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HSA Natural Science Model Exam : 8

HSA Model Exam :NATURAL SCIENCE

KERALA PSC MOCK TEST : PSC TALKZ

HSA Model Exam

Kerala PSC Mock Test :”PRACTICE is that the solely key to administer your Best in any Examination and Kerala PSC wants

Practice ,Practice and Practice , however you prefer it or not!!”

Our Mock test Series facilitate the aspirants to acclimate themselves and to the New Pattern & candidates also can assess their strengths & weaknesses.

So mock test is essentially a practise paper that is completely based on the exam pattern and syllabus.

To improve time management abilities,for instance

After practising with our mock tests on a regular basis, candidates will be able to solve exam problems faster.

To assess one’s ability

However Candidates will be able to gauge their ability by taking our mock examinations, and if they are not happy, they can make attempts to push themselves harder in the preparation process.

So To gain a sense of the exam

Candidates can get a feel for the main exam by completing our sample tests. This will assist the aspiring applicant in overcoming their fears and gain the necessary experience.

to boost productivity

With frequent practise through our sample tests, the chances of making foolish mistakes on the exam will decrease as efficiency improves, For Instance

Assists in the development of the best plan

So Thorough examination of their performance in each mock test will aid in the development of the best test-taking approach and strategy.

and Learn new problem-solving approaches.

Mock tests should be regarded in the same way that so the real tests are and If a student takes the mock test seriously, However he or she will do well on the real exam as well. You will learn and improve your performance with each mock test you take.

Defends against anxiousness

During exam preparation, stress and anxiety are two aspects that go hand in hand and These things can have a negative impact on exam results.

So Exam preparation and confidence are boosted through rigorous mock test practise.

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2 votes, 2.5 avg

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HSA Natural Science Model Exam : 8 ( FEB 7 MONDAY )

🛑 Questions : 100

🛑 Time : 1 Hour 30 Minutes

🛑 സംശയങ്ങൾക്ക് ടെലെഗ്രാമിൽ ബന്ധപ്പെടുക Link

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1 / 100

1) തിരുവിതാംകൂറിൽ അമേരിക്കൻ മോഡൽ ഭരണഘടന പ്രഖ്യാപിച്ചത്?

A) സി രാജഗോപാലാചാരി

B) സ്വാതിതിരുനാൾ

C) സർ സി പി രാമസ്വാമി അയ്യർ

D) മാർത്താണ്ഡവർമ്മ

2 / 100

2) Which of the following limits the movement of molecules when carrier mediated facilitated diffusion is involved ?

A) All of the above

B) Availability of carrier molecules

C) Temperature

D) Concentration gradient

3 / 100

3) Which does not affect the rate of diffusion of a substance ______?

A) Molecular diameter of the diffusing materials

B) Electrical charges of the diffusing materials

C) Presence of the other substances in the solution

D) Temperature and concentration gradient

4 / 100

4) Maize grain is a fruit known as ?

A) Caryopsis

B) Achene

C) Cypsela

D) Legume

5 / 100

5) Plant absorbents consists of ___?

A) Hydrophilic colloids

B) Cellulose and pectin

C) Lignin like chemical

D) Hydrophobic colloid

6 / 100

6) if husband is Rh+ when wife is Rh- negative then................?

1) No problem with first child
2) Second child would have anaemia ( erythroblastosis foetalis )
3) Second child would be normal
4) Both 1 and 2

A) 1 Only

B) 3 & 2

C) 2 Only

D) 1 & 2

7 / 100

Endospermic seeds are found in ?
1 -Barley
2- Castor
3- Pea
4- Both a & b

A) 2

B) 1

C) 3

D) 4

8 / 100

8) Leucocytes are colorless due to ?

A) Presence of white colour pigments

B) Lack of hemoglobin

C) Presence of Ca+2 ions

D) Lack of water

9 / 100

9) Which of the following is correct for standard ECG ?

A) By counting the number of the QRS one can determine the heart rate of an individual

B) QRS Complex represent depolarization of ventricles

C) All are correct

D) T marks the end of systole

E) P -WAVE represent excitation or depolarization of Atria

F) Q marks the beginning of systole

G) T- wave represent the return of ventricle from excited to the normal state (repolarisation)

10 / 100

10) The mineral distribution in tissue fluid is similar to that in?

