Explore topic-wise InterviewSolutions in .

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.

1.

Question : Which is the mode of feeding of cockroaches ?

Answer»

Sucking BLOOD
Sucking milk
BITING and CHEWING
Lapping liquid FOOD

ANSWER :C
2.

Question : Which is the major nitrogenous waste product in human beings? How is it removed from the body?

Answer»

SOLUTION :The major nitrogenous waste product in human BEINGS is urea. Urea is removed/ eliminated from the BODY through urine.
3.

Question : Longest cell in the human body

Answer»

SOLUTION :The LONGEST cell of HUMAN BODY is AXON.
4.

Question : Which is the largest known tree in the plant kingdom?

Answer»

PINUS
sequoia
metasequinea
cedrus 

ANSWER :B
5.

Question : Which is the important factor for the formation of new species?

Answer»

Geographical isolation of population
VARIATIONS
GENETIC DRIFT
All of the given

Answer :A::C
6.

Question : Which is the fundamental reaction in nuclear weapon for destructive purposes ?

Answer»

FUSION CHAIN
Fission chain
RADIATION chain
Thermal chain

Answer :A::C
7.

Question : Which is the function of gene?a.To form the structure of DNA.b.To form the structure of chromosome.c.To bring about the synthesize of protein.d.To synthesize DNA.

Answer»

To FORM the STRUCTURE of DNA.
To form the structure of chromosome.
To bring about the SYNTHESIZE of PROTEIN.
To synthesize DNA.

Answer :A::B
8.

Question : Which is the first part of the small intestine in humans?

Answer»

duodenum
jejunum
ileum
caecum 

ANSWER :A
9.

Question : Which is the first enzyme to mix with food in the digestive system?

Answer»

SOLUTION :SALIVARY AMYLASE
10.

Question : Which is the first enzyme to mix with food in digestive tract ?

Answer»

Pepsin
Cellulose
Amylase
Trypsin

Answer :C
11.

Question : Which is the correct statement regarding food chain ?a.All consumers are not producers.b.More energy is available at lower trophic levels.c.One organism may be involved in more than one food chain.d.All of the given

Answer»

All consumers are not producers.
More ENERGY is available at LOWER trophic levels.
ONE ORGANISM may be INVOLVED in more than one food chain.
All of the given

Solution :All of the given
12.

Question :Which is the desirable blood cholesterol level for Indians?

Answer»

SOLUTION :200 mg/dl.
13.

Question : Which is the correct sequence of parts/organs through which air passes during inhalation ?

Answer»

NOSTRIL `to` Pharynx `to` Larynx `to` TRACHEA `to` Alveoli
Larynx `to`Nostril`to` Pharynx'to' Lungs
Trachea passage`to`NASAL`to` Pharynx `to`Larynx `to`Alveoli
Nostril `to` Larynx `to` Pharynx `to`Trachea `to` Lungs

Solution :Nostril OPENS intopharynx, into larynx and larynx into trachea and finally air passes to alveolar sacs of lungs.
14.

Question : Which is the correct sequence in the food chain in grasslands?

Answer»

GRASS `RARR` wolf `rarr` deer `rarr` buffalo
grass `rarr` insect `rarr` bird `rarr` snake
grass `rarr` snake `rarr` insect `rarr` deer
bacteria `rarr` grass `rarr` RABBIT `rarr` wolf

Answer :B
15.

Question : Which is the class of phylum Chordata to which, bat belongs?

Answer»

Mammalia
Chiroptera
Prototheria
Aves 

ANSWER :A
16.

Question : Which is the characteristic feature of a physiologically dry soil?

Answer»

There is plenty of water in the SOIL
LIGHT AVAILABLE to the plants is not suficient
Concentration of salts is very HIGH in soil water
none of the above

ANSWER :C
17.

Question : Which is the befitting statement for the acquired characteristic ?a.It comes into existence due to changes in DNA.b.It is transmitted in the offspring through the parental gametes.c.The organisms are born with these characteristics.d.It develops as a response to the environment.

Answer»

It comes into EXISTENCE due to changes in DNA.
It is transmitted in the offspring through the PARENTAL GAMETES.
The organisms are born with these characteristics.
It DEVELOPS as a RESPONSE to the environment.

Answer :A::D
18.

Question : Which is the basis of classification of kingdom fungi

Answer»

MORPHOLOGY of MYCELIUM to class
Mode of SPORE formation
Fruiting bodies
All of the above

Answer :D
19.

