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.

2951.

Question : Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant? How is the constancy maintained in these three stages?

Answer»

Solution :YES, the CONSTANCY is MAINTAINED because cells in all these three structures UNDERGO only mitotic DIVISIONS.
2952.

Question : Is sopreformation the common method of sexual reprodcution of Rhizompus ?

Answer»


ANSWER :No
2953.

Question : …….......is responsible for the movement of water upto the base of the stem.

Answer»

SOLUTION :ROOT PRESSURE
2954.

Question : Is regeneration a type of reproduction ? Explain with example.

Answer»

Solution :In certain fully differentiated organisms new individuals can be formed from their body parts. This is CALLED regeneration.
If the parent body is broken up into many pieces, some of these pieces GROW into separate individuals.
e.g, simple animals like hydra, planaria, starfish, etc. can be cut into one or many pieces and each piece grows into complete organism. i.e., it shows regeneration.
Regeneration is carried out by specialised cells. These cells undergo repeated cell division and form large numbers of cells. From this cell- mass, different cells undergo changes to become various cell types and tissues. These changes lead to development in an organised SEQUENCE.

How, regeneration is not the same as reproduction, since most organisms would not normally dependon being cut up to be able to reproduce.
2955.

Question : Is ‘nutrition’ a necessity for an organism? Discuss.

Answer»

Solution :Food is required for the following PURPOSES:
(i) It provides energy for the various metabolic processes in the body.
(ii) It is essential for the growth of new CELLS and repair or replacement of worn out cells.
(III) It is needed to develop resistance against various DISEASES
2956.

Question : Is geothermal energy and nuclear energy different in this respect ? Why ?

Answer»

Solution :Yes, geothermal energy is OBTAINED from steam generated in regions of hot spots due to GEOLOGICAL CHANGES. NUCLEAR energy is obtained by a process called nuclear fission and nuclear fusion of radioactive SUBSTANCES.
2957.

Question : Is cell division a type of reproduction in unicellular organisms? Justify.

Answer»

Solution :UNICELLULAR organisms are the simple organisms. In unicellular organisms all the important functions are carried out by the single cell because they lack all CELLULAR organelles. The two types of reproduction i.e sexual and ASEXUAL need the involvement of many organelles and biomolecules. Hence, these MODES of reproduction is absent in unicellular organisms. Therefore, cell division acts as the mode of reproduction and results in the production of daughter CELLS in them.
2958.

Question : ____________ is ATP factory of the cells.

Answer»

SOLUTION :MITOCHONDRIA
2959.

Question : ……..is a gaseous plant hormone, mainly concerned with maturation and ripening of fruits

Answer»

SOLUTION :ETHYLENE
2960.

Question : ………..is a gaseous hormone involved in abscission of organs and acceleration of fruitripening

Answer»

SOLUTION :ETHYLENE
2961.

Question : Iron in haemoglobin exists as

Answer»

UNIONISED IRON atom
ferric IONS only
ferrous ions only
ferric or ferrous ions depending UPON the OXYGENATED state 

Answer :C
2962.

Question : Iron fortified rice variety determines the protein quality to the cultivated plant.

Answer»

SOLUTION :Correct statement: Iron fortified RICE variety determines the iron quality of the CULTIVATED plant.
2963.

Question : IPCC,IUCN,BNHS,UNEP.

Answer»

SOLUTION :BNHS-others are INTERNATIONAL ORGANISATIONS
2964.

Question : IPCC: Geneva :: IUCN:………..

Answer»
2965.

Question : International Rice Research Institute is in

Answer»

PHILIPPINES 
U.S.A.
Japan
U.K. 

ANSWER :A
2966.

Question : International environment organization.

Answer»

Solution :INTERNATIONAL Union for CONSERVATION of Nature (IUCN)
2967.

Question : Intermediate host of Schistosoma is

Answer»

man
pig
cow
snail 

ANSWER :D
2968.

Question : Intermediate host of Taenia saginata is

Answer»

pig
cow
dog
man 

ANSWER :B
2969.

Question : Intercellular connections in plant cells are called

Answer»

MIDDLE lamella
microfibrils
matrix
plasmodesmata

Answer :A
2970.

Question : Insulin resistance is a condition in ____________ diabetes mellitus.

Answer»

SOLUTION :TYPE - 2
2971.

Question : Insulin: Diabetes: Benzopyrene: ..............

Answer»

SOLUTION :LUNG CANCER
2972.

Question : Inspite of the high cost, solar cells are widely used.

Answer»

Solution :A special grade silicon is used for making solar cells and SILVER is used for interconnection of cells in panel.
`rarr` This makes the solar cells expensive.
`rarr` But it converts solar energy into electricity and about 0.7 W of electricity is produced when exposed to the Sunlight.
`rarr` Solar cells and panels are widely used in artificial satellite, space probes like Mars orbiters, wireless transmission systems, radio or TV relay stations, traffic signals, calculators and in many toys.
`rarr` At domestic level, maximum USE of solar energy can be ACHIEVED by USING solar roof top thus saving electricity.
So, solar cells are widely used.
2973.

Question : Instead of curd. if we use milk than which trophic level is occupied by us?

Answer»

SOLUTION :THIRD TROPHIC LEVEL/second level of CONSUMER
2974.

