Metabolism Flashcards
(35 cards)
How many grams does carbohydrates provide?
5 grams
How many grams does proteins and fat provide?
9 grams
Anabolic reaction
Larger molecules are built from smaller molecules
Eg: Glucose > Glycogen
Building up energy storage and body structures
Catabolic reactions
Breaking down larger complex molecules into smaller ones to produce energy
Eg: Glycogen > glucose
Anaerobic metabolism:
Glycolysis
Glucose> pyruvate + 2ATPS
Aerobic metabolism
Krebs cycle and ETC
Glucose+ O2 > CO2 + H2O + 32-34 ATPS
What happens to excess glucose?
It is joined together and stored as glycogen (anabolic)
Metabolism of glucose
Catabolic reaction
Glycogenysis
Gluconeogenesis
What is glycogenolysis?
Glycogen breakdown to glucose used for energy
What is gluconeogenesis?
Glycerol from fat
Amino acids converted into glucose and used for energy
Metabolism of glucose
Anabolic reaction
Glycogenesis
What is glycogenesis?
Glucose joined together and stored as glycogen
What happens to excess glucose?
Converted to fatty acids and stored in TAGS
Glycaemic index
The amount of carbohydrate in the reference and test food must be the same
Metabolism of carbohydrates
Monosaccharides are delivered to___
Liver
Metabolism of carbohydrates
What is excess glucose converted into?
TAGs in liver and adipose cells
Protein metabolism
Functional proteins—?
Structural proteins—?
Hormones, receptors or enzymes
Actin, myosin in muscle cells
Some proteins are deaminated to__
Keto acids
What does the liver use amino acids for?
To synthesise plasma proteins
What is the protein for clotting?
Fibrinogen
What is the protein for transport?
Albumin
What is the protein for immunity?
Immunoglobulins
Excess amino acids are converted into
TAG and stored in adipose tissue
Dietary triglycerides are transported in___ and move through___
Chylomicrons
Lymph fluid into the blood stream