WASSCE Biology · Paper 1 style

Nervous

One sample question with the full working. 1 more in the app, with instant feedback and repair sessions for the traps below.

The part of the nervous system that includes the brain and spinal cord is the

Acentral nervous system
Bperipheral nervous system
Cendocrine system
Dreflex arc

Show the answer and working

Answer: A

Brain + cord = CNS.

Trap B Confuses parts of the nervous system: Cerebrum: thought, memory, voluntary action. Cerebellum: balance and coordination. Medulla: breathing, heartbeat. Reflex arc: receptor → sensory → relay → motor → effector.

Trap C Mismatches hormones and functions: Insulin (pancreas) lowers blood glucose; ADH (pituitary) reduces urine volume; adrenaline prepares for 'fight or flight'; thyroxine controls metabolic rate.

Trap D Takes one contributing factor as the whole answer: Watch for 'only', 'just', 'mainly'. Ask: is this the MAIN reason, or one contributor? If it would need other things to work (plasma proteins need platelets), it is incomplete.

Traps in Nervous

Confuses parts of the nervous system
Cerebrum: thought, memory, voluntary action. Cerebellum: balance and coordination. Medulla: breathing, heartbeat. Reflex arc: receptor → sensory → relay → motor → effector.
Mismatches hormones and functions
Insulin (pancreas) lowers blood glucose; ADH (pituitary) reduces urine volume; adrenaline prepares for 'fight or flight'; thyroxine controls metabolic rate.
Takes one contributing factor as the whole answer
Watch for 'only', 'just', 'mainly'. Ask: is this the MAIN reason, or one contributor? If it would need other things to work (plasma proteins need platelets), it is incomplete.

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