8-Nutrition/Metabolism/Body Temp/Homeostasis Flashcards
Define Metabolism
How fuel is burned in the body
Define Basal metabolic rate
How fast fuel is burned in the body
How is fuel for the body obtained (2)
- Breathing (O2)
- Eating (Glucose)
What is the name of the amount of energy from nutrients
Kilocalorie
How many calories come from 1 gram of carbs, protein and fat
- Carbs= 4
- Protein= 4
- Fat= 9
What happens to excess nutrients in the body (2)
- Stored
- Excreted
What does the body do if reserves are not available for energy
-Body structures will be metabolized
What is catabolism
Breaking down carbs to make energy
What is a result of catabolism
Energy
Explain the difference between macro/micro nutrients
- Macro- Breakdown of Carbs, Lipids, Proteins
- Micro- Minerals/Electrolytes, vitamins that pull energy from macronutrients
What is the importance of carbohydrates (4)
- Most important source of energy
- Body turns it into glucose
- Glucose then produces energy
- Excess glucose is stored in liver and muscles
What is the importance of Lipids (fats) (5)
- Provide energy to control inflammation, clotting and brain development
- Provides storage for extra calories
- Fills adipose tissue for insulation
- Maintains skin and hair
- Absorbs vitamins
What do saturated fats cause
-High LDL (BAD cholesterol)
What do unsaturated fats do
-Decrease LDL (BAD cholesterol)
What do trans fatty acids do(2)
-Increase LDL Decrease HDL (GOOD cholesterol)