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FSC Psychology: Biological Basis of Behaviour, questions with answers

Practise 22 real Federal Board questions on Biological Basis of Behaviour from 2023 to 2026. See the answer and explanation as soon as you answer.

22real questions
14multiple choice
5exam sessions

About Biological Basis of Behaviour in FSC Psychology

Biological Basis of Behaviour is one of the 8 main chapters in our Federal Board FSC Psychology question bank (11th class), and about 8% of its real questions come from it. Tayyari Karo has 22 real questions on this chapter from 2023 to 2026; 14 are multiple choice and marked instantly, and the rest are short and long questions with a model answer. By difficulty: 12 medium, 10 easy.

Work through the questions below, then open the explanation for each one. Redo the ones you missed a few days later.

Try 8 real questions

These are real past-paper questions. Think of your answer first, then open the explanation.

2026 Annual · 11th · Biological Basis of Behaviour

The ________ is the fundamental element of the nervous system.

  1. Neuron
  2. Tissue
  3. Spinal cord
  4. Brain
Show answer and explanation

Answer: A. Neuron

The neuron is the basic building block/fundamental unit of the entire nervous system.

2025 1st Annual · 11th · Biological Basis of Behaviour

There are ________ pairs of spinal nerves in total.

  1. 20
  2. 25
  3. 18
  4. 31
Show answer and explanation

Answer: D. 31

Humans have 31 pairs of spinal nerves branching off the spinal cord.

2025 2nd Annual · 11th · Biological Basis of Behaviour

Branch like extensions from the end of a neuron that carry messages to other cells through the neuron is:

  1. Axon
  2. Dendrites
  3. Nerves
  4. Cell body
Show answer and explanation

Answer: B. Dendrites

Dendrites are the branch-like extensions that receive/carry messages from other neurons into the cell.

2024 Annual · 11th · Biological Basis of Behaviour

Which of the following is the Master Gland?

  1. Pineal gland
  2. Pituitary gland
  3. Thyroid gland
  4. Adrenal gland
Show answer and explanation

Answer: B. Pituitary gland

The pituitary gland is called the 'master gland' because it controls the secretions of most other endocrine glands.

2023 Annual · 11th · Biological Basis of Behaviour

Myelin Sheath protects ________ in the neuron.

  1. Axon
  2. Dendrites
  3. Cell body
  4. Nucleus
Show answer and explanation

Answer: A. Axon

The myelin sheath is a fatty insulating layer wrapped around the axon that protects it and speeds up nerve impulse conduction.

2023 Annual · 11th · Biological Basis of Behaviour

If Ali is in emergency situation then which part of nervous system would be activated?

  1. Central
  2. Sympathetic
  3. Para sympathetic
  4. Somatic
Show answer and explanation

Answer: B. Sympathetic

The sympathetic nervous system triggers the 'fight-or-flight' response in emergencies, increasing heart rate and alertness.

2025 1st Annual · 11th · Biological Basis of Behaviour

What is Neuron? Write its various types.

Show model answer

A neuron is the basic structural and functional unit of the nervous system — a specialized cell that receives, processes and transmits information through electrical and chemical (neurotransmitter) signals. It has a cell body (soma) with a nucleus, dendrites that receive signals, and an axon that transmits the signal to other cells.
Types of neurons: (1) Sensory (afferent) neurons — carry information from sense organs to the central nervous system; (2) Motor (efferent) neurons — carry commands from the CNS to muscles and glands; and (3) Interneurons (association neurons) — found within the brain and spinal cord, connecting sensory and motor neurons and processing information between them.

2025 2nd Annual · 11th · Biological Basis of Behaviour

What is meant by autonomic nervous system?

Show model answer

The autonomic nervous system (ANS) is the part of the peripheral nervous system that controls involuntary bodily functions — such as heart rate, digestion, breathing rate, and glandular secretion — without conscious effort. It has two branches that work in balance: the sympathetic nervous system, which activates the body's 'fight-or-flight' response during stress or emergencies (increasing heart rate, releasing adrenaline), and the parasympathetic nervous system, which promotes the 'rest-and-digest' state, calming the body down and conserving energy once the emergency has passed.

Sessions with Biological Basis of Behaviour questions

SessionQuestions
2026 Annual3
2025 1st Annual5
2025 2nd Annual5
2024 Annual4
2023 Annual5

Common questions

What does the Biological Basis of Behaviour chapter cover on this page?

22 real Federal Board (FBISE) Psychology questions on Biological Basis of Behaviour from 2023 to 2026, for 11th class. Each one shows the session it came from.

Are the answers official?

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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