Co-ordination and response Function of Living Organisms

Worked examples (6)

• 1Define a stimulus (Getting started)
• 2Receptor or effector? (Getting started)
• 3Put the co-ordination chain in order (Building confidence)
• 4Compare nervous and hormonal responses (Building confidence)
• 5Explain how a plant responds to light (Stretch)
• 6Apply the co-ordination chain to an example (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Define homeostasis (Getting started)
• 2Give two examples of homeostasis (Getting started)
• 3Why conditions must be kept constant (Building confidence)
• 4The idea of negative feedback (Building confidence)
• 5Define and explain homeostasis (Stretch)
• 6Apply negative feedback to temperature (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1State what a synapse is (Getting started)
• 2Name the chemical that crosses the gap (Getting started)
• 3Order the steps of transmission (Building confidence)
• 4Explain the role of receptors (Building confidence)
• 5Describe transmission across a synapse (Stretch)
• 6Explain one-way transmission (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1State the three parts of a co-ordinated response (Getting started)
• 2Define a stimulus (Getting started)
• 3Receptor in the eye (Building confidence)
• 4Name and describe effectors (Building confidence)
• 5Put the response pathway in order (Stretch)
• 6Apply the chain to a hot object (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Define a tropism and name two stimuli (Getting started)
• 2Classify the phototropic responses (Getting started)
• 3Complete a table of tropic responses (Building confidence)
• 4Explain why the responses help the plant (Building confidence)
• 5Explain shoot bending using auxin (Stretch)
• 6Full explanation with a labelled diagram (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Name the two communication systems (Getting started)
• 2How the nervous system carries messages (Getting started)
• 3How hormones travel and act (Building confidence)
• 4Complete a comparison table (Building confidence)
• 5Choose the system for a response, with reasons (Stretch)
• 6Compare the systems using fight-or-flight (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Name the parts of the CNS (Getting started)
• 2Receptors, impulses and effectors (Getting started)
• 3Put the reflex arc in order (Building confidence)
• 4Hot-object reflex pathway (Building confidence)
• 5Why a reflex is fast and useful (Stretch)
• 6Describe the whole hot-object reflex (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Name the stimulus the eye detects (Getting started)
• 2Match the part to its function (Getting started)
• 3Lens changes for a near object (Building confidence)
• 4Pupil in bright light (Building confidence)
• 5Full accommodation for a near object (Stretch)
• 6Tell accommodation and the pupil reflex apart (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Name the gland that makes adrenaline (Getting started)
• 2Name the gland that makes insulin (Getting started)
• 3State the effects of adrenaline (Building confidence)
• 4Describe how insulin lowers blood glucose (Building confidence)
• 5Compare the effects of adrenaline and insulin on blood glucose (Stretch)
• 6Apply both hormones to a scenario (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Name the process and the normal temperature (Getting started)
• 2Two responses when too hot (Getting started)
• 3Explain vasoconstriction when cold (Building confidence)
• 4Explain how sweating cools you (Building confidence)
• 5Describe the skin's response to a hot day's run (Stretch)
• 6Compare hot and cold responses (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response

Worked examples (6)

• 1Name the hormone made by the testes (Getting started)
• 2State the role of testosterone (Getting started)
• 3Match the female hormones to the ovaries (Building confidence)
• 4Explain progesterone and the uterus lining (Building confidence)
• 5Complete the hormone table (Stretch)
• 6Distinguish oestrogen from progesterone (Stretch)

Model answers (6)

• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style
• ✓Model answer — 4WSD0/1B style — extended open response
• ✓Model answer — 4WSD0/1B style — extended open response