Practise 39 real Federal Board questions on Coordination and Control from 2023 to 2026. See the answer and explanation as soon as you answer.
Coordination and Control is one of the 15 main chapters in our Federal Board FSC Biology question bank (12th class), and about 8% of its real questions come from it. Tayyari Karo has 39 real questions on this chapter from 2023 to 2026; 17 are multiple choice and marked instantly, and the rest are short and long questions with a model answer. By difficulty: 37 medium, 2 easy.
Work through the questions below, then open the explanation for each one. Redo the ones you missed a few days later.
These are real past-paper questions. Think of your answer first, then open the explanation.
Cortisol is also called:
Answer: B. Glucocorticoid
Cortisol is the principal glucocorticoid secreted by the adrenal cortex, regulating glucose metabolism and stress responses.
A person experiencing severe stress has an increased heart rate and blood pressure. Which hormone is primarily responsible for this?
Answer: A. Adrenaline
Adrenaline (epinephrine), released from the adrenal medulla during stress ('fight or flight'), raises heart rate and blood pressure.
Which part of the brain acts as the primary control centre for breathing in humans?
Answer: D. Medulla
The medulla oblongata contains the respiratory (rhythmicity) centre that sets the basic breathing rate and rhythm.
Thyrotropin releasing factor (TRF) is produced by:
Answer: C. Hypothalamus
TRF (TRH) is a releasing hormone produced by the hypothalamus that stimulates the anterior pituitary to release TSH.
Which of the following hormones would be expected to bind to receptors located on the inside of a cell?
Answer: A. Testosterone
Testosterone is a lipid-soluble steroid hormone that diffuses through the plasma membrane and binds intracellular receptors; FSH, prolactin and somatotropin are protein hormones that bind surface receptors.
A 30 year old patient shows some symptoms: I. Weakness in left arm; II. Difficulty to speak; III. Loss of blood supply toward brain. The symptoms and diagnosis show that patient is suffering from:
Answer: B. Stroke
Sudden weakness/paralysis, speech difficulty and interrupted blood supply to the brain are the classic hallmark signs of a stroke.
(a) Describe the process of release of neurotransmitters at the synaptic knob. (b) How do neurotransmitters affect the post-synaptic membrane?
(a) When a nerve impulse (action potential) reaches the synaptic knob (axon terminal), it opens voltage-gated Ca²⁺ channels, and Ca²⁺ flows into the terminal. The rise in Ca²⁺ causes synaptic vesicles containing neurotransmitter to move to and fuse with the presynaptic membrane, releasing their neurotransmitter into the synaptic cleft by exocytosis.
(b) The released neurotransmitter diffuses across the cleft and binds to specific receptor proteins on the postsynaptic membrane, opening ion channels there. …
The full model answer is in the app.
(a) Label the parts A and B. (b) Which part of Limbic system regulates autonomic functions? (c) Which part of Limbic system can be called emotional center? And why?
(a) In the diagram, A is the hypothalamus and B is the amygdala.
(b) The hypothalamus regulates autonomic (involuntary) functions such as heart rate, blood pressure, temperature and hunger, acting as the main link between the nervous and endocrine systems.
(c) The amygdala is called the emotional centre because it processes emotional responses — particularly fear and aggression — and links emotional significance to sensory experiences and memories.
| Session | Questions |
|---|---|
| 2026 Annual | 7 |
| 2025 1st Annual | 7 |
| 2025 2nd Annual | 10 |
| 2024 Annual | 7 |
| 2023 Annual | 8 |
39 real Federal Board (FBISE) Biology questions on Coordination and Control from 2023 to 2026, for 12th class. Each one shows the session it came from.
No. We could not find an official FBISE marking scheme for these papers, so the answers and explanations are written by Tayyari Karo for practice. Check anything important with your teacher or textbook.
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