CAIE A-Level Biology A2 15.1.2 Nervous and Endocrine Systems Questions

Compare nervous and endocrine systems using evidence from each question and mark scheme.

Exam points

[Maximum number: 4]

Outline the differences between the endocrine system and the nervous system.

feature	nervous system	endocrine system
communication	action potential / impulse	hormone
nature of communication	electrical and chemical	chemical
mode of transmission	neurone	blood
response destination	muscle	target organs / tissues / cells
transmission speed	faster	slower
location of effect	specific / localised	can be widespread
response speed	faster	slower
duration of effect	short-lived / temporary	can be long-lasting / permanent

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