(a(i))[2]
These cells need many mitochondria because they carry out lots of aerobic respiration to provide the energy required for converting glucose into glycogen.
(a(ii))[1]
State the kind of biological molecule that catalyses reactions such as the conversion of glycogen to glucose.
(b)[3]
Describe the route by which a fetus gets glucose.
(c(i))[3]
Define the term hormone.
(c(ii))[2]
Calculate the percentage rise in glycogen concentration in the fetus from day 10 to birth in Fig. 4.1. Give your answer to the nearest whole number. Show your working.
(c(iii))[6]
Describe the pattern of glycogen concentration in Fig. 4.1 and explain how fetal hormones bring about these changes. Use data from Fig. 4.1 to support your response.
(d)[3]
Outline three drawbacks of breast-feeding.