A) Plasma

B) Serum

C) Blood

D) None of these

11 / 100

11) lymph is an important carrier for the transport of ?

A) Nutrients

B) Hormones

C) Both 1 and 2

12 / 100

12) In plants cell which ones are important determinants of movement of molecules in or out of the cell ___?

A) Tonoplasts + Vacuolar membrane

B) Tonoplast + cell membrane

C) Cell wall + Tonoplasts

D) Cell wall + cell membrane

13 / 100

13) Water channel consists of how many type of aquaporins ?

A) 18

B) 88

C) 8

D) 28

14 / 100

14) Edible part of apple and pear is___?

A) Mesocarp

B) Thalamus

C) Endocarp

D) Epicarp

15 / 100

15) ശക്തമായ ഒരു കേന്ദ്ര ഗവൺമെൻറ് രൂപീകരിക്കുന്നതിനുള്ള പ്രധാന ഘടകങ്ങളെ കുറിച്ചു ശെരിയായ പ്രസ്താവനകൾ തിരഞ്ഞെടുക്കുക?

1. ഭൂപരമായ സംയോജനത്തിനു ഉള്ള അധികാരം

2. അടിയന്തരാവസ്ഥയ്ക്ക് ഉള്ള അധികാരം

3. സാമ്പത്തിക അധികാരങ്ങൾ

4. സ്റ്റേറ്റ് ലിസ്റ്റിൽ നിന്നും നിയമനിർമാണം നടത്താനുള്ള അധികാരം

A) 1,2,3 ശെരി

B) 1, 3, 4 ശെരി

C) 1, 2 ശെരി

D) 1,2,3,4 ശെരി

16 / 100

16) Venation is term used to describe the pattern of arrangement of ?

A) Veins and veinlets in a lamina

B) Flower in inflorescence

C) Formal organs

D) All of them

17 / 100

17) Factors affecting the rate of diffusion are _______?

1) Gradient of concentration
2) Permeability of the membrane
3) Temperature
4) Pressure
5) Size of diffusing material

A) 1 and 5 are correct

B) 1, 2 and 5 are correct

C) Only 5 is correct

D) 1, 2, 3, 4, 5 are correct

18 / 100

18) Water tends to move into a cell that has ____?

A) Low T. P.

B) More negative Ψw

C) High T. P.

D) High positive Ψw

19 / 100

19) SOLO stands for ..........

A) Structure of the observed learning outcome

B) structure of the observed learning output

C) System of the observed learning outcome

D) System of the observed learning output

20 / 100

20) Which of the following methods for transporting substances across a membrane does not involve a change in shape of transport protein ______?

A) Na+ - K+ Pump

B) Facilitated diffusion

C) Simple diffusion

D) Active transport

21 / 100

21) Tricuspid and bicuspid or mitral valve is present in between respectively ?

A) Left ventricle and right Atrium, &right ventricle and left Atrium

B) Right Atrium and right ventricle , &left Atrium and left ventricle

C) Right ventricle and left Atrium & right ventricle and right Atrium

D) Left Atrium left ventricle ,&right Atrium right ventricle

22 / 100

22) ഏത് സാമൂഹ്യ പരിഷ്കർത്താവിനെ യാണ് സ്നേഹപൂർവ്വം നാണു എന്ന് വിളിച്ചിരുന്നത്?

A) ചട്ടമ്പിസ്വാമികൾ

B) അയ്യങ്കാളി

C) ശ്രീനാരായണഗുരു

D) വീട്ടി ഭട്ടതിരിപ്പാട്

23 / 100

23) The placenta is attached to the developing seed near the?

A) Micropyle

B) Chalaza

C) Hilum

D) Testa

24 / 100

24) Endosperm a product of double fertilisation in angiosperms is absent the seeds of____?

A) Orchids

B) Coconut

C) Maize

D) Casto

25 / 100

25) If a pressure greater than atmospheric pressure is applied to pure water or solution, it's water potential __?

A) Decreases

B) Remains the same

C) Increases

D) First increase and then become zero

26 / 100

26) Pressure on plant cell wall caused by osmotic movement of water is called _______?

