KROK 1 2020 – Question 6 · KROK (Medicine) · Biology
Biological studies proved that the intensity of testosterone secretion and spermatogenesis varies in men throughout each 24 hours. These biorhythms are called:
- A. Annual
- B. Tidal
- C. Seasonal
- D. Lunar
- E. Circadian
Hint
Focus on the length of one full cycle of the hormone fluctuation and on which environmental or internal clock sets that period.
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 Biology
- Histology of the liver detected there a vesicle with chitin and protein membrane, filled with a colorless transparent fluid. What disease can…
- A young woman, a foreign student from Tehran, has made an appointment with the urologist. She complains of the sensation of heaviness in her lower…
- Protein synthesis occurs in several stages. During one of them, messenger RNA is being synthesized on one of the strands of a DNA segment. Name this…
- A patient diagnosed with liver abscess was hospitalized into the surgery department. He has a history of frequent gastrointestinal disturbances…
- A woman gave birth to twins. One of them was provisionally diagnosed with Cri-du-chat syndrome that manifests as underdeveloped laryngeal muscles…
- Genealogical analysis of a child with myotonic dystrophy determined that this disease manifests in every generation, is in equal measure present in…