Outline consequences of protein deficiency malnutrition.

lack of blood plasma proteins and tissue fluid retention/abdominal bloating/ swollen abdomen;
kwashiorkor/marasmus develops;
poor growth and development (among children);
(often) mental retardation;
lethargic/little interest in surroundings;
wasting of muscle / thin muscles;

A2 (b) was not well answered as many candidates simply listed did not use appropriate scientific terminology.