FPSC PPSC SST Past Paper of Zoology,Botany,Chemistry

  • FPSC PPSC SST Past Paper of Zoology 

1.Smallest disease causing agents in plants are

Ans: Viroids.

2.The major cell infected by the HIV is lymphocyte

Ans: Helper-T.

3.Pigment present in red algae is Ans:Phycoerythrin.



4. Nutrition in fungi is
Ans: absorptive heterotrophs.

5.Fungi resemble plants because they lack

Ans:centriole.

6. cuscuta is a ______ plant.
Ans : parasitic

7.True roots are absent in
Answer: bryophytes.

8.The mechanism for ATP synthesis is

Answer: chemiosmosis.

9.Enzyme present in the saliva is 
Answer:Ptyalin.

10.Nitrogen is present in 
Answer: Proteins.

FPSC  PPSC SST Zoology  Past Paper  (Solved

11.The food is ground in the cockroach in Answer:gizzard.

12.Operculum is present in 
Answer:bony fish.

13: In frog animal respiratory surface are found in

Answer: more than one organ.

14.The heart is enclosed in a membrane called

Answer:pericardium.

15.From right ventricle blood is pushed into

Answer:pulmonary trunk.
FPSC  PPSC SST Zoology  Past Paper  (Solved


16.proteins are abundant in
Answer: lymph.

17.Jaws without teeth are found in found in Answer:birds.

18. Male reproductive part of flower is Answer:stamen.

19.Coordination in plants is by
Answer: hormones.

20.the simplest fatty acid is 
Answer: acetic acid.

21.All enzymes are proteins which are 
Answer:globular.

22. Cilia are produced from 
Answer: centriole.

23.T.B of the following disease is not caused by

Answer:virus

24.Spirogyra is a --______ alga.
Answer: filamentous

25.Cassia fistula’ is the scientific name of Answer: Amaltas.

26.Phage virus consists of head and _____
Answer: Tail

27.Bacteria without any flagella are called

Answer: atrichous.

28.Protists have been evolved from Answer: prokaryotes.

29.Algae differ from plants in that the sex organs in

Answer: Algae are unicellular.

FPSC  PPSC SST Zoology  Past Paper  (Solved


30. Fungi can absorb food from the substrate

Answer: because they have rhizoids.

31.A seed may be defined as a fertilized Answer : ovule.

32. Platyhelminthes means
Answer:  flat worms.

33.The first land vertebrates were Answer:Amphibian.

34.All life on planet earth is powered by Answer: solar energy.

35.Recombinant DNA is introduced in to host cell

Answer: by means of vector.

36.In cystic fibrosis, the patient lacks a gene that

Answer: codes for trans-membarene carrier of chloride ions 

37. In birds the sex is determined by the type of

Answer: Egg.

38.In RNA nucleotides are attached by

Answer: phosphodiester bond.

39. The chromosome is 
Answer: genes + protein.

40. The human body contains water
Answer: 70-90%.


FPSC  SST Zoology  Past Paper  (Solved

41. Environment is a source of Food, shelter and

Answer: clothing.

42.Fresh water ecosystem covers 
Answer:1%.

43.Foul smell in lake is produced by algae, bacteria and _____
Answer:  fungi.

44. Starch is richly present in 
Answer: cereals.

45. Plants having foreign DNA are known as

Answer: transgenic plants.

46.Nitrogen does not occur in 
Answer: carbohydrates.

47. The basic framework of all types of membranes is 

Answer:lipoproteins.

48. Single membrane bounded organelle is

Answer :lysosome.

49. Irregular grape like cluster of bacilli is called

Answer: staphylo bacilli.

FPSC  SST Zoology  Past Paper  (Solved

50.It is generally accepted that green algae plants

Answer: arose from ancestral.

51. Main energy reserves in the case of green algae are
Answer: starch.

52.The chief component of the cell wall of the

Answer: majority of fungi is chitin.

53 After pollination the pollens are transferred to

Answer .stigma part of the flower.

