Multiple choice

A fertilized egg increases its rate of cellular respiration and protein synthesis in response to

  1. Sulphur ions

  2. Potassium ions

  3. Calcium ions

  4. Sodium ions

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Calcium ions are released upon fertilization, triggering a wave of metabolic activity in the egg, including increased respiration and protein synthesis.