Paper 2 · Cell organelles, plant and animal cells
Why does a sperm cell contain large amounts of mitochondria?
ATo store food reserves for the developing embryo, a role instead carried out by the yolk in the egg cell
BTo produce energy required for the motility (swimming) of the sperm
CTo produce haemoglobin for oxygen transport, a role carried out by red blood cells, not sperm
DTo synthesise the cell wall surrounding the sperm, though sperm, like other animal cells, have no cell wall
Explanation: Mitochondria produce the energy needed for sperm motility.
Derived from ZIMSEC Biology 4025/2 Paper 2 Theory, June 2019, Q2
