BIOLOGY
HORMONES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Circadian rhythm
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Abscission
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Photoperiod
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Thigmotropism
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Detailed explanation-1: -What are circadian rhythms? Circadian rhythms are physical, mental, and behavioral changes that follow a 24-hour cycle. These natural processes respond primarily to light and dark and affect most living things, including animals, plants, and microbes.
Detailed explanation-2: -The circadian clock has an internally driven 24-hour rhythm that tends to run longer than 24 hours but resets every day by the sun’s light/dark cycle. Taking melatonina supplements can also shift the timing of the body’s “clock.” Some people use melatonina as a sleep aid: it has a mild sleep-promoting effect.
Detailed explanation-3: -Listen to pronunciation. (sir-KAY-dee-un RIH-thum) The natural cycle of physical, mental, and behavior changes that the body goes through in a 24-hour cycle. Circadian rhythms are mostly affected by light and darkness and are controlled by a small area in the middle of the brain.
Detailed explanation-4: -A circadian rhythm refers to a rhythm with a period of about 24 h that is generated by an endogenous circadian oscillator and that persists under constant environmental conditions [2], [3]. The suprachiasmatic nucleus (SCN) is the site of the central pacemaker.
Detailed explanation-5: -The regulation of sleep is processed by the homeostatic physiology of the circadian rhythm, the sleep/wake cycle. Circadian rhythm is the 24-hour internal clock in our brain that regulates cycles of alertness and sleepiness by responding to light changes in our environment.