54. Glyoxisomes contain enzymes for glyoxylate

Answer: Cycle.

55.Vacuoles serve to in expansion and Answer: storage.

56.An isolated virus is not considered living since it

Answer: cannot metabolize.

57. The predominant phycobilin pigment in

cyanobacteria which is of blue color is

Answer : phycocyanin.

58. Deafness is caused by
Answer: misuse of streptomycin.

59. Cell envelope does not include 
Answer: cell membrane.

60.Coenocytes are a fungal body which is multinucleate

Answer: aseptate.

  • English Portion 

  • FPSC PPSC SST Past Paper of Botany

1. Severe deficiency of Vitamin D results in
Answer: rickets.

2.People living in high altitudes (like mountains)

Answer: usually have a larger number of Red Blood Cells.

3. The blood volume average in a adult person is

Answer: about 5 liters.


4.The average internal temperature of human body is
Answer:  37 °C.

5.Vitamin-A is needed for the formation of a ____ pigment in the retina.
Answer:  lightsensitive

6.About 70% of the body weight of a mammal is

Answer: water.

7.On wound White Blood cells fight foreign
particles,
Answer:  like bacteria.

8.Blood is carried towards the heart by
Answer: Veins.

9. Iron is essential for the formation of
Answer:  haemoglobin

FPSC  PPSC SST Botany Past Paper  (Solved


10.Carbohydrates are needed as a source of energy

Answer: for the vital activities of the body.

11.Haemodialysis means cleaning of
Answer: blood.

12.Production of sweat and sebum is related with

Answer: skin.

13.The evaporative cooling in the respiratory tract of dogs is called
Answer:  panting.

14.Bacteria cause disease that can be treated with

Answer: antibiotics.

PPSC   SST Botany Past Paper  (Solved

15.Most cell membranes are composed principally of
Answer: protein and lipids.

16. Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the concentration of water molecules
Answer:  inside and outside the cell.

17.Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of
Answer: active transport.

18.Proteins are made from amino acids by the

Answer: process of dehydration synthesis.

19.Glucose is an organic compound found in most
Answer: cells.

20.Carbon, oxygen, hydrogen and nitrogen are the four most abundant elements in
Answer: living cells.

21.Starch is converted into maltose by
Answer: diastase.

22. Co-enzyme is often formed from
Answer: protein.

23.Messenger RNA is formed in
Answer: nucleus.

24. 1 Number of chromosomes is in
Answer:E.coli.

25 .Protein factory is
Answer: ribosome.

FPSC  SST Botany Past Paper  (Solved


26. The spores in bryophytic plant represent the first cell of the:

(a) Gametophytic generation

(b) Sporophytic generation

(c) Asexual generation

(d) All of these

(e) None of these

27. Algal members of classes Euglenophyceae and chlorophyceae are similar in the:

(a) Cell wall structure

(b) Reserve food

(c) Pigment composition

(d) Structure of flagella

(e) None of these

28.  Crystocarp is a structure developed after fertilization in:

(a) Blue green algae

(b) Actinomycetes

(c) Bryophetes

(d) Red algae

(e) None of these

29. Rice belongs to family:

(a) Malvaceae

(b) Fabiaceae

(c) Solonaceae

(d) Poaceae

(e) None of these

30. Gametophyte of fern is called:

(a) Prothallus

(b) Protocorm

(c) Thallus

(d) Gametangia

(e) None of these

FPSC  SST Botany Past Paper  (Solved


31.The sieve elements are major component of:

(a) Cambium

(b) Apical meristem

(c) Xylem

(d) Phloem

(e) None of these

32.Which one of these is a parasite:

(a) Sunflower

(b) Begonia

(c) Biden

(d) Brasica

(e) None of these

33. Sporophytic generation is borne upon gametophyte and is dependent on it. This feature is present in:

(a) Cycas

(b) Adiantam

(c) Equisetum

(d) All of these

(e) None of these

34. Double fertilization is a typical characteristic of:

(a) Algae (b) Fungi (c) Bryophytes
(d) Angiosperm   (e) All of these

35.Marchantia reproduces vegetatively by:

