PPSC Lecturer of zoology Past Paper


1) Chano cysts are found in?

(a) Coelentrate (b) Annelida  (c) Porifera

(d) Arthropoda  (e) All of these

2) House fly is a common insect having ______ legs.

(a) 4 (b) 6 (c) 8 (d) None of these

3) Silver fish is included in:

(a) Pisces  (b) Arthropoda  (c) Annelida (d) None of these

4) Number of vertebrae in neck of a giraffe are:

(a) 10 (b) 5 (c) 7 (d) None of these

5) Flame cell is typical of:

(a) Annelida (b) Chordata  (c) Porifera  (d) Platyhelminthes

(e) None of these

6) Nervous system originates from:

(a) Epidermis (b) Mesodermis  (c) Endodermis  (d) None of these

(e) All of these

7) Mammals are characterized by:

(a) Mammary Glands (b) Hair (c) All of these (d) None of these

8) Nucleus is not present in RBC of:

(a) Fish (b) Snake (c) Bird (d) Mammal

(e) None of these

9) Scales in fish derive their origin from:

(a) Epidermis (b) Mesodermis (c) Endodermis (d) None of these

10) Sound in insect is produced through:

(a) Mouth (b) Tracheal movements (c) Wing beat (d) None of these

11) Sole of foot in man has ______ location:

(a) Dorsal (b) Ventral (c) lateral (d) None of these

12) Coelome in adult mammals is represented by:

(a) Visceral cavity (b) Cavity in brain (c) Both of these (d) None of these

13) The Skelton in insects is:

(a) Exoskeleton  (b) Endoskeleton (c) None of these (d) Both of these

14) Sea horse is included in:

(a) Mammals (b) Fish (c) Reptiles  (d) None of these

15) Circulatory system is open type in:

(a) Annelida (b) Insecta  (c) Mammals (d) None of these

16) The body cavity is regarded as pseudocoele in Nematodes because:

(a) Has ectodermal origin

(b) Not completely lined by Mesodermal epithelium

(c) Has endodermal origin

(d) None of these

(e) All of these

17) True metaneric segmentation is characteristic of:

(a) Molluses  (b) Annelida  (c) Arthropoda (d) None of these

18) Hollow dorsal nervous system is present in:

(a) Amphiexus (b) Fish (c) Mammals (c) None of these

(e) All of these

19) Contractile vacuole in protozoa is mainly responsible for:

(a) Excretion (b) Osmoregulation  (c) respiration (d) None of these

20) Scorpion is included in:

(a) Insecta (b) Arachnida  (c) Echinodermata (d) None of these

21) Cell membrane is formed of:

(a) Carbohydrate (b) Lipid  (c) Protein

(d) Lipoprotein (e) None of these


22) Electron transport chain reaction occur in:

(a) Cell membrane (b) Cell wall (c) Endoplasm

(d) Mitochondrion (e) None of these

23) Ribosomes in cell are responsible for:

(a) Protein formation (b) Glycolysis (c) Lipid breakdown

(d) All of these (e) None of these

24) Golgi complex is responsible for:

(a) Carbohydrate metabolism (b) Protein synthesis (c) Lipid synthesis

(d) None of these (e) All of these

25) Basic excretory chemicals in all the cells is:

(a) Urea (b) Uric acid (c) Ammonia

(d) None of these (e) All of these

26) Oxygen transport from lungs to tissue occurs through:

(a) Difference in pressure (b) Solubility in plasma  (c) Attachment with RBC surface

(d) None of these (e) All of these

27) FSH (Follicle Stimulating Hormone) is produced in:

(a) Ovary (b) Hypothalamus (c) Pituatary

(d) None of these (e) All of these

(28) Lipase is an enzyme responsible for:

(a) Carbohydrate metabolism (b) Lipid breakdown (c) Protein breakdown

(d) None of these

(29) Law of segregation is applicable to:

(a) Homozygous individual (b) Heterozygous individual

(c) Both Homozygous and heterozygous (d) None of these

(30) Sex linked genes concern:

(a) Sex characters (b) Somatic character

(c) Mostly somatic character (d) None of these

(31) XXY individual in man is a phenotypic male, because:

(a) Two X chromosomes are present  (b) Y-chromosome is present

(c) Both X and Y chromosomes are present (d) None of these

(32) Trisomic condition can be produced through:

(a) Primary Non-disjunction (b) Secondary non-disjunction (c) Both a and b (d) None of these

(33) First living organism on this planet was:

(a) A protozoan (b) An algae (c) Bacteria (d) A virus (e) None of these

(34) Theory of Natural Selection was proposed by:

(a) Charles Darwin (b) A.R. Wallace (c) Both a and b (d) None of these

(35) Lamarck’s theory of inheritance of acquired characters says:

(a) Environment forces a character (b) Environment selects a character

(c) Environment has no effect (d) None of these

(36) Orthoselection means:

(a) Selection occurring at different times (b) Selection occurring at different rates

(c) Selection occurring in one direction (d) None of these

(e) All of these

(37) Haeckle’s biogenetic law says:

(a) Ontogeny repeats phylogeny (b) Phylogeny repeats ontogeny

(c) None of these (d) Both a and b together

(38) Ecosystem is a system involving biotic and abiotic components which:

(a) Interact (b) Interact for energy flow (c) No interaction (d) None of these

(39) Nitrogen biogeochemical cycle is regarded as gasous cycle because:

(a) Nitrogen is a gas  (b) Recycling is almost complete

(c) Major part of cycle is in gasous state  (d) None of these

(40) Raw material for evolution are variation, which are produced through:

(a) Gene mutation (b) Chromosomal aberration  (c) Both a and b  (d) None of these

41)  What is the function of contractile vacuole?

(a) respiration (b) reproduction (c) osmoregulation

(d) digestion (e) None of these

42)  Specules are secreted by special mesenchymal amoebocytes called:

(a) scleroblasts (b) microscleres (c) myocytes

(d) collencytes (e) None of these

43)  True nerve cells or ganglion cells occur for the first time in:

(a) Protozoa (b) Porifera (c) Coelenterata

(d) Annelida (e) None of these

44)  The process by which an organism can replace its lost or damaged body parts is called:

(a) reformation (b) regeneration (c) reclamation

(d) reconstruction (e) None of these

45)  Nematocysts are found in:

(a) Protozoa (b) Porifera (c) Annelida

d) Mollusca (e) None of these

(46)  In polychaetes the locomotory organ is:

(a) pseudopodium (b) neuropodium (c) notopodium

(d) parapodium (e) None of these

(47)  Worms belonging to phylum platyhelminthes are commonly known as:

(a) round worms (b) ring worms (c) segmented worms

(d) earth worms (e) None of these

(48)  Bipinnaria is a larval form of:

(a) Coelenterate (b) Polychaeta (c) Echinodermata

(d) Cestoda (e) None of these

(49)  Closed type of circulatory system is found in:

(a) Platyhelminthes (b) Annelida (c) Porifera

(d) Arthropoda (e) None of these

(50)  The two common mosquito genera, Anophelesand Culex, can be easily identified by their:

(a) colour (b) flying speed (c) size

(d) sitting posture (e) None of these

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