Chap2 Flashcards
0
Q
What is Carbohydrates
A
- Important energy source for the muscle,brain and nervous tissues.
- Also assists in digestion by providing dietary fiber.
- Carb composed of chain of carbon, hydrogen and oxygen
- Carb breaks into glucose which is used to produce ATP (adenosine triphosphate) for cellular energy
1
Q
6 essential nutrients
A
MACRONUTRIENTS(provides energy for body) Carbohydrates Fat Protein **energy in food is refered to calories MICRONUTRIENTS(no energy but critical to health) Vitamins Minerals Water
2
Q
Two primary Carb categories?
A
Simple ( sugar.jam.syrup. Honey.fruit)
Complex( bred. veg.pasta.cereal.potatoes)
-best source of carb are natural: veg.fruit. While grain because they also contain vitamins. minerals and fibre.
-required intake of fibre is: 25g for women and 38g for men
3
Q
How many calories in carbs?
A
1g of carb=4calories
4
Q
How much carb should we consume?
A
45-65 total caloric intake
5
Q
How is carb used during excercise?
A
- Higher the intensity=greater reliance on carb.
- lower intensity too but not as much as it can also rely on fat
- children more carb than adults
- active ppl need to consume enough carbs to fuel brain cells, red blood cells and muscles
- active ppl=mostly compex carbs and simple carb during and after excercise
6
Q
What is fat?
A
Fat=lipids
-germ fat refers to lipids that are solid at room tempature
7
Q
Three types of lipids in food?
A
Triglycerides
Phospholipids
Sterols
-tryglocerides=95% of fat we eat
