WorksheetsYear 10 Combined Science Cycle 2 B10 knowledge checker
Total questions: 10
Worksheet time: 17mins
What is homeostasis?
the regulation of the internal conditions of a cell or organism
the regulation of the external environment of a cell or organism
the variation of the internal conditions of a cell or organism
the variation of the external environment of a cell or organism
What is the correct term for the specialised cells that detect changes in the external environment?
Effectors
Co-ordination centres
Receptors
Detectors
What is the correct term for the muscles and glands that bring about responses in the body?
Effectors
Co-ordination centres
Receptors
Detectors
What does the central nervous system consist of?
The brain
The sense organs
Muscles and glands
The brain and spinal cord
What do we call the cells of the nervous system that are specialised to carry electric impulses around the body?
Neurons
Synapses
Neurones
Reflexes
Which option shows the correct sequence of events in a reflex arc?
stimulus---receptor---relay neurone in the CNS---sensory neurone---motor neurone---effector
stimulus---receptor---motor neurone---relay neurone in the CNS---sensory neurone---effector
stimulus---effector---sensory neurone---relay neurone in the CNS---motor neurone---receptor
stimulus---receptor---sensory neurone---relay neurone in the CNS---motor neurone---effector
What is the correct term for the junction between 2 neurones?
Neurotransmitter
Synapse
Dendrite
Cell body
How is a nerve impulse transmitted across a synapse?
Small pixies carry the impulse across the gap
Osmosis
An electrical impulse
Chemicals called neurotransmitters
As organisms get more complex, cells become specialized to perform specific functions in the body. What is the function for the cell shown?
contract and shorten movement
provide coverage and protection
carry impulses around the body
connects parts together
Reflex actions are important because
They provide a quick, involuntary response
They prevent injury
They are essential to the survival of organisms
All of the above
