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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) ഏത് സാമൂഹ്യ പരിഷ്കർത്താവിനെ യാണ് സ്നേഹപൂർവ്വം നാണു എന്ന് വിളിച്ചിരുന്നത്?

A) വീട്ടി ഭട്ടതിരിപ്പാട്

B) ചട്ടമ്പിസ്വാമികൾ

C) ശ്രീനാരായണഗുരു

D) അയ്യങ്കാളി

2 / 100

2) 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) 1,2,3,4 ശെരി

B) 1,2,3 ശെരി

C) 1, 2 ശെരി

D) 1, 3, 4 ശെരി

3 / 100

3) Leucocytes are colorless due to ?

A) Lack of water

B) Lack of hemoglobin

C) Presence of Ca+2 ions

D) Presence of white colour pigments

4 / 100

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

A) Remains constant

B) Increases

C) Will be equal to Ψp

D) Decreases

5 / 100

5) Process of Plasmolysis is __?

A) Always reversible

B) Rarely reversible

C) Always irreversible

D) Usually reversible

6 / 100

6) Which statement characterizes a hypotonic solution ?

A) None of these

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

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

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

7 / 100

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

A) Right ventricle

B) Right Atrium

C) Left ventricle

D) Left Atrium

8 / 100

8) Choose the correct relation ____?

A) Ψp = Ψw + Ψp + Ψm.

B) Ψp = Ψw

C) Ψw = Ψs + Ψp

D) Ψs = Ψp + Ψm.

9 / 100

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

A) 0

B) +3

C) +2

D) -3

10 / 100

10) Which one is highly selective ?

A) Active transport and passive transport

B) Simple diffusion and facilitated diffusion

C) Active transport and facilitated diffusion

D) Simple diffusion active transport

11 / 100

11) 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.

12 / 100

12) Water potential gradient is ___?

A) Pressure gradient minus water potential

B) The overall movements of solutes

C) The overall movements of water

D) The evaporation of water from the leaves

13 / 100

13) Four chambered heart is not present in ?

A) Crocodile

B) Birds

C) Mammals

D) Amphibians

14 / 100

14) SOLO taxonomy consists of levels?

A) 4

B) 8

C) 2

D) 6

15 / 100

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

A) From their high concentration to a lower concentration

B) From their low concentration to a higher concentration

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

D) By increasing their diffusing coefficient

16 / 100

16) Open circulatory system is present in ?

A) Chordates

B) Arthropod and molluscs

C) Annelids

D) Humans

17 / 100

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

A) Cassia

B) Lupin

C) Trifolium

D) Indigofera

18 / 100

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

A) Interstitial fluid

B) RBC

C) Serum

D) WBC

19 / 100

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

A) Cell wall + cell membrane

B) Tonoplast + cell membrane

C) Cell wall + Tonoplasts

D) Tonoplasts + Vacuolar membrane

20 / 100

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

A) Lymphocytes >> Acidophils >> basophils >> Neutrophils >>Monocytes

B) Monocytes >> Neutrophils >> lymphocytes >> Acidophils >> basophils

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

D) Neutrophils >> basophils >> lymphocytes >>Eosinophils monocyte

21 / 100

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

A) ഡോ എ ആർ മേനോൻ

B) ചാത്തൻ മാസ്റ്റർ

C) കെ ആർ ഗൗരിയമ്മ

D) ജോസഫ് മുണ്ടശ്ശേരി

22 / 100

22) തിരുവിതാംകൂറിൽ അമേരിക്കൻ മോഡൽ ഭരണഘടന പ്രഖ്യാപിച്ചത്?

A) സ്വാതിതിരുനാൾ

B) സി രാജഗോപാലാചാരി

C) സർ സി പി രാമസ്വാമി അയ്യർ

D) മാർത്താണ്ഡവർമ്മ

23 / 100

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

A) Formal organs

B) All of them

C) Flower in inflorescence

D) Veins and veinlets in a lamina

24 / 100

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

A) O. P. inside the seed is low

B) DPD of seed is very much low

C) OP of water is high

D) Water potential gradient between the seed coat and water

25 / 100

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

A) Osmolarity

B) Active transport

C) Passive transport

D) Diffusion

26 / 100

26) 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

27 / 100

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

A) P -WAVE represent excitation or depolarization of Atria

B) T marks the end of systole

C) QRS Complex represent depolarization of ventricles

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

E) Q marks the beginning of systole

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

G) All are correct

28 / 100

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

A) 2,4,4

B) 3,3,4

C) 2,3,4

D) 2,2,4

29 / 100

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

A) A

B) B

C) AB

D) O

30 / 100

30) Match The Following..

