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Biology

GCSE · AQA

QuestionsFlashcards

Communicable Diseases
Monoclonal Antibodies
- Producing Monoclonal Antibodies
  6
- Uses of Monoclonal Antibodies
  7
Plant Disease
- Detection and Identification of Plant Diseases
  6
- Plant Defence Responses
  6

Structure & Function Flashcards

All 6 cards in this deck

What are the two parts of the central nervous system (CNS)?: The brain and the spinal cord.
In what form does information travel along neurones?: As electrical impulses.
What is an effector?: A muscle that contracts or a gland that secretes hormones, producing the response.
What is the role of the CNS in coordination?: It receives impulses from receptors and coordinates the response of effectors.
What are the five parts of a nervous pathway, in order? e.g. touching a hot pan: Stimulus → receptor → coordinator (CNS) → effector → response.

e.g. heat → temperature receptor in skin → spinal cord → arm muscle → hand pulls away.
True or false? Receptors and effectors are the same type of structure.: False. Receptors detect stimuli; effectors (muscles or glands) carry out the response.