biological rhythms exam questions

Question 1

outline one or more examples of ultradian rhythms (4 MARKS)

Answer 1

rhythms that have a cycle length of more than one cycle every 24 hours. For example, the alternation between REM and NREM sleep during the
night. Stage 1-4 is REM sleep whereas stage 5 is NREM and this is associated with dreaming

Question 2

outline one example of a circadian rhythm (4 MARKS)

Answer 2

Circadian rhythms complete one full cycle every 24 hours. the sleep wake cycle is driven by our body clocks and synchronised by the SCN. when light is detected by the SCN, it send a signal to the pineal gland, stopping the production of melatonin. also, social cues are also thought to act as EZ

Question 3

discuess the role of EP in the control of one or more biological rhythms