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.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- A2
Exam points
- Compare nervous and endocrine systems.
CAIE A-Level Biology A2 15.1.2 Nervous and Endocrine Systems Questions question 1
[Maximum number: 8]
Compare the endocrine and nervous systems in control and co-ordination in mammals.
Differences between action potentials / impulses and hormones:
| feature | action potential / impulse | hormone |
|---|---|---|
| nature of communication | electrical and chemical | chemical |
| mode of transmission | neurone / nerve cell | blood |
| response destination | muscle / gland | target organs / tissues / cells |
| transmission speed | faster | slower |
| effects | specific / localised | can be widespread |
| response speed | faster | slower |
| duration | short-lived / temporary | can be long-lasting / permanent |
| receptor location | on cell surface membrane | on cell surface membrane or within cell |
Similarities:
- both involve signal molecule binding to receptor ;
- both involve chemicals ;
Max 8.
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