Enzymes are ______...? Mcqs

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Enzymes are ______...?

(A) Steroid in nature
(B) Protein in nature

(C) Lipid in nature
(D) Carbohydrate in nature

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In the Composition of the earth, Aluminum is _______________...?

(A) 27.5%
(B) 20.3%

(C) 14.5%
(D) 8.23%

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Summer solstice means__________...?

(A) longest day
(B) longest night

(C) smallest day
(D) none of these

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The pyramid of energy in any ecosystem is _________...?

(A) Always upright
(B) May be upright or invented

(C) Always inverted
(D) Always Circle

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The part of an eye acting as a diaphragm of camera is ______...?

(A) Cornea
(B) Lens

(C) Iris
(D) Retina

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By which process copper is refined ____________...?

(A) Roasting
(B) Oxidation

(C) Zone Refining
(D) Electrolysis

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The biggest planet in solar system is ______ and having _____ moons...?

(A) Uranus , Sixteen
(B) Jupiter, Seventy-nine

(C) Saturn, Sixteen
(D) Uranus, two

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Newton's law of gravitation is consistent with Newton's _________ law of motion....?

(A) 1st
(B) 2nd

(C) 3rd
(D) All of them

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The SI unit of Dipole moment is __________...?

(A) Debye
(B) Cm

(C) Weber
(D) Coulumb

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Second highest layer of Earth's atmosphere is _______...?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Thermosphere

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The symbol denotes the proton number is ______...?

(A) P
(B) N

(C) Z
(D) A

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The type of lens in our eye is ______...?

(A) Convex
(B) Concave

(C) Both a & b
(D) None of these

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When a light ray enters from a denser medium to a rare medium, it bends ______...?

(A) Perpendicular to normal
(B) Parallel to normal

(C) Toward normal
(D) Away from normal

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The altitude on stratosphere is ______...?

(A) 40 to 45 km
(B) 50 to 55 km

(C) 60 to 65 km
(D) 70 to 75 km

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Atmospheric pressure decrease rapidly with altitude because the air becomes_______ ...?

(A) Colder
(B) Less denser

(C) Rich in Ozone
(D) Warmer

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Flame test of Copper Halide with bluish-green color identify the presence of ______...?

(A) Halogen
(B) Hydrogen

(C) Copper
(D) B and C

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The part of an eye acting as a black point of camera is ______...?

(A) Sclera
(B) Retina

(C) Optic disc
(D) Choroid

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A term biotype means ___________...?

(A) all individuals having same phenotype
(B) all individuals having same genotype

(C) all individual with different phenotype
(D) all individuals with different genotype

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A saturated solution of KCl on heating becomes _______...?

(A) Unsaturated
(B) Supersaturated

(C) Diluted
(D) All of these

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The S. I. unit of refractive index is _______...?

(A) meter
(B) cm

(C) watt
(D) no unit

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An example of rhizome is_________...?

(A) Carrot
(B) Tomato

(C) Ginger
(D) Garlic

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A piece of matter in pure form is termed as ______...?

(A) Redical
(B) Mixture

(C) Compound
(D) Substance

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Pluviometer measures ___________...?

(A) Wind
(B) Strength of Plywood

(C) Rainfall
(D) None of these

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When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...?

(A) 48.8°
(B) 50.0°

(C) 49.1°
(D) 51.0°

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The turn ratios of a transformer is 10. It means ______...?

(A) Is = 10 Ip
(B) Np - 10Ns

(C) Ns = 10 Np
(D) Vs = 10 Vp

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When one atom forms cation by losing electron and other forms anion by accepting that electron then bond form between them is ______...?

(A) Covalent bond
(B) Ionic bond

(C) Coordinate covalent bond
(D) Hydrogen bond

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The type of seed production without fusion of male and female gametes is ______...?

(A) Parthenocarpy
(B) Apomixes

(C) Grafting
(D) Scion

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Atom was a name given by ____________ ...?

(A) Democritus
(B) Bohr

(C) Rutherford
(D) Archimedes

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Two capacitors of 8µF are connected in series then the equivalent capacitance is ______...?

(A) ¼ µF
(B) 2 µF

(C) 3 µF
(D) 4 µF

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Gravity setting chambers are used in industries to remove ________...?

(A) NOx
(B) SOx

(C) CO
(D) Suspended particulate matter

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The major source of quick energy is ___________...?

(A) Carbohydrates
(B) Minerals

(C) vitamins
(D) None of these

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Alkenes ______...?

(A) Show the same general formula as alkynes
(B) Have carbon-carbon triple bond

(C) Have carbon-carbon double bond
(D) Are saturated hydrocarbons

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Ozone layer prevents ______________ radiation from entering the atmosphere...?

(A) Infra-red
(B) Ultraviolet

(C) X-rays
(D) Gamma rays

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A Barometer is device used to measure ______...?

(A) Humidity
(B) Atmospheric Pressure

(C) Room Temperature
(D) Salt in sea water

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Scurvy is caused due to the deficiency of ___________...?

(A) Vitamin A
(B) Vitamin D

(C) Vitamin C
(D) None of these

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Oscillations are damped due to the presence of ______...?

(A) Linear motion
(B) Restoring force

(C) Frictional force
(D) Mechanical force

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Winter Solstice means____________...?

(A) longest night
(B) longest day

(C) smallest night
(D) smallest day

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The main function of the kidney is ____________...?

(A) To control blood pressure
(B) To control body temperature

(C) To remove waste product from the body
(D) To help in digestion of food

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Inspiration involves ______...?

(A) Contraction of intercostals muscles
(B) Contraction of diaphragm

(C) Inward movement of ribs
(D) Both a and b

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Afternoon rains in the equatorial region are the result of influences _______...?

