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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

3901.

Question : Cretinism is caused due to increased secretion of the thyroid hormones in children.

Answer»

Solution :FALSE -Correct Statement: Cretinism is caused DUE to decreased secretion of the THYROID HORMONES in children
Discussion
3902.

Question : Cretinism in young children is due to lack of

Answer»

VITAMIN D
GROWTH HORMONE
calcitonin
thyroxine

Answer :D
Discussion
3903.

Question : Cow,Tiger, Grass.

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SOLUTION :GRASS `to` COW`to` TIGER
Discussion
3904.

Question : Cortex lies between _________ .

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SOLUTION : EPIDERMIS and ENDODERMIS
Discussion
3905.

Question : Correct path of energy flow in a system is

Answer»

producers `rarr` HERBIVORES `rarr` CARNIVORES `rarr` DECOMPOSERS
producers `rarr` carnivores `rarr` herbivores `rarr` decomposers
herbivores `rarr` producers `rarr` carnivores `rarr` decomposers
herbivores `rarr` carnivores `rarr` producers `rarr` decomposers

Answer :A
Discussion
3906.

Question : Correct of the passage of urine is

Answer»

collectingtubule -- ureter - URINARYBLADDER - urethra
convoluted tubule -- LOOP of Henle - URINARY bladder
ureter - uethra - urinary bladder
urethra - urinary bladder - ureter

ANSWER :A
Discussion
3907.

Question : Coronary heart disease is due to

Answer»

Streptococci bacteria
Inflammation of pericardium
Weakening of HEART valves
INSUFFICIENT BLOOD SUPPLY to heart MUSCLES

Solution :Insufficient blood supply to heart muscles
Discussion
3908.

Question : Coralloid roots help the plant

Answer»

ABSORB WATER more efficiently
absorb and fix NITROGEN better
anchorage to the soil
respiration 

Answer :B
Discussion
3909.

Question : Copying of DNA is a part of cellular reproduction.

Answer»


ANSWER :1
Discussion
3910.

Question : Copper-T is a device that prevents

Answer»

FERTILISATION
IMPLANTATION of blastocyst
egg maturation
ovulation

Answer :B
Discussion
3911.

Question : Contraceptive oral pills help in birth control by

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PREVENTING ovulation
KILLING the OVA
killing the SPERMS
forming BARRIERS between sperms and ova

Answer :A
Discussion
3912.

Question : Continuous fever, headache, slow pulse, pain in the stomach, rose colored ashes are the major symptoms of

Answer»

plague
typhoid
mumps
measles

Answer :D
Discussion
3913.

Question : Continuity of germplasm theory by Weismann was proposed in

Answer»

1838
1883
1865
1859

Answer :B
Discussion
3914.

Question : Continued secretion of milk is maintained by

Answer»

prolactin
oestrogen
progesterone
aldosterone

Answer :A
Discussion
3915.

Question : Consumers can be classified as following: (i) Herbivore "" (ii) Carnivore (iii) Secondary carnivore "" (iv) Saprotrophs Amongst the options given, which ones feed on another animal :

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(II) and (III)
(i) and (iii)
(iii) and (IV)
(ii) and (iv)

SOLUTION :(ii) and (iii)
Discussion
3916.

Question : Consumers

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Solution :The animals which DEPEND on producers of other organisms for food are CALLED CONSUMERS.
Discussion
3917.

Question : Construct a food web using the organisms mentioned above.

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SOLUTION :
Discussion
3918.

Question : Construct an aquatic food chain ending with shark.

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SOLUTION : PLANKTON `to` CRAB `to` FISH `to` SHARK
Discussion
3919.

Question : Consider the various options we have when we choose a fuel for cooking our food. Would your choice be different if you lived ………………………..... (a) In a forest? (b) In a remote mountain village or small island? (c) In New Delhi? (d) lived five centuries ago?

Answer»


in a REMOTE mountain village or SMALL island ?

Solution :`{:("We live in",,"Our choice will be"),("(a) in a forest",-,"wood, dry leaves"),("(b) in a remote mountain",-,"wood, dry leaves,"),("village or small island",,"cow-dung cake"),("(c) in New Delhi",-,"LPG, PNG"),("(d) LIVED FIVE centuries",-,"wood ago"):}`
Discussion
3920.

Question : Consider the various options we have when we choose a fuel for cooking our food. What are the criteria you would consider when trying to categorise something as a good fuel ?

Answer»

SOLUTION :The CRITERIA to categorise good fuel for COOKING our FOOD are as follows :
`rarr` It should be easily available.
`rarr` It should be ECONOMICAL.
`rarr` It should not produce smoke or ash.
`rarr` It should have high efficiency.
Discussion
3921.

Question :Conservation of natural resources makes important contribution to the social and economic development of the country.

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ANSWER :TRUE
Discussion
3922.