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

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

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

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

31 / 100

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

A) T. P. of cell becomes zero

B) T. P. Increases

C) T. P. of cell decreases

D) Water potential of cell decreases

32 / 100

32) Which is largest among the given lymphocytes?

A) Basophils

B) Eosinophils

C) Monocytes

D) Lymphocytes

33 / 100

33) Conversion of fibrinogen is catalyzed by ?

A) Thrombin

B) Prothrombin

C) All of the above

D) Thromboplastin

34 / 100

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

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

B) Water amount in both regions becomes equal

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

D) Solute amount in both regions becomes equal

35 / 100

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

A) Solanaceae

B) Poceae

C) Liliaceae

D) Fabaceae

36 / 100

36) വൈക്കം സത്യാഗ്രഹികൾക്ക് സൗജന്യ ഭക്ഷണശാല തുടർന്ന് സഹായം നൽകിയത് ആര്?

A) ആസാമീസ്

B) അകാലികൾ

C) കാശ്മീരികൾ

D) ബംഗാളികൾ

37 / 100

37) Osmosis is a specific form of _________?

A) Active transport

B) Diffusion

C) Facilitated diffusion

D) Secondary active transport

38 / 100

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

A) Both above

B) Parasympathetic neural system

C) Sympathetic nervous system

39 / 100

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

A) Ψp = Ψw

B) Ψw = Ψs

C) Ψw = Ψs + Ψp

D) Ψs = Ψw + Ψp

40 / 100

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

A) High T. P.

B) High positive Ψw

C) Low T. P.

D) More negative Ψw

41 / 100

41) When the heart stop beating condition is called ?

A) Heart failure

B) Heart attack

C) Congestive heart Failure

D) Cardiac arrest

42 / 100

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

A) 8

B) 18

C) 12

D) 2

43 / 100

43) For a solution / a cell ___?

A) Ψw is positive but Ψs is negative

B) Both are positive

C) Ψw is negative but Ψs is positive

D) Both Ψw and Ψs are negative

44 / 100

44) Facilitated diffusion _________?

A) Occurs against the concentration gradient

B) Needs a carier protein

C) Is an active process

D) Needs ATP

45 / 100

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

A) Maize

B) Coconut

C) Orchids

D) Casto

46 / 100

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

A) അയ്യങ്കാളി

B) പണ്ഡിറ്റ് കറുപ്പൻ

C) ശ്രീനാരായണഗുരു

D) തൈക്കാട് അയ്യ

47 / 100

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

A) Bulk flow

B) Facilitated diffusion

C) Joined response

D) Pressured movement

48 / 100

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

A) All Of the Above

B) Dead and damaged formed element

C) Fibrin protein

49 / 100

49)

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

A) 4

B) 3

C) 1

D) 2

50 / 100

50) കേവല ഭൂരിപക്ഷം വഴിയുള്ള ഭേദഗതിയെ കുറിച്ച് തെറ്റായ പ്രസ്താവന തിരഞ്ഞെടുക്കുക?

A) ഭേദഗതി നടപടിക്രമം ലളിതമാണ്

B) ഭരണഘടനയുടെ ഈ ഭാഗം വളരെ ദൃഢമാണ്

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

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

51 / 100

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

A) 92 %

B) 29 %

C) 50 %

D) 10 - 15 %

52 / 100

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

A) Hypotonic

B) Isotonic

C) Atomic

D) Hypertonic

53 / 100

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

A) Any of above conditions

B) Rh+ve and Rh -ve

C) Rh -ve and Rh +ve

D) Do not depends on Rh factor

54 / 100

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

A) Both need no ATP

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

C) Both need energy

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

55 / 100

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

A) Increases

B) Decreases

C) Remains the same

D) First increase and then become zero

56 / 100

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

A) AB

B) B

C) A

D) O

57 / 100

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

A) Solute potential

B) Water potential

C) Pressure potential

D) Osmotic potential

58 / 100

58) Water potential of imbibants is___?

A) Highly positive

B) Highly negative

C) Zero

D) Always possible

59 / 100

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

A) They are proteins

B) They are pores in the membrane

C) Movement through them is along the concentration gradient

D) All ions pass through the same type of channel

60 / 100

60) A watermelon has how much water ?

A) More than 92 %

B) 5 litres

C) About 10 to 15 %

D) 100 %

61 / 100

61) 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

62 / 100

62) Transport of organic and inorganic materials is ?

A) First unidirectional then bidirectional

B) Multidirectional

C) Unidirectional

D) Bidirectional

63 / 100

63) When does a concentration gradient exists ?

