Zadanie 18
A person normally sleeps from about 01:00 until 07:30. The 24-hour clock shows four positions. Around which position would melatonin normally be highest? A. A B. B C. C D. D
- Materiał graficzny
Melatonin and daily sleep timing
Relate the daily pattern of pineal melatonin secretion to circadian regulation of sleeping and waking.
Tę umiejętność sprawdzają 3 zadania wzorowane na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 3 Otwórz w wyszukiwarce z filtrami
Zadanie 16
Which gland–hormone–role combination is correct? A. Pineal gland — melatonin — coordination of daily sleep timing B. Adrenal gland — insulin — lowering blood glucose C. Pancreas — melatonin — initiating sleep D. Pineal gland — adrenaline — increasing cardiac…
Zadanie 4a
Melatonin participates in daily sleep–wake regulation. (i) State the organ that produces melatonin. (ii) A traveller crosses several time zones. Deduce, with a reason, the local time of day when restoring a rise in melatonin would support the usual sleep–wake…