Coordination and response — IGCSE Sciences - Co-Ordinated (0973) questions by topic
Coordination and response questions cover a person's physiological response leaving an air-conditioned building, identifying neurone types by their branching structure, homeostatic control of body temperature, and labelling skin structures on a cross-section diagram, worth from 1 to 12 marks.
Identify, state and complete top the command words in this IGCSE Co-ordinated Sciences topic, with explain and describe also frequent: identify a labelled skin structure by its exact letter, not a general region. 18 real questions from 2023 to 2025 papers make up this page. Submit each attempt for instant marking to check a homeostatic process, such as vasodilation, is named correctly at the right stage of the sequence.
May–June 2025, Paper 11
Which row shows effects of adrenaline? heart rate pupil diameter --- --- --- A increases increases B increases no effect C decreases increases D no effect increases
Answer this question and get it marked →May–June 2025, Paper 12
The diagram shows three types of neurone, labelled P, Q and R. P has a many-branched cell body with no long fibre. Q has a cell body at one end with a long fibre ending in…
Answer this question and get it marked →May–June 2025, Paper 21
What is secreted by the pancreas? A glucagon B glucose C glycerol D glycogen
Answer this question and get it marked →May–June 2025, Paper 22
The homeostatic control of body temperature is shown as a flow sequence: 'constant internal body temperature' → 'increase in body temperature' → X → 'constant internal body…
Answer this question and get it marked →May–June 2024, Paper 11
A plant is placed in a box. The box has a hole so that the plant is illuminated from one side. The plant is observed after one week and the shoots have grown towards the light.…
Answer this question and get it marked →May–June 2024, Paper 12
Which row about hormones is correct? A means of transport alimentary canal, where produced glands, site of action target organs B alimentary canal, organs, all organs C blood,…
Answer this question and get it marked →May–June 2024, Paper 22
A person touches a hot object and pulls their hand away. This is a reflex action. What is the pathway for the reflex action? A stimulus - motor neurone - relay neurone - sensory…
Answer this question and get it marked →May–June 2024, Paper 31
Fig. 7.1 shows a cross-section through human skin with parts labelled A to F. Table 7.1 gives information about two of the parts (one produces sweat, one contracts to erect hair).…
Answer this question and get it marked →May–June 2024, Paper 32
A student watches some scary movies. The average pulse rate during each movie and the highest pulse rate are recorded. Table 1.1: movie A (avg 82, highest 122, difference 40); B…
Answer this question and get it marked →May–June 2024, Paper 42
Blood glucose concentration is controlled so that it remains within set limits. State the name given to this type of control.
Answer this question and get it marked →October–November 2024, Paper 31
A seedling is laid on its side. The root grows downwards in response to gravity. State the name of this type of response and the stimulus.
Answer this question and get it marked →May–June 2023, Paper 11
What are the effects of adrenaline? A breathing rate: decrease; pulse rate: decrease; pupil size: widens B breathing rate: decrease; pulse rate: increase; pupil size: narrows C…
Answer this question and get it marked →May–June 2023, Paper 12
A person leaves an air conditioned building. The temperature of the air conditioned building is 16 C. The outside temperature is 39 C. Which statement describes one response to…
Answer this question and get it marked →May–June 2023, Paper 22
The diagram shows an experiment using the shoots of seedlings. A control shoot bends towards the light after five days, while a shoot with a lightproof cover over its tip grows…
Answer this question and get it marked →May–June 2023, Paper 31
A person touches a hot pan and instantly removes their hand. This is a reflex action. The reflex arc is shown in Fig. 10.1 (receptor in skin, neurone X, spinal cord, effector).…
Answer this question and get it marked →May–June 2023, Paper 41
Fig. 1.1 is a diagram of a cross-section of skin with parts labelled A, B, C, D, E, plus an arteriole and a capillary. State the letter in Fig. 1.1 that identifies a part: of the…
Answer this question and get it marked →October–November 2023, Paper 11
One response to a frightening situation is an increase in heart rate caused by the release of adrenaline. Which statement about adrenaline is correct? A It is an enzyme produced…
Answer this question and get it marked →October–November 2023, Paper 21
During an experiment, auxin is applied to one side of a shoot just behind the tip. What will this stimulate? A decreased cell elongation in all cells B decreased cell elongation…
Answer this question and get it marked →Other IGCSE Sciences - Co-Ordinated topics
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