[17] Thermogenesis and Bioenergetics Flashcards
What is thermogenesis?
The process of heat production in organisms.
What is bioenergetics?
The study of energy flow and energy transformations in living organisms.
What is the role of thermogenesis in bioenergetics?
It contributes to maintaining body temperature and overall energy balance.
What biological processes lead to thermogenesis?
Cellular respiration, metabolism of food, and specific mechanisms like brown fat thermogenesis.
What is non-shivering thermogenesis?
A method of heat production that does not involve muscle contractions.
What tissue plays a crucial role in non-shivering thermogenesis?
Brown adipose tissue.
How does brown adipose tissue contribute to thermogenesis?
It burns chemical energy to create heat, largely due to the presence of a protein called UCP1.
What is the full form of UCP1?
Uncoupling Protein 1.
What is the role of UCP1 in brown adipose tissue?
It uncouples oxidative phosphorylation from ATP synthesis, releasing energy as heat.
What are the two main types of thermogenesis?
Shivering and non-shivering thermogenesis.
How does shivering lead to thermogenesis?
The rapid contraction and relaxation of muscles during shivering burns energy and produces heat.
How do metabolic rates affect thermogenesis?
Higher metabolic rates can lead to more heat production as more energy is converted into heat.
What is the correlation between thermogenesis and obesity?
Increased thermogenesis can lead to a reduction in body weight, and is a potential target for obesity treatments.
What is diet-induced thermogenesis?
The production of heat in response to the consumption of food.
How does thermogenesis play a role in hibernating animals?
Hibernating animals utilize thermogenesis to raise their body temperature when coming out of hibernation.
