Response and homeostasis official content key terms

organisms

organisms is a curriculum-aligned term linked to the learning objective: Explain why organisms detect internal and external stimuli..

Explain why organisms detect internal and external stimuli interpretation

Interpretation of Explain why organisms detect internal and external stimuli means using a graph, table, diagram or experimental observation to justify a conclusion about Explain why organisms detect internal and external stimuli.

response

response is a curriculum-aligned term linked to the learning objective: Link stimulus detection to responses that increase survival..

Link stimulus detection to responses that increase survival evidence

Evidence for Link stimulus detection to responses that increase survival must be interpreted using data, structures, sequences or observations, then linked to Link stimulus detection to responses that increase survival. use precise biological terminology and link the evidence to the named A-Level Biology process.

external environment

external environment is a curriculum-aligned term linked to the learning objective: Distinguish internal and external environmental changes..

RH-G7 response method evidence

A method using thermoregulation data log must name the independent variable (ambient temperature), dependent variable (skin blood flow) and controlled variable (activity level), then evaluate reliability, uncertainty, validity, sample size and bias before linking to hypothalamic control of heat loss.

response

response is a curriculum-aligned term linked to the learning objective: Relate coordination systems to organism responses..

Relate coordination systems to organism responses evidence

Evidence for Relate coordination systems to organism responses must be interpreted using data, structures, sequences or observations, then linked to Relate coordination systems to organism responses. use precise biological terminology and link the evidence to the named A-Level Biology process.

receptor

receptor is a curriculum-aligned term linked to the learning objective: Explain how receptors convert stimuli into nervous impulses..

Explain how receptors convert stimuli into nervous impulses mechanism

The mechanism of Explain how receptors convert stimuli into nervous impulses explains the causal biological sequence behind Explain how receptors convert stimuli into nervous impulses, not just a memorised definition.

receptor

receptor is a curriculum-aligned term linked to the learning objective: Describe Pacinian corpuscle and retinal photoreceptor function..

Describe Pacinian corpuscle and retinal photoreceptor function interpretation

Interpretation of Describe Pacinian corpuscle and retinal photoreceptor function means using a graph, table, diagram or experimental observation to justify a conclusion about Describe Pacinian corpuscle and retinal photoreceptor function.

action potential

action potential is a curriculum-aligned term linked to the learning objective: Explain resting potential, action potential and nerve impulse transmission..

RH-B2 response method evidence

A method using axon membrane potential trace must name the independent variable (stimulus strength), dependent variable (membrane potential) and controlled variable (temperature), then evaluate reliability, uncertainty, validity, sample size and bias before linking to depolarisation and repolarisation.

neuromuscular junction

neuromuscular junction is a curriculum-aligned term linked to the learning objective: Explain synaptic transmission and neuromuscular junctions..

Explain synaptic transmission and neuromuscular junctions evidence

Evidence for Explain synaptic transmission and neuromuscular junctions must be interpreted using data, structures, sequences or observations, then linked to Explain synaptic transmission and neuromuscular junctions. use precise biological terminology and link the evidence to the named A-Level Biology process.

muscle

muscle is a curriculum-aligned term linked to the learning objective: Explain sliding filament theory in skeletal muscle contraction..

Explain sliding filament theory in skeletal muscle contraction mechanism

The mechanism of Explain sliding filament theory in skeletal muscle contraction explains the causal biological sequence behind Explain sliding filament theory in skeletal muscle contraction, not just a memorised definition.

negative feedback

negative feedback is a curriculum-aligned term linked to the learning objective: Explain homeostasis using negative feedback..

RH-C3 response method evidence

A method using synapse drug trial must name the independent variable (drug concentration), dependent variable (postsynaptic response) and controlled variable (synapse preparation age), then evaluate reliability, uncertainty, validity, sample size and bias before linking to neurotransmitter diffusion and receptor binding.

RH-H8 response method evidence

A method using plant shoot curvature assay must name the independent variable (direction of light), dependent variable (angle of curvature) and controlled variable (shoot length), then evaluate reliability, uncertainty, validity, sample size and bias before linking to auxin redistribution.

RH-E5 response method evidence

A method using stomatal aperture micrograph must name the independent variable (light intensity), dependent variable (stomatal aperture) and controlled variable (leaf age), then evaluate reliability, uncertainty, validity, sample size and bias before linking to guard cell response to water potential.

RH-F6 response method evidence

A method using muscle spindle reflex record must name the independent variable (tap force), dependent variable (response time) and controlled variable (participant posture), then evaluate reliability, uncertainty, validity, sample size and bias before linking to reflex arc coordination.

RH-D4 response method evidence

A method using kidney filtrate table must name the independent variable (water intake), dependent variable (urine concentration) and controlled variable (dietary salt), then evaluate reliability, uncertainty, validity, sample size and bias before linking to selective reabsorption and osmoregulation.

osmoregulation

osmoregulation is a curriculum-aligned term linked to the learning objective: Explain kidney nephron function and osmoregulation..

Explain kidney nephron function and osmoregulation evidence

Evidence for Explain kidney nephron function and osmoregulation must be interpreted using data, structures, sequences or observations, then linked to Explain kidney nephron function and osmoregulation. use precise biological terminology and link the evidence to the named A-Level Biology process.

RH-I9 response method evidence

A method using homeostasis feedback loop must name the independent variable (controlled variable change), dependent variable (effector response) and controlled variable (measurement interval), then evaluate reliability, uncertainty, validity, sample size and bias before linking to receptor-coordinator-effector sequence.

RH-A1 response method evidence

A method using blood glucose graph after insulin injection must name the independent variable (dose of insulin), dependent variable (blood glucose concentration) and controlled variable (time after injection), then evaluate reliability, uncertainty, validity, sample size and bias before linking to negative feedback by pancreatic hormones.