(A) Land Breeze
(B) Monsoon

(C) Frontal
(D) Convectional

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Deficiency of __________ causes loss of appetite and poor growth...?

(A) zinc
(B) iodine

(C) copper
(D) iron

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Escape velocity depends on ________...?

(A) Mass of the object trying to escape
(B) Radius of the planet or celestial body

(C) Both mass and radius of the planet or celestial body
(D) The velocity of the rotating planet

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The medical branch of science that deals with the study of skin, its functions, diseases, & treatment is ________ ...?

(A) Dermatology
(B) Dormatology

(C) Deontology
(D) Dermatoglyphics

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The density of gases increases when its ______...?

(A) Pressure increased
(B) Temperature increased

(C) Volume increased
(D) None of these

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The most abundant element in the universe is __________....?

(A) Oxygen
(B) Hydrogen

(C) Carbon Dioxide
(D) Silicon

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Atmospheric pressure at sea level is _______...?

(A) 746 mm
(B) 760 mm

(C) 820 mm
(D) None of these

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Diamond is a very expensive ornament. It is composed of a single element ___________...?

(A) Carbon
(B) Gold

(C) Silver
(D) Platinum

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Colour of the plants is green due to the presence of _________....?

(A) Carbon dioxide
(B) Chlorophyll

(C) Urea
(D) Oxygen

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Largest moon in our solar system is ________...?

(A) Deimos
(B) Ganymede

(C) Phobos
(D) Arche

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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Fan was invented by___________...?

(A) Arthur Schimit
(B) Alfered Nobel

(C) Skaats Wheeler
(D) None of these

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Spring balance is used to measure _________...?

(A) Mass
(B) Weight

(C) Elasticity
(D) Density

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A D.C motor converts _______...?

(A) Mechanical energy into electrical energy
(B) Mechanical energy into chemical energy

(C) Electrical energy into mechanical energy
(D) Electrical energy into chemical energy

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Drugs that slow normal brain functioning are categorized as ______...?

(A) Narcotics
(B) Hallucinogen

(C) Marijuana
(D) Sedatives

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A chronometer meter measures __________ ...?

(A) Water waves
(B) Color contrast

(C) Time
(D) Sound waves

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Two resistances of 6 Ω and 12 Ω are connected in parallel. Their net resistance is ______...?

(A) 7 Ω
(B) 6 Ω

(C) 4 Ω
(D) 5 Ω

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During which process does heat transfer occur because of density differences__________...?

(A) Convection
(B) Radiation

(C) Conduction
(D) None of these

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Polyethene is ______...?

(A) Oil
(B) Paper

(C) Plastic
(D) Wood

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An Average Hummingbird’s heart rate per minute is __________....?

(A) 500 times
(B) 1000 times

(C) more than 1000 times
(D) more than 1200 times

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Zero error of the instrument is _______...?

(A) Systematic error
(B) Human error

(C) Random error
(D) Classified error

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The error caused by improper functioning of instrument is ______...?

(A) Determinant Error
(B) Systematic Error

(C) Indeterminant
(D) A and B

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Other name of platelets _______...?

(A) Erythrocytes
(B) Leukocytes

(C) thrombocytes
(D) None of these

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The point within the Earth where earthquakes originate is _________...?

(A) Comma
(B) Origin

(C) Epicenter
(D) Focus

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Volvox is a polyphyletic genus of _______...?

(A) Green algae
(B) Red algae

(C) Brown algae
(D) None of these

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The activity in relation to changes in environment is ______...?

(A) Stimulus
(B) Response

(C) Both a & b
(D) None of these

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Enzyme changes in pH can cause enzymes to ______...?

(A) Denature
(B) Activate

(C) Inhibit
(D) Stabilize

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The main factor for determining a region’s climate is ___________...?

(A) Latitude
(B) Temperature

(C) Longitude
(D) None of them

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At night, Plants intake __________ and release __________...?

(A) Oxygen – Carbon dioxide
(B) Carbon dioxide – Oxygen

(C) Oxygen – Carbon monoxide
(D) None of theseCarbon monoxide – Oxygen

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A set of metabolism reaction which maintain internal environment is ______...?

(A) Positive feedback
(B) Negative feedback

(C) Osmoregulation
(D) Homeostasis

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Mohus scale is used for to measure ____________...?

(A) Hardness
(B) Humidity

(C) Pressure
(D) Temperature

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Permanent hardness of water is due to the presence of __________...?

(A) Sodium bicarbonate
(B) Calcium sulfate

(C) Calcium bicarbonate
(D) None of these

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A loudspeaker changes _________ energy into sound energy....?

(A) Chemical
(B) Electrical

(C) Light
(D) Kinetic

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The Summer solstice in the Northern Hemisphere happens on: __________...?

(A) 21 July
(B) 22 December

(C) 22 March
(D) 21 June

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The book “Kitab-ul-manazir” was written by ______...?

(A) Jabir bin Hayan
(B) Ibn-al-Haitham

(C) Ali Ibn-Isa
(D) Bu-Ali Sina

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The part of brain involved in balance and precision in movements is ______...?

(A) Cerebrum
(B) Cerebellum

(C) Thalamus
(D) Medulla oblongata

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Silver fish is the name of__________...?

(A) Insect
(B) Fish

(C) Bird
(D) Mammal

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The number of spark plugs needed in a diesel engine is ______...?

(A) Zero
(B) 1

(C) 2
(D) 4

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An active asteroid is discovered near ________ Orbit for the first time in billion years....?

(A) Saturn
(B) Mars

(C) Neptune
(D) Jupiter

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