A Level Biology - Plant and Animal Responses

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Quiz by slidingtacos
Last updated: November 5, 2018
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First submittedNovember 5, 2018
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Plant hormones which are responsible for control of stem elongation and seed germination
A directional growth response to gravity
A reflex action that straightens the leg when the tendon below the knee cap is tapped
Knee jerk reflex
Any chemical substance released by one living thing, which influences the behaviour or physiology of another living thing
A directional growth response to light
A response that does not involve any processing by the brain
Reflex action
Organic nitrogen-containing bases that have important physiological effects on animals; includes nicotine, quinine, strychnine and morphine
Phenolic compounds, located in cell vacuoles or in surface wax on plants
Components of an ecosystem that are non-living
Abiotic components
Region of the brain dealing with the higher functions such as conscious thought; it is divided into two cerebral hemispheres
Components of an ecosystem that are living
Biotic components
Part of the nervous system responsible for controlling the involuntary motor activities of the body
Automatic nervous system
Region of the brain coordinating balance and fine control of movement
Endocrine gland at the base of the brain, below but attached to the hypothalamus; the anterior lobe secretes many hormones; the posterior lobe stores and releases hormones made in the hypothalamus
Pituitary gland
The motor neurones under conscious control
Somatic nervous system
The sensory and motor nerves connecting the sensory receptors and effectors to the CNS
Peripheral nervous system
A compound in muscle that acts as a store of phosphates and can supply phosphates to make ATP rapidly
Creatine phosphate
Plant hormones which are responsible for regulating plant growth
Muscle under voluntary control
Skeletal muscle
Muscle found in the heart walls
Cardiac muscle
The central part of the nervous system composed of the brain and spinal cord
Central nervous system
Smooth muscle that contracts without conscious control
Involuntary muscle
A secondary messenger released inside cells to activate a response
Cyclic AMP
A directional growth response in which the direction of the response is determined by the direction of the external stimulus
Inhibition of lateral buds further down the shoot by chemicals produced by the apical bud at the tip of a plant shoot
Apical dominance
The structure at which a nerve meets the muscle; it is similar in action to a synapse
Neuromuscular junction
An intracellular enzyme, which is activated by certain hormones
Adenyl cyclase
The part of the brain that controls physiological processes
Medulla oblongata
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