Question :"Conscious usage of natural resources nowadays is inevitable". Why? Give reasons for you answer.

Answer»

Solution :The human population is increasing at a tremendous rate DUE to improvement in healthcare, the demand for all resources is increasing at an exponential rate. The proper MANAGEMENT can ensure that the natural resources are used judiciously so that they fulfillthe needs of present GENERATION and also last for the generation to come. The proper management can ensure EQUITABLE distribution of natural resources so that all the people can BENEFIT from the development of these resources.
Discussion
3923.

Question : Connecting link between kingdom and class in plant hierarchy is

Answer»

Phylum
Order
Family
Division

Answer :D
Discussion
3924.

Question : Cones of eyes are responsible for

Answer»

VISION of DIM light
differentiating BLACK and white light
binocular vision
vision of bright light

Answer :D
Discussion
3925.

Question : Conducting tissue in Funaria

Answer»

parenchyma
collenchyma 
sclerenchyma
xylem and PHLOEM 

ANSWER :A
Discussion
3926.

Question : Conduct a seminar on child marriages and foeticide.

Answer»

Solution :Child marriages can ALSO be defined as ''any marriage carried out under the age of 18 years and involves the girl who is physically, psychologically, mentally and physiologically immature''.
Causes of Child marriages:
(1) Poverty in the families due to unemployment.
(2) Illiteracy among people.
(3) Ignorance of consequences of child marriages.
(4) Strong superstitions among people about child marriages .
(5) Religious and traditions are also responsible for occurance of child marriages.
Steps to prevent child marriages:
(1) By creating awareness amoung the people about the ill EFFECTS of child marriages.
(2) By educating the people especially in rural AREAS of backward districts.
(3) By providing employment opprtunities to all the people.
(4) Performing live plays, skits and stage shows to create enlightment among the rural illiterate women about the pathetic future of kids who are forced to get married.
Foeticide :
(1) Foeticide is the illegal practice of killing a foetus. Female foeticide is prevalent in our country as a major social evil.
(2) Some kinds of complications in PREGNANCY can also demand surgical termination of pregnancy after 8 weeks of conception.
(3) This is where the abortion is legal and doctors may have to suggest for discontinous of pregnancy for the sake of health of the mother . However the technique of surgical termination is misused by some people by getting rid of the unborn child.
(4) Abortion of foetus is an act of murder. God is the author of LIFE and nobody should have right to take it.
Discussion
3927.

Question : Condom is a mechanical barrier.

Answer»


ANSWER :1
Discussion
3928.

Question : Concentration of harmful chemicals in a food chain is maximum in the

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FIRST LEVEL.
second level.
third level.
TOP level.

Solution :CONCENTRATION of chemicals is MAXIMUM in the top level
Discussion
3929.

Question : Concave lens is used to correct

Answer»

MYOPIA
presbiopia
hypermetropia
cataract

Answer :A
Discussion
3930.

Question : Compute the heat generated which transferring 96000 coulomb of charge in one hour through a potential difference 50V.

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SOLUTION :According to Joule.s law of heating the amount of heat PRODUCED is given by
`H = Vt`
where V = 50 V
I = charge/time = 9600 Coulomb/1hr = `(96000)/(60 xx 60) = 80/30 A`
and t = 1 hr = `60 xx 60 ` sec
So `H = 50 xx 80/30 xx 60 xx 60`
4800000 J
` = 4.8 xx 10^6 J`
Discussion
3931.

Question : Complete the table.

Answer»


Answer :i) Basophil ii) Synthesizes chemicals that destroy FOREIGN bodies III) DESTROYS GERMS iv) Lymphochyte.
Discussion
3932.

Question : Complete the glucose breakdown pathway in case of aerobic respiration by filling the blanks.(a)Name the molecule in the cell which stores the energy produced at the end of the path way.(b) Why do we get cramps during sudden musclar activity ?

Answer»

SOLUTION :(a) Adenosine triphosphate (ATP).
(b)Due to oxygen dificiency during sudden muscular activity ANAEROBIC respiration takes place in musclesresulting in FORMATION of LACTIC ACID accumulationof which causes cramps.
Discussion
3933.

Question : Complete the analogy: Rare species : Musk deer :: Indeterminate species :…………..

Answer»

SOLUTION :GIANT SQUIRREL
Discussion
3934.

Question : Complete metamorphosis occurs in

Answer»

bug
grasshopper
silverfish
butterfly 

ANSWER :D
Discussion
3935.

Question : Compensation point is

Answer»

where there is NEITHER photosynthesis nor respiration
 when there is ENOUGH water just to MEET the requirements of plant
when there is enough water just to meet the requirements of plant
when the entire food SYNTHESISED in photo SYNTHESIS remain unutilised 

Answer :B
Discussion
3936.

Question : Compare the traditional water harvesting system with the probable systems in hilly / mountainous area or plains or plateau regions.