A) O. P.

B) Hypertonic pressure

C) Tonic pressure

D) T. P.

27 / 100

27) Which of the following is not true of the carrier molecules involved in facilitated diffusion ?

A) They have specific binding sites for molecules they transport

B) They concentrate solute molecules on one side of the membrane

C) They increase the speed of transport across a membrane

D) Transport protein may undergo conformational change upon binding of solutes

28 / 100

28) The process which brings about entry of water into seed coat when seeds are placed in water for germination is ___?

A) Osmosis

B) Diffusion

C) Imbibition

D) DPD

29 / 100

29) Which is largest among the given lymphocytes?

A) Monocytes

B) Eosinophils

C) Lymphocytes

D) Basophils

30 / 100

30) Transport proteins that simultaneously move two molecules across a membrane in the same direction are called ?

A) Uniport

B) Symport

C) Diffusive ports

D) Antiport

31 / 100

31) Osmosis is a specific form of _________?

A) Facilitated diffusion

B) Secondary active transport

C) Diffusion

D) Active transport

32 / 100

32) Match The Following..

A) 1-1, 2-2, 3-3, 4-4, 5-5

B) 1-3, 2-1, 3-2, 4-5, 5-4

C) 1-5, 2-4, 3-2, 4-1, 5-3

D) 1-2, 2-1, 3-4, 4-3, 5-5

33 / 100

33) Water potential gradient is ___?

A) The overall movements of water

B) The evaporation of water from the leaves

C) Pressure gradient minus water potential

D) The overall movements of solutes

34 / 100

34) If a plasmolysed cell has OP = 10, TP = - 2 , It's DPD will be ____?

A) 18

B) 8

C) 2

D) 12

35 / 100

35) If a pressure greater than atmospheric pressure is applied to pure water and a solution, it's " Ψw " value ?

A) Will be equal to Ψp

B) Remains constant

C) Increases

D) Decreases

36 / 100

36) If the external solution balances the osmotic pressure of cytoplasm. It is said to be ___?

A) Hypotonic

B) Isotonic

C) Atomic

D) Hypertonic

37 / 100

37) വൈക്കം സത്യാഗ്രഹികൾക്ക് സൗജന്യ ഭക്ഷണശാല തുടർന്ന് സഹായം നൽകിയത് ആര്?

A) അകാലികൾ

B) ആസാമീസ്

C) കാശ്മീരികൾ

D) ബംഗാളികൾ

38 / 100

38) When a large amount of water enters a plant cell, what happens ___?

A) Entry of water reduces the T. P.

B) Entry of water is opposed by T. P.

C) Entry of water increases as the water potential increases

D) Entry of water makes Ψw of cell more negative

39 / 100

39) Blood group which do not contain any antigen on its surface ?

A) A

B) AB

C) B

D) O

40 / 100

40) Most herbaceous plants have how much dry weight of its total fresh weight ?

A) 29 %

B) 10 - 15 %

C) 92 %

D) 50 %

41 / 100

41) Which Chambers of the heart that has thickest muscular wall ?

A) Left Atrium

B) Left ventricle

C) Right ventricle

D) Right Atrium

42 / 100

42) Which of the following is correct ?

A) Smaller substances diffuse faster

B) Diffusion is rapid over short distance but extremely slow over long distance

C) All

D) Hydrophilic substance cannot pass through cell membrane due to lipid present in the cell membrane

43 / 100

43) When a plasmolysed cell is placed in water or hypotonic solution, what happens ?

A) T. P. of cell decreases

B) T. P. of cell becomes zero

C) T. P. Increases

D) Water potential of cell decreases

44 / 100

44) Which statement characterizes a hypotonic solution ?

A) The solution has a lesser solute concentration that one it is being compared to

B) None of these

C) The solution has equal solute concentration to one it's is being compared to.

D) The solution has a greater solute concentration that the one it is being compared to.

45 / 100

45) Which one is highly selective ?

A) Active transport and facilitated diffusion

B) Simple diffusion and facilitated diffusion

C) Simple diffusion active transport

D) Active transport and passive transport

46 / 100

46) സുപ്രീം കോടതിയുടെ അധികാര പരിധികൾ?