Question : Which is present in the kidney ?

Answer»

glomerulus
ciliated nephron
middle kidneyduct
nephridia

Answer :A
20.

Question : Which is possible food chain in pond?

Answer»

SOLUTION :ALGAE, LARVA of MOSQUITO, FISH
21.

Question : Which is NOT true of a synapse?

Answer»

NEUROTRANSMITTERS affect postsynaptic neurons
many neurons MAY be INVOLVED
a synaptic CLEFT separates the neurons of the synapsel
neurotransmitters are released from dendrites

Answer :D
22.

Question : Which is not the function of kidney ?

Answer»

Sythesisof UREA
Excretiion of urea
Reabsorption of water
Secretion

ANSWER :A
23.

Question : Which is not dangerous for life?

Answer»

NUCLEAR blast
Deforestation
Biopollutants
OZONE LAYER

ANSWER :D
24.

Question : Which is not an example of vegetative propagule in angiosperms?

Answer»

ZOOSPORES of Chlamydomonas
Eyes of potato
Rhizome of Ginger
Bulbil of Agave.

Answer :A
25.

Question : Which is not a part of script editor ?

Answer»

SPRITE
SCRIPT AREA
BLOCK menu
Blockpalette

SOLUTION :sprite
26.

Question : Which is NOT a green house effect gas?

Answer»

`CO_(2)`
`H_(2)`
CEC
Methane

ANSWER :B
27.

Question : Which is incorrect with respect to mosquitoes ?

Answer»

Different stages of development in mosquito are distinguishable
ADULT mosquitoes feed on ALGAE
Mosquitoes SPREAD diseases suc as MALARIA and denque
Mosquitoes have respiratory trumpets

Answer :B
28.

Question : Which is formed during anaerobic respiration

Answer»

CARBOHYDRATE
ETHYL alcohol
ACETYL CoA
Pyruvate

Solution :Ethyl alcohol
29.

Question : Which is denatued spirit ?

Answer»

ETHANOL only
ethanol and METHANOL (50%)
ethanol and methanol (5%)
methanol only

ANSWER :A::D
30.

Question : Which is correct sequence of male accessory ducts starting from testis?

Answer»

Rete TESTIS, vasa efferentia, EPIDIDYMIS, VAS DEFERENS
Rete testis, vasa efferentia, vas deferens, epididymis
Rete testis, vas deferens, epididymis, vasa efferentia
Rete testis, vas deferens, vasa efferentia, epididymis

Answer :A
31.

Question : Which is correct about earthworm?

Answer»

It has brain but no head.
It SECRETS cocoon around UNFERTILISED egg.
It has no locomotory organs.
It can crawl on smooth SURFACE EASILY

Answer :A
32.

Question : Which is correct about autosomes ?

Answer»

They contain gense for SEXUAL characters.
They contain GENES for both sexual and vegetative characters.
They contain genes for vegatative charactes.
none of the above

ANSWER :C
33.

Question : Which is correct ?

Answer»

Eggs of all TYPES on mosquitoes are of the same SHAPE
Larvae of all types of mosquitoes reproduce in water
Larvae of mosquitoes NEVER cast off skin
Larvae are VORACIOUS EATERS

Answer :D
34.

Question : which is/are incorrect ?

Answer»

RIGHT ventricle has the thickest wall.
LEFT ventricle has the thickest wall.
Valves are located in the left side.
Pacemaker lies in the right side of the HEART

Answer :a,c
35.

Question : Which is a primary consumer?

Answer»

SCAVENGER
SAPROPHYTE
CARNIVORE
HERBIVORE

ANSWER :D
36.

Question : Which is a necessity of cellular reproduction ?

Answer»

Changes in niche
CONTINUITY of life
Copying of DNA
TRANSPORTATION of hereditary characters

Answer :A::C::D
37.

Question : Which is a main constituent of biogas ? What is its content ?

Answer»

SOLUTION :METHANE GAS is a main constituent of BIOGAS and it is about `75%`.
38.

Question : Which is a fungicide?

Answer»

2,4-D
DDT
BHC 
BORDEAUX mixture

Answer :D
39.

Question : Which is a false statement for variation ?a.All the variations in a species provide equal opportunity for survival.b.Very few variations are generated in asexual reproduction.c.Variations selected by the environmental factors cause the occurrence of evolution.d.The change in the genetic material (DNA) results in variation.

