Nutrition, body weight and homeostasis Flashcards
How many kilojoules are in one kcal?
1kcal=4.2kJ
What are the fat soluble vitamins?
A,D,E and K
What is diet-induced thermogenesis?
It is the energy required to process food
What are the three components of daily energy expenditure?
- Basal metabolic rate
- Voluntary physical activity
- Diet-induced thermogenesis
What is basal metabolic rate?
It is the energy to maintain resting functions of the body.
Over what BMI are people considered obese?
30
What is the BMI for people of a desirable weight?
18.5-24.9
What causes Kwashikor?
As a result of low protein intake there is insufficient blood protein synthesis leading to a decrease in plasma oncotic pressure and tissue oedma
How do you calculate BMI?
Weight (kg) / Height (m^2)
What is an alternate method to BMI, in finding out if someone is obese?
Waist-hip ratio
What am I describing? “Variables are regulated so that internal conditions remain stable and relatively constant”
Homeostasis
What are the nine essential amino acids?
Isoleucine, leucine, valine, lysine, threonine, histidine, methionine, phenylalanine, tryptophan
What are the three conditionally essential amino acids?
Arginine, tyrosine and cysteine
What is 1 kcal?
The amount of energy needed to raise the temperature of 1kg of water 1 degrees