(a) Apospory (b) Gemma Cup (c) Budding

(d) All of these  (e) None of these

36.  Plant cell wall is composed of:

(a) Cellulose  (b) Polypeptides  (c)Phospholipids   (d) Starch
(e) None of these

37. Stele in which primary vascular tissues are arranged in discrete strands around a pit is called:

(a) Prostele  (b) Radial stele
(c) Centric stele  (d) Eustele
(e) None of these

38.  In which the following edible part is obtained from the Rhizome:
(a) Potato  (b) Ginger  (c) Sugar beet
(d) Onion  (e) None of these

39. Fertilization within an unopened flower is called:

(a) Cleistogramy (b) Cleistocary
(c) Isogamy( d) Oogamy
(e) None of these

40.Meiosis takes place during:

(a) Gamete formation (b) Zygote formation

(c) Cambium formation
(d) All of these (e) None of these


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FPSC  SST Botany Past Paper  (Solved

  • FPSC PPSC SST Past Paper of Chemistry 

1. Enzymes belong to which class of compound—?
Answer: Proteins

2. The helical structure of protein is stabilized by _____?
Answer: H- bond

3. Enzymes have unit
Answer: polypeptide

4. Function of enzymes in biological system is……….?

Answer: catalyze biochemical action

5. Night blindness is produce due to deficiency of …
Answer: Vitamin A

6 Zwitter ion exist in which of the following
Answer: Alanine

7.IR determine ——————–bond
Answer: kind of bond nature

8.Marsh gas is
Answer: Methane CH4

9.Solvent used in IR Spectroscopy is
Answer: carbon tetra chloride CCl4

10 .1700——1760 PEAK In IR Spectroscopy is…………
Answer: carbonyl group

11.NMR use ——————source of radiation
Answer: Radio waves

FPSC PPSC   SST chemistry Past Paper  (Solved
12.Existence of nucleus is discovered____Millikian method or

Answer: alpha scattering by thin metal foil

13.What is fase about electron
Answer: oriented by magnetic field

14.Which one is occur in whole number always
Answer: Atomic number

15.who discovered proton.
Answer: Gold Stein

16.Least soluble in Water Is
Answer: Benzene C6H6

17.The EAN Value of Ni(CO)4 is
Answer : 36

FPSC  SST chemistry Past Paper  (Solved

18.Foundamental particle of an atom
Answer: 3

19. Phenolphthalein is colourless in acidic medium due to __
Answer: Benzenoid

20.The weakest base is
Answer: Cl-

FPSC  SST chemistry Past Paper  (Solved

21.Methane is also known as
Answer: Marsh gas

22.Which one of the following does not give Lassaignes test for nitrogen
Answer: Azobenzene

23.which one the following compound does not explode:
Answer : 2-amine toloune

24. Strongest oxidizing agent is supported by
Answer: high electron affinity

25.  the order of oxidizing agent is
Answer: I<Br<Cl<F

26.rate of chemical reaction is———–when it proceed
Answer: decrease

27.when reactants are added then rate of reaction is
Answer: increase

28.which one of the following metal has highest electrical conductivity
Answer: silver

29.preparation of ice cream is
Answer: colloids excessive cooling

30.colloids are example of —————equilibrium
Answer: heterogeneous equilibrium

FPSC  SST chemistry Past Paper  (Solved

31.pure water is nonconductor of electricity
Answer:water is almost unionized

32.which one of the following aqueous solution conductor of electricity
Answer: HCl

33.Which is correct statement

Answer:Catalyst increase the rate of forward reaction

34.Pick a right statement:
Answer: rder of reaction is in fraction

35.The unit for formation of ammonia from N2+3H………..>2NH3
Answer:Mol-2.lit2
36.The unit of active mass is———–
Answer: Gram atom per litre

FPSC  PPSC SST chemistry Past Paper  (Solved
FPSC  SST chemistry Past Paper  (Solved)

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