Question

Which of the following statements about principles of energy expenditure in physiology is correct?

	a.	40% of the energy released during metabolism as heat is used to regulate temperature.
	b.	Total energy expenditure per kg of body weight is called the basal metabolic rate.
	c.	1 calorie is equal to 1000 kilo calories.
	d.	The first law of thermodynamics states that energy can be lost, converted or created.
	e.	Energy liberated during breakdown of organic molecules can either appear as heat or be used to perform work

Answer 1

The answer is option E.

•Energy liberated during breakdown of organic molecules can either appear as heat or be used to perform work.

•About 60% of energy released during metabolism as heat is used to regulate temperature.

•Basal metabolic rate is the rate of energy expenditure per unit time.

•1 kilo calorie is equal to 1000 calories.

•The first law of thermodynamics states that total amount of energy is constant,energy is neither created nor destroyed.The energy is only transferred or transformed.

Hence the answer is E.