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Tutor profile: Genie W.

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Genie W.
Medical Student @ Cardiff University
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Questions

Subject: Chemistry

TutorMe
Question:

Explain the process of fractional distillation.

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Genie W.
Answer:

Fractional distillation separates mixtures by relying on the different boiling points of fractions. Fractions with a lower boiling point reaches the top of the column where it condenses is collected, while those with a higher boiling point condense at the bottom.

Subject: Biology

TutorMe
Question:

Maltose is a sugar which can only be broken down by maltase. Why is this the case?

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Genie W.
Answer:

The tertiary structure of the maltase enzyme protein contains an active site with a shape complementary to only maltose. As maltose binds to maltase it causes a conformational change named the 'induced fit', allowing the formation of an enzyme-substrate complex. This therefore lowers the activation energy for this reaction.

Subject: Anatomy

TutorMe
Question:

Mark, a 58 year old man had fallen off his bike this morning and landed on his left wrist. On examination a wrist drop has been noted. Radiological imaging shows a fracture of the scaphoid bone. Which nerve is most likely to have been damaged?

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Genie W.
Answer:

Radial nerve

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