Compare the nervous system with the endocrine system as methods of communication in the human body.

Cambridge International IGCSE Biology (0610) — 14.1 Nervous control in humans · Compare · 4 marks · View as Markdown

Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).

Model answer (4 marks)

Nervous system uses electrical signals (nerve impulses) whereas endocrine system uses chemical signals (hormones). Nervous impulses travel along neurones; hormones travel in the blood. Nervous system responses are rapid/faster; endocrine system responses are slower. Nervous system responses are short‑lived; endocrine system responses are long‑lasting.

Examiner tips

Use the exact terms ‘nerve impulses’ and ‘hormones’.
Show the contrast in speed and duration clearly.
Include the routes of transmission (neurones vs blood).

Common mistakes

Confusing the speed of responses, e.g. saying endocrine is faster.
Omitting the route of signal transmission.

Mark scheme (4 marks)

Nervous system uses electrical signals / nerve impulses; endocrine system uses chemical signals / hormones
Nervous impulses travel along neurones; hormones travel in the blood
Nervous system responses are rapid / faster; endocrine system responses are slower
Nervous system responses are short-lived; endocrine system responses are long-lasting

Key terms in this question

nervous system · endocrine system