manner, meaning males are more commonly affected than females.

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      6.9
      Seconds

  • Question 4 - Conjugation of proteins to which polypeptide marks them for degradation? ...

    Incorrect

    • Conjugation of proteins to which polypeptide marks them for degradation?

      Your Answer: Ornithine

      Correct Answer: Ubiquitin

      Explanation:

      Ubiquitin is a small regulatory protein that affects proteins in many ways: it can mark them for degradation via the proteasome, alter their cellular location, affect their activity, and promote or prevent protein interactions. Ubiquitination involves three main steps: activation, conjugation, and ligation,

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      5.6
      Seconds

  • Question 5 - The energy needed for glycogen synthesis comes from which compound? ...

    Correct

    • The energy needed for glycogen synthesis comes from which compound?

      Your Answer: UTP

      Explanation:

      Glycogen synthesis is, unlike its breakdown, endergonic—it requires the input of energy. Energy for glycogen synthesis comes from uridine triphosphate (UTP)

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      2.6
      Seconds

  • Question 6 - Which lipoprotein is responsible for lowering of plasma lipids? ...

    Correct

    • Which lipoprotein is responsible for lowering of plasma lipids?

      Your Answer: HDL

      Explanation:

      High-density lipoproteins (HDL) are one of the five major groups of lipoproteins. Lipoproteins are complex particles composed of multiple proteins which transport all fat molecules (lipids) around the body within the water outside cells. Unlike the larger lipoprotein particles which deliver fat molecules to cells, HDL particles remove fat molecules from cells.

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      3.5
      Seconds

  • Question 7 - Major supplies of glycogen are found in …. ...

    Correct

    • Major supplies of glycogen are found in ….

      Your Answer: Liver and skeletal muscle

      Explanation:

      The two major sites of glycogen storage are the liver and skeletal muscle. The concentration of glycogen is higher in the liver than in muscle however more glycogen is stored in skeletal muscle due to its greater mass.

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      3.4
      Seconds

  • Question 8 - Where is the major site of purine synthesis? ...

    Correct

    • Where is the major site of purine synthesis?

      Your Answer: Liver

      Explanation:

      The major site of purine synthesis is in the liver. Purines are biologically synthesized as nucleotides and in particular as ribotides.

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      2.6
      Seconds

  • Question 9 - A deficiency in Cyanocobalamin leads to which clinical deficiency syndrome? ...

    Correct

    • A deficiency in Cyanocobalamin leads to which clinical deficiency syndrome?

      Your Answer: Pernicious anaemia

      Explanation:

      The main syndrome of vitamin B12 deficiency is pernicious anaemia. It is characterized by a triad of symptoms:Megaloblastic anaemiaGastrointestinal symptoms &Neurological symptoms

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      2.3
      Seconds

  • Question 10 - Translation usually begins at which codon? ...

    Correct

    • Translation usually begins at which codon?

      Your Answer: AUG

      Explanation:

      The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and the most common start codon is AUG.

    • This question is part of the following fields:

      • Medicine
      • Metabolism
      2.2
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Medicine (9/10) 90%
Metabolism (9/10) 90%
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