Answer
The answers provided here reflect the style and content of a typical Examination Board Mark Scheme. Here is a key to expressions and symbols of a typical Mark Scheme:
Mark schemes usually start by showing the term "Expected Answers" this means the answers expected by the majority of candidates & agreed at a standardisation meeting of examiners.
/ this means that any one part of an answer will meet the criterion for a question
; a semicolon separates parts of an answer
AVP This standards for Alternative Valid Point which allows for an examiner to ask if the point can be awarded a mark
eq this stands for equivalent wording
e.g. 2 of: 2 answers from choice of
( ) bracketed words are not necessary for the mark to be awarded
There are similarities and differences between hormonal and nervous coordination in the body.
(a) Complete the table below to compare the differences between the two systems.
Feature of System | Hormonal |
Nervous |
Method of transmission | Electrical / (along neurones / equivilent wording) / as along potential | Chemical / in the blood |
Speed of transmission | Fast | Slow |
Duration of response | Short | Long |
[ 3 ]
(b) State ONE similarity between the nervous & hormonal systems.
hormones and neurotransmitters are both chemicals or ( ref to) use of receptors
[ 1 ]
[ Total: 4 marks ]