Join WhatsApp ChannelDaily MCQs & Exam Updates

PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

94 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.
Start PracticingTake a Mock Test
PPSC preparation illustration
All Subjects Biology Chemistry Computer Science Current Affairs English Everyday Science General Knowledge Islamic Studies Mathematics Pakistan Studies Physics
21
Biology Easy

Which type of reproduction in bacteria involves the cell splitting into two equal daughter cells?

  • ABudding
  • BBinary fission
  • CFragmentation
  • DSporulation
Permalink
Correct Answer: Option B — Binary fission
Explanation: Binary fission is the primary method of asexual reproduction in bacteria where a single cell replicates its DNA and divides into two genetically identical daughter cells.
Submitted by: PaperMCQs
22
Biology Medium

What is the function of lysosomes in animal cells?

  • AProtein synthesis
  • BDigestion of waste materials and cellular debris
  • CEnergy production
  • DDNA storage
Permalink
Correct Answer: Option B — Digestion of waste materials and cellular debris
Explanation: Lysosomes are membrane-bound organelles containing digestive enzymes that break down waste materials damaged organelles and foreign substances through a process called autophagy.
Submitted by: PaperMCQs
23
Biology Medium

What is the function of the Golgi apparatus in a cell?

  • AEnergy production
  • BProtein synthesis
  • CDNA replication
  • DModifying packaging and dispatching proteins
Permalink
Correct Answer: Option D — Modifying packaging and dispatching proteins
Explanation: The Golgi apparatus modifies sorts and packages proteins and lipids received from the endoplasmic reticulum and dispatches them to their correct destinations inside or outside the cell.
Submitted by: PaperMCQs
24
Biology Easy

What is the site of protein synthesis in a cell?

  • ARibosome
  • BNucleus
  • CMitochondria
  • DGolgi apparatus
Permalink
Correct Answer: Option A — Ribosome
Explanation: Ribosomes are the cellular organelles responsible for protein synthesis where mRNA sequences are translated into chains of amino acids following the genetic code during translation.
Submitted by: PaperMCQs
25
Biology Medium

What is the process by which cells engulf large particles by wrapping the cell membrane around them?

  • APhagocytosis
  • BOsmosis
  • CDiffusion
  • DPinocytosis
Permalink
Correct Answer: Option A — Phagocytosis
Explanation: Phagocytosis is a type of endocytosis where the cell membrane wraps around large solid particles such as bacteria and engulfs them forming a phagosome inside the cell.
Submitted by: PaperMCQs
26
Biology Medium

Which molecule is the primary energy currency of cells?

  • AATP
  • BADP
  • CNAD
  • DNADP
Permalink
Correct Answer: Option A — ATP
Explanation: ATP or adenosine triphosphate is the primary energy currency of cells storing and providing energy for all cellular processes including metabolism movement and biosynthesis.
Submitted by: PaperMCQs
27
Biology Medium

What is the term for two different alleles for a trait in an organism?

  • AHomozygous
  • BCodominant
  • CDominant
  • DHeterozygous
Permalink
Correct Answer: Option D — Heterozygous
Explanation: Heterozygous describes an organism that has two different alleles for a particular gene one dominant and one recessive with the dominant allele typically expressed in the phenotype.
Submitted by: PaperMCQs
28
Biology Medium

What is the term for two identical alleles for a trait in an organism?

  • AHomozygous
  • BHeterozygous
  • CCarrier
  • DCodominant
Permalink
Correct Answer: Option A — Homozygous
Explanation: Homozygous describes an organism that has two identical alleles for a particular gene either both dominant or both recessive determining the trait expressed in the phenotype.
Submitted by: PaperMCQs
29
Biology Medium

What is the term for an organism that carries a recessive allele but does not show the trait?

  • ADominant
  • BCarrier
  • CHomozygous
  • DHeterozygous
Permalink
Correct Answer: Option B — Carrier
Explanation: A carrier is an organism that is heterozygous for a recessive allele meaning it carries one dominant and one recessive allele and does not express the recessive trait but can pass it to offspring.
Submitted by: PaperMCQs
30
Biology Medium

What is the term for a permanent change in the DNA sequence of an organism?

  • AMutation
  • BAdaptation
  • CVariation
  • DAllele
Permalink
Correct Answer: Option A — Mutation
Explanation: A mutation is a permanent change in the DNA sequence of an organism that can alter gene function and may be inherited by offspring potentially causing genetic disorders or driving evolution.
Submitted by: PaperMCQs
Other Exams
CSS MCQs PMS MCQs FPSC MCQs PPSC MCQs NTS MCQs
Mock Tests
Quick Test (20 Q) Full Mock (60 Q)