A) തനത് അധികാരം

B) ഇവയെല്ലാം

C) ഉപദേശ അധികാരം

D) അപ്പീൽ അധികാരം

47 / 100

47) Erythroblastosis fortalis can happen if mother and father are respectively ?

A) Any of above conditions

B) Rh+ve and Rh -ve

C) Do not depends on Rh factor

D) Rh -ve and Rh +ve

48 / 100

48) When different types of molecules in a fluid move together in response to a pressure gradient, this is called ________?

A) Pressured movement

B) Bulk flow

C) Joined response

D) Facilitated diffusion

49 / 100

49) Facilitated diffusion _________?

A) Is an active process

B) Occurs against the concentration gradient

C) Needs ATP

D) Needs a carier protein

50 / 100

50) Water potential is ______?

A) Equal to O. P.

B) Equal to pressure potential

C) A tendency of a solution to take up water from another solution across a membrane

D) Equal to solute potential

51 / 100

51) പാർലമെൻറ് എക്സിക്യൂട്ടീവിനെ നിയന്ത്രിക്കുന്ന മാർഗങ്ങൾ?

A) പര്യാലോചനകളും ചർച്ചകളും

B) ധനപരമായ നിയന്ത്രണം

C) ഇവയെല്ലാം

D) അവിശ്വാസപമേയം

52 / 100

52) കേവല ഭൂരിപക്ഷം വഴിയുള്ള ഭേദഗതിയെ കുറിച്ച് തെറ്റായ പ്രസ്താവന തിരഞ്ഞെടുക്കുക?

A) പൗരത്വം സംബന്ധിച്ചിട്ടുള്ള വകുപ്പുകൾ ,സംസ്ഥാനങ്ങളുടെ പേര് ,അതിർത്തിയിൽ മാറ്റം വരുത്തുക തുടങ്ങിയവ ഇതിന് ഉദാഹരണമാണ്

B) ഭേദഗതി നടപടിക്രമം ലളിതമാണ്

C) ഭരണഘടനയുടെ ഈ ഭാഗം വളരെ ദൃഢമാണ്

D) പാർലമെൻറിലെ ഇരുസഭകളും കേവല ഭൂരിപക്ഷത്തോടെ പാസ്സാക്കുന്ന ഇത്തരം ഭേദഗതി ബില്ലുകൾ പ്രസിഡൻറ് അനുമതി നൽകുന്നതോടെ നിയമം ആകുന്നു

53 / 100

53) Which of the following is correct about facilitated Active transport ?

A) Both need carrier proteins which are sensitive to inhibitors that react with protein side chains

B) Both use carbohydrate to move the molecules across the membrane

C) Both need no ATP

D) Both need energy

54 / 100

54) Transport substances across a membrane from an area of lower concentration to an area of higher concentration requires _______?

A) Energy

B) Phospholipid

C) Facilitated diffusion

D) Diffusion

55 / 100

55) Blood group do not contain any antibody in its plasma ?

A) B

B) O

C) A

D) AB

56 / 100

56) The number of Chambers in the heart of fishes amphibian and birds ?

A) 2,3,4

B) 3,3,4

C) 2,4,4

D) 2,2,4

57 / 100

57) Syngenesious condition of stamen is found in family ?

A) Cruciferae

B) Asteraceae

C) Malvaceae

D) Liliaceae

58 / 100

58) A watermelon has how much water ?

A) 100 %

B) More than 92 %

C) 5 litres

D) About 10 to 15 %

59 / 100

59) Choose the correct relation ____?

A) Ψw = Ψs + Ψp

B) Ψp = Ψw + Ψp + Ψm.

C) Ψp = Ψw

D) Ψs = Ψp + Ψm.

60 / 100

60) Open circulatory system is present in ?

A) Chordates

B) Arthropod and molluscs

C) Humans

D) Annelids

61 / 100

61) Process of Plasmolysis is __?

A) Usually reversible

B) Always reversible

C) Rarely reversible

D) Always irreversible

62 / 100

62) പ്രഥമ ഇഎംഎസ് മന്ത്രിസഭയിൽ ഹരിജനക്ഷേമം ത്തിന്റെ യും തദ്ദേശസ്വയംഭരണത്തിന്റെയും ചുമതല വഹിച്ച വ്യക്തി?

