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PPSC MCQs

Punjab Public Service Commission β€” Complete MCQ Bank

1,262 Questions
Exam Preparation Guide

How to prepare for PPSC

PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.

Punjab AffairsGeneral KnowledgeCurrent AffairsEnglish
Give special attention to Punjab geography, history and administration alongside the advertised post’s specialist syllabus.
PPSC preparation illustration
201
Biology Medium

Which hormone regulates blood glucose levels by promoting its uptake by cells?

  • AGlucagon
  • BAdrenaline
  • CThyroxine
  • DInsulin
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Correct Answer: Option D β€” Insulin
Explanation: Insulin produced by the beta cells of the pancreas lowers blood glucose levels by promoting its uptake by body cells and stimulating its conversion to glycogen in the liver.
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202
Biology Medium

Which gland is called the master gland of the endocrine system?

  • AThyroid gland
  • BPituitary gland
  • CAdrenal gland
  • DPancreas
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Correct Answer: Option B β€” Pituitary gland
Explanation: The pituitary gland is called the master gland because it secretes hormones that regulate the activity of other endocrine glands including the thyroid adrenal and reproductive glands.
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203
Biology Medium

What is the chemical messenger secreted by endocrine glands into the bloodstream called?

  • AHormone
  • BEnzyme
  • CNeurotransmitter
  • DAntibody
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Correct Answer: Option A β€” Hormone
Explanation: Hormones are chemical messengers secreted by endocrine glands directly into the bloodstream and transported to target organs where they regulate physiological processes.
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204
Biology Medium

Which part of the brain controls vital involuntary functions such as breathing heart rate and blood pressure?

  • ACerebrum
  • BCerebellum
  • CThalamus
  • DMedulla oblongata
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Correct Answer: Option D β€” Medulla oblongata
Explanation: The medulla oblongata located in the brainstem regulates vital involuntary functions including breathing heart rate blood pressure and reflexes essential for survival.
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205
Biology Medium

Which part of the human brain controls balance and coordinates muscular movement?

  • ACerebellum
  • BCerebrum
  • CMedulla oblongata
  • DThalamus
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Correct Answer: Option A β€” Cerebellum
Explanation: The cerebellum coordinates voluntary movements maintains balance and posture and fine-tunes motor activities by processing information from the sensory systems and other brain areas.
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206
Biology Medium

Which part of the human brain is responsible for voluntary movement and higher cognitive functions?

  • ACerebellum
  • BMedulla oblongata
  • CCerebrum
  • DHypothalamus
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Correct Answer: Option C β€” Cerebrum
Explanation: The cerebrum is the largest part of the human brain responsible for voluntary movement perception memory language reasoning and other higher cognitive functions.
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207
Biology Medium

What is the term for organisms that cannot make their own food and must consume other organisms?

  • AAutotrophs
  • BHeterotrophs
  • CProducers
  • DChemotrophs
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Correct Answer: Option B β€” Heterotrophs
Explanation: Heterotrophs are organisms that cannot synthesise their own food and must obtain energy and organic nutrients by consuming other organisms and include animals fungi and most bacteria.
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208
Biology Medium

What is the term for organisms that can make their own food through photosynthesis?

  • ADecomposers
  • BConsumers
  • CHeterotrophs
  • DAutotrophs
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Correct Answer: Option D β€” Autotrophs
Explanation: Autotrophs are organisms that produce their own organic food from inorganic substances using energy from sunlight through photosynthesis or from chemicals through chemosynthesis.
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209
Biology Medium

Which type of reproduction involves only one parent and produces genetically identical offspring?

  • ASexual reproduction
  • BBudding only
  • CCross-pollination
  • DAsexual reproduction
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Correct Answer: Option D β€” Asexual reproduction
Explanation: Asexual reproduction involves a single parent producing genetically identical offspring through processes such as binary fission budding fragmentation or vegetative propagation.
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210
Biology Medium

What is the process by which species change over time through natural selection?

  • AAdaptation
  • BEvolution
  • CMutation
  • DSpeciation
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Correct Answer: Option B β€” Evolution
Explanation: Evolution is the process by which populations of organisms change over successive generations through natural selection mutation genetic drift and gene flow.
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