Fig. 3.1 shows organ X together with the blood vessels P, Q and R linked to it. Organ X is involved in amino acid metabolism and in the breakdown of chemical substances, including alcohol.
(a)[4]
Name organ X and the blood vessels associated with it.
(b)[3]
Compare the structure of the blood vessels P and R shown in Fig. 3.1.
(c(i))[1]
Oestrogen is an example of a chemical substance produced by a gland which alters the activity of one or more particular target organs before being destroyed by organ X. Name this type of chemical substance.
(c(ii))[3]
Using oestrogen as the reference, complete Table 3.1.
Worked solution & mark scheme
This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: “the liver” …