4
The table shows the number of mitochondria in different types of cell.
Type of cell
liver
heart muscle
skin
Number of mitochondria
Which statement best explains the data in the table?
Your answer
1500
5000
100
A Heart muscle cells produce more protein than other types of cell.
B Skin cells need large amounts of energy.
C Liver cells only respire using anaerobic respiration.
D Muscle contraction requires large amounts of energy.