A) ജോസഫ് മുണ്ടശ്ശേരി

B) ഡോ എ ആർ മേനോൻ

C) ചാത്തൻ മാസ്റ്റർ

D) കെ ആർ ഗൗരിയമ്മ

63 / 100

63) Which statement about the membrane channel is not true ?

A) Movement through them is along the concentration gradient

B) They are proteins

C) All ions pass through the same type of channel

D) They are pores in the membrane

64 / 100

64) Active transport is important because it can move molecules ________?

A) By increasing their diffusing coefficient

B) From their low concentration to a higher concentration

C) From their high concentration to a lower concentration

D) With less ATP than might otherwise be used to move molecules

65 / 100

65) Imbibition is ___?

A) Primary active transport

B) An active transport

C) Faciliated diffusion

D) Diffusion

66 / 100

66) The rules of presenting the contents to make them easy are called ?

A) Teaching strategies

B) Techniques of teaching

C) Maxims of teaching

D) Method of teaching

67 / 100

67) When the heart stop beating condition is called ?

A) Congestive heart Failure

B) Heart failure

C) Cardiac arrest

D) Heart attack

68 / 100

68) Transport of organic and inorganic materials is ?

A) Multidirectional

B) Bidirectional

C) Unidirectional

D) First unidirectional then bidirectional

69 / 100

69) Clot formed by a network of the thread head injury site is composed of ?

A) Fibrin protein

B) Dead and damaged formed element

C) All Of the Above

70 / 100

70) SOLO taxonomy consists of levels?

A) 2

B) 6

C) 8

D) 4

71 / 100

71) When does a concentration gradient exists ?

A) When solute concentration differ on either side of a membrane

B) When members rupture

C) When solute concentration is high

D) When solute concentration are low

72 / 100

72) Many pulses of daily use belong to one of the families below___?

A) Solanaceae

B) Poceae

C) Liliaceae

D) Fabaceae

73 / 100

73) Water will move from its region of high chemical potential/concentration to its region of lower chemical potential until __?

A) Equilibrium is reached / DPD of both regions becomes same

B) Water amount in both regions becomes equal

C) Amount of both solvent and solutes in both regions becomes equal

D) Solute amount in both regions becomes equal

74 / 100

74) find the correct descending order of percentage proportion of leukocyte in the human blood?

A) Neutrophils >> basophils >> lymphocytes >>Eosinophils monocyte

B) Lymphocytes >> Acidophils >> basophils >> Neutrophils >>Monocytes

C) Monocytes >> Neutrophils >> lymphocytes >> Acidophils >> basophils

D) Neutrophils >> lymphocytes >> Monocytes >> Acidophils >> basophils

75 / 100

75) Seeds when soaked in water, they imbibe it because of ___?

A) O. P. inside the seed is low

B) Water potential gradient between the seed coat and water

C) DPD of seed is very much low

D) OP of water is high

76 / 100

76) Platelets are ?

A) Also called thrombocytes

B) Cell fragments

C) Produced from megakaryocytes

D) All of these

77 / 100

77) Four chambered heart is not present in ?

A) Mammals

B) Crocodile

C) Amphibians

D) Birds

78 / 100

78) When a plant cell is placed in a hypotonic solution, which of the following occurs ?

A) The cell takes up water until the osmotic potential equals the pressure potential of the cell

B) Nothing occurs

C) The cell takes up water and eventually bursts

D) Plasmolysis occurs

79 / 100

79) Water potential of imbibants is___?

A) Zero

B) Highly positive

C) Always possible

D) Highly negative

80 / 100

80) in a living body coagulation of blood in the blood vessel is prevented by ?

A) Plasminogen and Calcium together

B) Prothrombin

C) Heparin

D) Prothrombin and Calcium together

81 / 100

81) Exchange of gases nutrient sector between the fluid and the cells take place through ?

A) Interstitial fluid

B) RBC

C) WBC

D) Serum

82 / 100

82) O. P. of pure water is ______?

A) 0

B) 1

C) 10

D) 100

83 / 100

83) For a solution / a cell ___?