Answer»

SOLUTION :TRADITIONAL water harvesting system in hilly and mountainous area is different from plains and from PLATEAU region.
e.g. In hilly areas like Himachal Pradesh there is a local system of irrigation called Kulhs. The water flowing in the streams is diverted into man-made channels which takes this water to numerous villages down the HILLSIDE.
Whereas water in plains is collected in check dams or tanks, TALS or bundhis.
Discussion
3937.

Question : Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respectto theirstructure and functioning .

Answer»

SOLUTION :DISTINCTION between alveoli and nephron :
`{:("Alveoli ","Nephrom "),("Alveoli have thin-walled balloon-like","Nephron is a cluster of very thin-walled"),("structure, The alveoli PROVIDE a large surface" ,"filtering units FOUND in kidney.Each nrphron"),("area extensively supplied with food","comprises of cup-shaped structure called"),("capillaries for exchangeof gases in lungs.","Bowman.s capsule, convoluted tubules and "),(CO_(2) "is released in the cavity of alveoli and ","collecting duct. Nephron collects the filtered "),(O_(2) "Present in breathed air is taken by ","urine, as well as at the same time the useful"),("haemoglobin present in RBC of blood.","substances present in the filtrateare "),(,"reasbsorbed"):}`
Discussion
3938.

Question : Compare the functioning of alveoli in lungs and nephron in the kidneys with respect to their structure and functioning.

Answer»

Solution :Alveoli structure
• Alveoli are tiny balloon like structure present inside the lungs.
• The walls of the alveoli are one cell thick and it conatins an extensive NETWORK of BLOOD capillaries.
Function
• The exchange of `O_2` & `CO_2` takes place between the blood of the capillaries that surround the alveoli and the gases present in the alveoli.
• Alveoli are the site of gaseous exchange. NEPHRONS structure
• Nephrons are tubular structure present inside the kidneys.
• Nephrons are made of glomerulus, bowman.s càpsule, and a long renal tube.
Function
• The blood enters the kidneys through the renal artery. The blood enters here and the NITROGENOUS waste in the form of URINE is collected by collecting duct.
• Nephrons are the basic filtration unit.
Discussion
3939.

Question : Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.

Answer»

SOLUTION :
Discussion
3940.

Question : Compareandcontrast nervousandhorimonalmechhanismsfor cortraland contraland coordinationsin animals

Answer»

SOLUTION :
Discussion
3941.

Question : Compare and contrast fossil fuel and the sun is direct sources of energy ?

Answer»

Solution :Fossil fuel are ENERGY sources such as coal and petroleum obtained from underneath of earth.s crust they are directly available to human being for use hence fossil fuels are the DIRECT source of energy these are limited in amount these are non renewable sources of energy because three cannot be replenished in nature fossil fuel take millione of years for their formation.
If the present fossil fuel of the earth gets exhausted its formations will take several years. fossil fulls are also very costly.
On the other hand SOLAR energy is a renewable and direct source of energy and will do so for the next five billion years, solar energy is available free of cost to all in UNLIMITED amount it replenishes in the sun itself.
Discussion
3942.

Question :Compare and contrast biomass and hydroelectricity as source of energy.

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SOLUTION :
Discussion
3943.

Question : Compare and contrast fossil fuels and the sun as direct source of energy.

Answer»

SOLUTION :
Discussion
3944.

Question : Compare a monohybrid cross and a reciprocal cross.

Answer»

Solution :Differences between monohybrid CROSS and reciprocal cross.
Monohybrid cross. It is a SINGLE cross between two organisms of a species which is made to study the inheritance of single pair of genes or factors.
Reciprocal cross. It involves two crosses CONCERNING the same CHARACTER but with REVERSED sexes.
Discussion
3945.

Question : Comparative anatomy elucidates

Answer»

the PATH of EVOLUTION
speed of evolution
pattern of evolution
both (a) and (c )

Answer :D
Discussion
3946.

Question : Common feature of human and insect tracheae - pills

Answer»

noncollapsible wall
supporting rings
ectodermal ORIGIN
endodermal origin 

ANSWER :B
Discussion
3947.

Question : Common name of Octopus is

Answer»

CUTTLE fish
devil fish
flying squid
squid 

ANSWER :B
Discussion
3948.

Question : Common energy source in village is

Answer»

ELECTRICITY
coal
biogas
WOOD and ANIMAL DUNG

SOLUTION :wood and animal dung
Discussion
3949.

Question : Common about silk, lac and honey is that these are

Answer»

SECRETIONS of plants
products of INSECTS
products of wingless insects
products of SOCIAL insects 

Answer :B
Discussion
3950.

Question : Commercial source of manufacture of citric acid is

Answer»

CITRUS FRUIT 
Aspergillus
Penicillium
Bacteria 

ANSWER :B
Discussion