(a)[3]
Describe what Fig. 3.1 shows. Support your answer with data.
(b)[2]
Describe two short-term effects that excessive alcohol consumption has on the nervous system.
(c)[1]
State one organ that is damaged by long-term excessive alcohol consumption.
(d(i))[1]
State the pH value at which enzyme activity is highest in Fig. 3.2.
(d(ii))[1]
State the pH value at which enzyme activity is lowest in Fig. 3.2.
(d(iii))[1]
Suggest one further factor that could influence the activity of the enzyme alcohol dehydrogenase.
(e)[2]
Define the term catalyst in your own words.
(f)[2]
Circle the elements contained in all enzymes. calcium carbon hydrogen iodine iron magnesium nitrogen oxygen