Biological Rhythms (A01)

Question 1

Circadian Rhythm

Answer 1

A type of biological rhythm which completes one full cycle every 24 hours
e.g.
the sleep-wake cycle

Question 2

Ultradian Rhythm

Answer 2

A type of biological rhythm with a frequency of one complete cycle occurring less than once every 24 hours.
eg; sleep stages

Question 3

Infradian Rhythm

Answer 3

A type of biological rhythm with a frequency of one complete cycle occurring more than once every 24 hours
eg; menstrual cycle, SAD