7. basics of circadian rhythms

Question 1

what is the function of biological clocks?

Answer 1

anticipation of environmental events

Question 2

what are possible entrainment cues for the circadian rhythm?

Answer 2

1. light -> timing/quality/amount of the light
2. food
3. temperature
4. exercise

Question 3

What is the circadian time and zeitgeber time?

Answer 3

CT0 is when melatonin STARTS accumulating in humans
ZT0 is when the lights come on

Question 4

core molecular clockwork of the circadian rhythm:

Answer 4

1. BMAL1 2. CLOCK 3. Per 4. CRY