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Choose your answers from a-d by clicking the radio button next to each choice and then press 'Submit' to get your score.

Metabolism is determined by the:

a) size of proteins in the cell

b) availability of amino acids

c) proteins formed as dictated by the genetic material

d) protein composition of the DNA

e) activity of enzymes produced in the nucleus

In sprint events, improvements in performance may come from:

a) faster reaction times

b) increased power generating ability of muscles

c) improved resistance to fatigue

d) all of the above

e) (a) and (b) only

Women's world record performances have improved rapidly in recent years mainly because:

a) women have evolved a greater muscle mass

b) women can now run faster than men

c) women have started training at an earlier age

d) more women are now engaged in sport

e) the use of ergogenic aids has increased in women

Endurance training increases the muscle's capacity to:

a) contract faster

b) breakdown phosphocreatine

c) burn fat and carbohydrate

d) generate energy anaerobically

e) produce more blood cells

Which of the following factors does not influence success in sport?

a) the ability to tolerate heavy training without succumbing to illness or injury

b) tactics

c) the diet

d) skill

e) the ingestion of carnitine during exercise

Oxford University Press, Online Resource Centre, Chapter 01.