Lesson 4.5.2.1
4.5.2.1 Structure and function Quiz: AQA Biology, Unit 5
20 questions
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Lesson 4.5.2.1, Structure and function: 20 multiple choice questions for the AQA GCSE Biology (8461), Unit 5: Homeostasis and response, written with Revision Ninja.
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The 20 questions
-
Which structure along with the brain forms the central nervous system?
- Sensory neurone
- Spinal cord
- Optic nerve
- Peripheral nerve
-
How is information transmitted along neurones in the nervous system?
- Chemical hormones
- Blood currents
- Electrical impulses
- Magnetic signals
-
What is the primary role of the central nervous system?
- Coordinating responses
- Absorbing nutrients
- Secreting hormones
- Detecting stimuli
-
Which two kinds of effector does the specification name?
- Neurones and receptors
- Lungs and kidneys
- Muscles and glands
- Brain and skin
-
Which neurone carries impulses from a receptor to the CNS?
- Relay neurone
- Sensory neurone
- Motor neurone
- Effector cell
-
Which neurone links the sensory and motor neurones in the CNS?
- Relay neurone
- Receptor cell
- Sensory neurone
- Motor neurone
-
Which neurone carries impulses from the CNS to an effector?
- Relay neurone
- Sensory neurone
- Motor neurone
- Receptor cell
-
What is the junction between two neurones called?
- Axon
- Synapse
- Myelin sheath
- Dendrite terminal
-
Which statement correctly describes a feature of reflex actions?
- They are automatic
- They are voluntary
- They require thinking
- They are slow
-
Which factor is investigated in Required Practical 7 of AQA GCSE Biology?
- Enzyme activity rate
- Human reaction time
- Bacterial growth rate
- Rate of photosynthesis
-
A hand touches a hot object and withdraws quickly. Which pathway is this?
- A reflex arc
- A photosynthesis pathway
- An osmosis pathway
- A hormonal pathway
-
Which neurone is most likely to carry impulses from a heat receptor in the skin?
- Relay neurone
- Synaptic cleft
- Sensory neurone
- Motor neurone
-
What is the main biological function of a reflex action?
- Protecting from harm
- Storing long-term memory
- Processing conscious thought
- Regulating blood glucose
-
Which part of the nervous system would coordinate a withdrawal reflex?
- Pancreas
- Ovary
- Thyroid
- Spinal cord
-
Two reaction times are 0.2 s and 0.4 s. What is the difference between them?
- 0.8 s
- 0.2 s
- 0.1 s
- 0.6 s
-
Ten trials add up to 3.0 s. What is the mean reaction time?
- 30 s
- 3.3 s
- 0.03 s
- 0.3 s
-
Which structural feature allows neurones to transmit electrical impulses rapidly over long distances?
- Thick cell walls
- Short dendrites
- Long axon length
- Large vacuoles
-
Which type of neurone connects sensory neurones to motor neurones inside the central nervous system?
- Relay neurone
- Effector neurone
- Receptor neurone
- Synapse neurone
-
Why do reflex actions occur faster than voluntary actions?
- Bypassing conscious brain
- Using chemical hormones
- Bypassing motor neurones
- Bypassing effectors
-
What is a synapse in the human nervous system?
- Muscle effector organ
- Light receptor cell
- Type of neurone
- Gap between neurones
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