A) Ψw is positive but Ψs is negative

B) Both Ψw and Ψs are negative

C) Both are positive

D) Ψw is negative but Ψs is positive

84 / 100

84) In in birds and mammals the oxygenated and deoxygenated blood is received by?

A) Left and right ventricles

B) Left atria and right ventricle

C) Left atria and left ventricle

D) Left and right atria

85 / 100

85) യാതന അനുഭവിക്കുന്നവരുടെ വിഭാഗത്തിൽനിന്ന് തിരുവിതാംകൂർ ലെജിസ്ലേറ്റീവ് അസംബ്ലിയിലേക്ക് നാമനിർദേശം ചെയ്യപ്പെട്ട ആദ്യ വ്യക്തി?

A) പണ്ഡിറ്റ് കറുപ്പൻ

B) തൈക്കാട് അയ്യ

C) അയ്യങ്കാളി

D) ശ്രീനാരായണഗുരു

86 / 100

86) The goal of teaching is ?

A) To impart knowledge

B) Desirable change in behavior

C) to give information

D) To involve pupils in activities

87 / 100

87) With reference to solo taxonomy one aspect of a task is understood in ?

A) Multistructural level

B) Unistructural level

C) Rational level

D) Extended abstract level

88 / 100

88) The tendency of water to move towards greater solute concentration is the example of ______?

A) Passive transport

B) Osmolarity

C) Diffusion

D) Active transport

89 / 100

89) Two or more aspects are understood in ?

A) Extended abstract level

B) Unistructural lever

C) Rational level

D) Multistructural level

90 / 100

90) Conversion of fibrinogen is catalyzed by ?

A) All of the above

B) Thrombin

C) Thromboplastin

D) Prothrombin

91 / 100

91) What would be Ψp of a fully flaccid cell ?

A) +3

B) 0

C) +2

D) -3

92 / 100

92) Plasma without clotting factor is called ?

A) Lymph

B) Semen

C) Tissue

D) Serum

93 / 100

93) Which of the following plant is used to extract the blue dye ?

A) Cassia

B) Indigofera

C) Trifolium

D) Lupin

94 / 100

94) Which relationship is considered correct for a solution ____?

A) Ψp = Ψw

B) Ψw = Ψs + Ψp

C) Ψw = Ψs

D) Ψs = Ψw + Ψp

95 / 100

95) Which neural signal decreases the heart rate and thereby the cardiac output ?

A) Sympathetic nervous system

B) Both above

C) Parasympathetic neural system

96 / 100

96) Water potential _____?

A) Of a solution is alyays positive

B) Of a solution is always zero

C) Of pure water is zero but of solution is always less than zero

D) Of a solution is always greater that of pure H₂O

97 / 100

97) Roots developed from the parts of the plants other than radicle are called___?

A) Fiberous roots

B) Nodular roots

C) Tap roots

D) Adventitious roots

98 / 100

98) The pressure exerted by the protoplasts due to entry of water against the rigid wall is called __?

A) Water potential

B) Osmotic potential

C) Pressure potential

D) Solute potential

99 / 100

99) Imbibition causes ___?

A) Volume of imbibant increases and pressure develops

B) No change in volume of imbibant but pressure develops

C) Increase in the volume of imbibant but no pressure development

D) Decrease in the volume of imbibant and pressure develops

100 / 100

100) Opening of the right ventricle into Pulmonary artery and that of left ventricle into the aorta is provided with ?

A) Bicuspid valve

B) Tricuspid valve

C) Semilunar valve

D) Mitral valve

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The average score is 33%

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After taking a Mock Test, you should always asses:
1. The time taken to solve every section.
2. The most time consuming questions.
3. The sections that were easiest and hardest for you.
4. Average time taken to solve a section.

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HSA Natural Science Model Exam : 8

HSA Model Exam :NATURAL SCIENCE

KERALA PSC MOCK TEST : PSC TALKZ

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After taking a Mock Test, you should always asses: 1. The time taken to solve every section. 2. The most time consuming questions. 3. The sections that were easiest and hardest for you. 4. Average time taken to solve a section.

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After taking a Mock Test, you should always asses:
1. The time taken to solve every section.
2. The most time consuming questions.
3. The sections that were easiest and hardest for you.
4. Average time taken to solve a section.