KROK 1 2010 – Question 43 · KROK (Medicine) · Biological Chemistry
Vitamin A together with specific cytoreceptors penetrates through the nuclear membranes, induces transcription processes that stimulate growth and differentiation of cells. This biological function is realized by the following form of vitamin A:
- A. Trans-retinoic acid
- B. Carotin
- C. Trans-retinal
- D. Retinol
- E. Cis-retinal
Hint
Match the nuclear, receptor-mediated action described in the stem to the form of vitamin A that serves as a hormone-like signal rather than as a visual pigment or a precursor.
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