KROK 1 2021 – Question 80 · KROK (Medicine) · Biological Chemistry
Albinos are vulnerable to sunlight – instead of developing a suntan, they develop burns. This phenomenon occurs because of disturbed metabolism of a certain amino acid. Name this amino acid:
- A. Phenylalanine
- B. Tryptophan
- C. Methionine
- D. Histidine
- E. Glutamine
Hint
Melanin pigment is built from an aromatic amino acid; think about which dietary amino acid feeds the pathway whose block leaves the skin without protection.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Biological Chemistry
- Lung pathologies stimulate adaptive changes in the human body to ensure better oxygen supply to the tissues. One of these adaptive changes is the…
- A newborn had seizures that stopped after vitamin B₆ was prescribed. This effect was most likely observed, because vitamin B₆ takes part in…
- Blood plasma of a healthy person contains several dozens of protein types. If a person becomes ill, new types of proteins develop in the body. Among…
- A diet must contain fats. What plasticity function do they fulfill in the body?
- A man is a carrier of AIDS virus that is an RNA virus. The cells of this patient synthesize viral DNA. This process is based on:
- Watson and Crick determined that the DNA double helix structure is stabilized with the bonds between complementary nitrogenous bases. What type of…