Wk1 Flashcards
how does atp release energy
through the release of chemical energy when atp-> adp +pi
done by ATPase/hydrolayse
what are the different ways of ATP resynthesis
- Pcr system
- Glycolysis (more energy produced from glyc than gluc)
- Anaerobic glycolysis
- Oxidative phosphorylation
- Fat metabolism and beta oxidation
what systems do we use at different intensities
aerobic for long and slow
anaerobic for quick and fast
what fuels do we use during exercise
duringlong aerobic cho, but more reliance on fats as time goes on
use of fats at low intensity
what are the different macronutrients
- Carbs
- Fat
- Protein
- Water
what are the different micronutrients
- Vitamins - c/d
- Minerals - calcium
- Trace elements - iron
what are the different types of carbs saccharides
- Glucose, fructose and galactose (mono)
- Maltose, sucrose and lactose (di)
what are the different types of fat
- Triglyceride
- Phospholipids
- Fatty acids – short, medium and long chain (6,8 to 10 and 12+)
- Saturated and unsaturated (double bonds)
how many essential amino acids are there
9, if a protein contains all it will be called a complete protein
for example lecuine = essential
what is the function of water
nutrient transport, protection, temp regulation, biochem reactions, medium for reactions
how to assess diet intake
- Diet records
- 24h recall
- Food freq questionnaire
where are the carb stores, how much in each
blood glucose - 3/5g
liver glycogen - 80/100
muscle glycogen - 300/400g
where are the fat stores
adipose tissue - 3.5-14kg
muscle triglyceride - 200-500g
what is the role of amino acids
central role in metabolism
precursors of protein synthesis
regulators of synthesis of neurotransmitters hormones dna and rna