A) When solute concentration is high

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

C) When solute concentration are low

D) When members rupture

64 / 100

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

A) Facilitated diffusion

B) Na+ - K+ Pump

C) Simple diffusion

D) Active transport

65 / 100

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

A) Both 1 and 2

B) Hormones

C) Nutrients

66 / 100

66) Water potential _____?

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

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 alyays positive

67 / 100

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

A) Method of teaching

B) Teaching strategies

C) Techniques of teaching

D) Maxims of teaching

68 / 100

68) സുപ്രീം കോടതിയുടെ അധികാര പരിധികൾ?

A) അപ്പീൽ അധികാരം

B) ഉപദേശ അധികാരം

C) തനത് അധികാരം

D) ഇവയെല്ലാം

69 / 100

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

A) Blood

B) Serum

C) Plasma

D) None of these

70 / 100

70) Plant absorbents consists of ___?

A) Hydrophilic colloids

B) Hydrophobic colloid

C) Cellulose and pectin

D) Lignin like chemical

71 / 100

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

A) Plasmolysis occurs

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

C) Nothing occurs

D) The cell takes up water and eventually bursts

72 / 100

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

A) Heparin

B) Prothrombin

C) Plasminogen and Calcium together

D) Prothrombin and Calcium together

73 / 100

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

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

B) They have specific binding sites for molecules they transport

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

D) They increase the speed of transport across a membrane

74 / 100

74) 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

75 / 100

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

A) Availability of carrier molecules

B) Temperature

C) All of the above

D) Concentration gradient

76 / 100

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

A) Diffusive ports

B) Symport

C) Uniport

D) Antiport

77 / 100

77) Imbibition is ___?

A) An active transport

B) Diffusion

C) Faciliated diffusion

D) Primary active transport

78 / 100

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

A) Tricuspid valve

B) Semilunar valve

C) Bicuspid valve

D) Mitral valve

79 / 100

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

A) 1

B) 0

C) 10

D) 100

80 / 100

80) 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) Only 5 is correct

B) 1, 2 and 5 are correct

C) 1 and 5 are correct

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

81 / 100

81) 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

82 / 100

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

A) Left and right atria

B) Left atria and right ventricle

C) Left atria and left ventricle

D) Left and right ventricles

83 / 100

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

A) Chalaza

B) Testa

C) Hilum

D) Micropyle

84 / 100

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

A) Rational level

B) Unistructural level

C) Extended abstract level

D) Multistructural level

85 / 100

85) Water potential is ______?

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

B) Equal to pressure potential

C) Equal to O. P.

D) Equal to solute potential

86 / 100

86) Maize grain is a fruit known as ?

A) Caryopsis

B) Achene

C) Legume

D) Cypsela

87 / 100

87) Plasma without clotting factor is called ?

A) Lymph

B) Tissue

C) Semen

D) Serum

88 / 100

88) Syngenesious condition of stamen is found in family ?

A) Liliaceae

B) Malvaceae

C) Cruciferae

D) Asteraceae

89 / 100

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

A) Osmosis

B) Imbibition

C) Diffusion

D) DPD

90 / 100

90) 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 makes Ψw of cell more negative

D) Entry of water increases as the water potential increases

91 / 100

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

A) 18

B) 28

C) 88

D) 8

92 / 100

92) The goal of teaching is ?

A) Desirable change in behavior

B) to give information

C) To impart knowledge

D) To involve pupils in activities

93 / 100

93) Platelets are ?

A) All of these

B) Produced from megakaryocytes

C) Cell fragments

D) Also called thrombocytes

94 / 100

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

A) Electrical charges of the diffusing materials

B) Temperature and concentration gradient

C) Molecular diameter of the diffusing materials

D) Presence of the other substances in the solution

95 / 100

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

A) Diffusion

B) Facilitated diffusion

C) Energy

D) Phospholipid

96 / 100

96) Edible part of apple and pear is___?

A) Epicarp

B) Endocarp

C) Mesocarp

D) Thalamus

97 / 100

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

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

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

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

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

98 / 100

98) 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 & 2

B) 1 Only

C) 3 & 2

D) 2 Only

99 / 100

99) പാർലമെൻറ് എക്സിക്യൂട്ടീവിനെ നിയന്ത്രിക്കുന്ന മാർഗങ്ങൾ?

A) പര്യാലോചനകളും ചർച്ചകളും

B) അവിശ്വാസപമേയം

C) ധനപരമായ നിയന്ത്രണം

D) ഇവയെല്ലാം

100 / 100

100) Two or more aspects are understood in ?

A) Multistructural level

B) Rational level

C) Unistructural lever

D) Extended abstract level

Your score is

The average score is 33%

Exit

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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