Question : Insect, Tree, Fowl, Man.

Answer»

SOLUTION :TREE `to`INSECT `to`FOWL `to`MAN
2975.

Question : Insect pollinated flowers usually possess

Answer»

sticky POLLENS with ROUGH surface
large QUANTITIES of pollens
brightly COLOURED pollens
dry pollens with smooth surface

Answer :A
2976.

Question : Insect pollinatedflowersarecharacterizedbydryand smoothpollen.

Answer»

Solution :Correct Statement: INSECT POLLINATED flowers are CHARACTERIZED by larger and SPINY pollen.
2977.

Question : Insect, Green plant, Frog, Eagle, Snake.

Answer»

Solution :Green Plant `to`INSET `to`FROG `to`Snake`to` Eagle
2978.

Question : Initiation of polypeptide chain in protein synthesis is induced by

Answer»

methionine
leucine
lysine
glycine

Answer :A
2979.

Question :Inheritance of total colour-blindness is

Answer»

X-linked
XY-linked
Y-linked
NONE of these

Answer :A
2980.

Question : Inheritance of acquired characters refers to

Answer»

INHERITANCE of adaptive and nonadaptive CHARACTERS
inheritance of somatic characters as well
inheritance of germinal variations
None of the above

ANSWER :B
2981.

Question : Infective stage of plasmodium that infects human beings is

Answer»

schizont
sporozoite
trophozoite
cryptozoite

Answer :C
2982.

Question : Individuals should seek help from psychologists and psychiatrists to get relief from alcohol abuse.

Answer»


ANSWER :TRUE
2983.

Question : Indicate a non-poisonous animal from the fol lowing

Answer»

naja
varanus
bungarus
viper 

ANSWER :B
2984.

Question : Indicate correct statement for man?

Answer»

ARTERIES always carry oxygenated blood while veins always carry deoxygenated blood
arteries are provided with valves while veins are devoid of valves
arteries always carry blood away from the HEART, while veins always carry blood towards the heart
venous blood is RETURNED to left auricle 

Answer :C
2985.

Question : Indian telegraph plant commonly known as

Answer»

DESMODIUM gyrans
CROTOLARIA JUNCEA
Butea monosperma
MALVA indica

Answer :A
2986.

Question : Indian-American scientist associated with First Artificial gene is,

Answer»

<P>HARGOBIND KHORANA
P. MAHESHWARI
S. C. Maheshwari
D. Konar

Answer :A
2987.

Question : India is ranked …………………… in harnessing wind energy for the production of electricity.

Answer»


ANSWER :FIFTH
2988.

Question :Increase in the percentage of fauna and de-crease in flora may be dangerous because it enhances

Answer»

percentage of `CO_(2)`
percentage of radioactive fallout
percentage of DISEASES
percentage of `O_(2)`

ANSWER :A
2989.

Question : Increase in amount of ......... leads to green house effects ultimately leading to global warming

Answer»

SOLUTION :`CO_2`
2990.

Question : Inactive enzyme precursors, such as pepsinogen for pepsin, are called

Answer»

holoenzymes
actinases
zymogens
mucopolysaccharides 

ANSWER :C
2991.

Question : In Whittaker's classification, non-nucleated unicellular organisms/prokaryotes are include under

Answer»

Plantae
Monera
Protista
Animalia 

ANSWER :B
2992.

Question : In Whittaker's classification, cukaryotes are assigned

Answer»

TWO of FIVE KINGDOMS
three of five kingdoms 
four of five kingdoms
all the five kingdoms 

Answer :C
2993.

Question : In which vertebrate group (s), heart does not pump oxygenated bloodto variousparts of body ?

Answer»

Pisces
Pisces and amphibinas
Amphibians
Amphibians and reptiles

Solution :Fishes have two chambered heart. It only PUMPS de-OXYGENATED BLOOD to gills for OXYGENATION . Oxygenated blood goes DIRECTLY to body organs from gills .
2994.

Question : In which veneral disease the helper T-cells are attacked,

Answer»

GENITAL warts
AIDS
Gororonoea
Hepatitis B

Answer :B
2995.

Question : In which unit is amount of atmospheric ozone expressed?

Answer»

SOLUTION :DOBSON UNIT (DU)
2996.

Question : In which type of reproduction there is seed formation ?a.Vegetative propagationb.Asexual reproductionc.Sexual reproductiond.Budding

Answer»

VEGETATIVE PROPAGATION
ASEXUAL REPRODUCTION
Sexual reproduction
Budding

Answer :A::C::D
2997.

Question : In which type of medium pepsin and gastric lipase work ?

Answer»

Solution :PEPSIN and GASTRIC lipase work BEST in acidic MEDIUM .
2998.

Question : In which state and for what such system is adapted ?

Answer»

SOLUTION :In Rajasthan STATE and to harvest the water such SYSTEM is ADAPTED.
2999.

Question : In which region of kidney Malpighian corpuscles are found?

Answer»

SOLUTION :In the OUTER (CORTEX) PART of KIDNEY.
3000.

Question : In which region is 75% of water content of the nephric filtrate reabsorbed ?

Answer»

SOLUTION :PROXIMAL CONVOLUTED TUBULE.