Answer»

All the VARIATIONS in a SPECIES provide equal opportunity for survival.
Very few variations are generated in asexual reproduction.
Variations selected by the ENVIRONMENTAL FACTORS cause the occurrence of EVOLUTION.
The change in the genetic material (DNA) results in variation.

Answer :A::B::C::D
40.

Question : Which is a connecting link on the basis of anatomy?

Answer»

ARCHAEOPTERYX between REPTILES and MAM mals
Duck-billed platypus between reptiles and MAMMALS 
LUNG fish between amphibians and birds
Seymouria between reptiles and birds 

Answer :B
41.

Question : Which is a characteristic of ferns?

Answer»

LEAFY gametophyte
Circinate vernation
Mycorrhizal roots
Coralloid roots

Answer :B
42.

Question : Which ion holds ribosomal units together ?

Answer»

`Ca^(2+)`
`MN^(2+)`
`MG^(2+)`
`NA^(+)`

SOLUTION :N/A
43.

Question : Which information have been obtained from the study of human evolution ?

Answer»

Solution :In HUMAN beings, there is a great diversity in forms and features across the planet.
`rarr` For a long-time, we used to consider these human forms as human races.
`rarr` Our belief was based on skin colour i.e., yellow, black, white or brown, etc. Over recent years, the evidence has become very clear. There is no biological basis to the notion of human races. All humans are a single SPECIES.
The earliest members of the human species, Homo sapiens can be traced from Africa. Our GENETIC FOOTPRINTS can be traced back to African roots.

A couple of hundreds and thousands of years ago some of the ancestors of the mankind strayed in Africa and some of our ancestors left Africa and gradually spread to Western Asia, Central Asia, Southern Asia and Eurasia. Some of the migrants from Africa reached Indonesian islands and from Phillipines to Australia and they crossed the Bering land bridge to the America. They did not go in a single line, so they were not travelling for the sake of travelling. They went forwards and backwards, with groups SOMETIMES separating from each other, sometimes coming back to mix with each other, even moving in and out of Africa.
Thus, like other species of living organisms, the human beings have also been the accidental product of evolution.
44.

Question : (i) Which hormone requires iodine for its formation ? What will happen if intake of iodine in our diet is low ? (ii) What is the importance of raivater harvesting ? (iii) What is colosturm ? How is milk production hormonally regulated ?

Answer»

SOLUTION :The HORMONES secreted by the thyroid GLAND are:
(a) Triiodothyronine `(T_3)`
(b) Tetraiodothyronine or THYROXIN `(T_4)` , which need an amino ACID tyrosine and lodine for its formation. If the intake of lodine in our diet is low or due to the inadequate supply of iodine in our diet leads to the enlargement of thyroid gland, which protrudes, as swelling in the neck and iscalled as goitre.
45.

Question :Which hormone promotes the production of male flowers in Cucurbits?

Answer»

Solution :Gibberellins PROMOTES the production of male FLOWERS in CUCURBITS.
46.

Question : Which hormone is seereted during emergency situation in man?

Answer»

SOLUTION :The hormones of ADRENAL MEDULLA,
(a) Epinephrine (Adrenaline)
(B) NOREPINEPHRINE (Noradrenaline) are secreted during emergency situation in man.
47.

Question : Which hormone is liberated by Nodule forming bacteria

Answer»

Auxin
Giberellin
Ethylene
Cytokinin

Answer :D
48.

Question : Which hormone induces parthenocarpy in tomatoes?

Answer»

SOLUTION :Gibberellins are efficient in the FORMATION of. seedless firuit, inducing parthenocarpy in TOMATOES
49.

Question : Which group of plants is regarded as first terrestrial plants? Why ?

Answer»

SOLUTION :Pteriodphytes. As they POSSESS vascular TISSUES- xylem and phloem.
50.

Question :Which group of organisms are not constituents of a food chain ? (i) Grass, lion, rabbit, wolf (ii) Plankton, man, fish, grasshopper (iii) Wolf, grass, snake, tiger (iv) Frog, snake, eagle, grass, grasshopper

Answer»

(i) and (iii)
(iii) and (iv)
(II) and (iii)
(i) and (iv)

SOLUTION : (i) and (iii) do not CONTAIN CONSTITUENTS of a food CHAIN.