Biochemistry of Movement >Sprinting Involves Muscles Contracting Powerfully And Rapidly And Utilises Type 2 Muscle Cells
Sprinting involves muscles contracting powerfully and rapidly and utilises type 2 muscle cells
Students learn to:
- outline the problems associated with the supply and use of fuels during sprinting and relate this to the sprinting muscles’ reliance on non-oxygen/non-mitochondrial based ATP production
- explain the possible relationship between the production of 2–hydroxypropanoic (lactic) acid during anaerobic respiration and the impairment of muscle contractions by changes in cellular pH
Students:
- solve problems and process information from a simplified flow chart of biochemical pathways to summarise the steps in anaerobic glycolysis and analyse the total energy output from this process
- use available evidence and process information from a simplified flow chart of biochemical pathways to trace the path of lactic acid formation and compare this with the process of fermentation
- process information to discuss the use of multiple naming systems in chemistry using lactic acid (2–hydroxypropanoic acid or 2–hydroxypropionic acid) as an example
Extract from Chemistry Stage 6 Syllabus (Amended October 2002). © 2009, Board of Studies NSW.