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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.

10301.

Question : The mating between difference species produces sterile offsprings.

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SOLUTION :The maternal and paternal chromosomes of the offsprings produced by the mating between different SPECIES are not IDENTICAL and hence GAMETES are not produced by MEIOTIC division.
10302.

Question : The material generally used for sound proofing of rooms like a recording studio and auditorium,etc. is

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COTTON
Coir
Wood
Styro foam

Answer :D
10303.

Question : The mature cells of bone are mostly involved in

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CELL DIVISION 
extra cellular matrix FORMATION 
REGENERATION 
maintaining the matrix 

ANSWER :D
10304.

Question : The mass of eggs and sperm released by female and male during amplexus are called respectively

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SPAWN and MILT 
SPERMATOPHORES and spawn 
spawn and spermatophores 
milt and spawn

Answer :A
10305.

Question : The mass emergence of larvae from the eggs of lac in search of a host plant is called .............

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SOLUTION :SWARMING
10306.

Question : The manufactured food in a green plant moves from the leaves ot other parts through

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xylem
PHLOEM
cortex
pith

Solution :The sugars synthesized in leaves (as a result of photosyntesis) are TRANSLOCATED downwards, upwards and LATERALLY to STORAGE organs mainly through phloem. These sugars are translocated in the form of sucrose.
10307.

Question : The manner in which values of BOD and COD change, as water pollution increases in a stream

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BOD and COD both INCREASES
BOD DECREASES COD increases
both decreases
cannot be presumed

ANSWER :A
10308.

Question : The malnutrition disease in man is

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CRI DU CHAT syndrome
Klinefelter's syndrome
Potbelly syndrome
Edward's syndrome

Answer :C
10309.

Question : The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gameter, zygote and the cells of the seedling will be, respectively

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12,24,12
24,12,12
12,24,24
24,12,24

Answer :C
10310.

Question : The male gametophyte in higher plants is represented by

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MICROSPORE
anther
pollen GRAIN
MALE GAMETE

10311.

Question :The male gamete is x and egg is 3x. The ploidy level in embryo and endosperm will be

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4x in EMBRYO and 4x in endosperm
4x in embryo and 7x in endosperm
4x in embryo and 6X in endosperm
6x in embryo and 12X in endosperm

Answer :B
10312.

Question : The male gamete of Lycopodium and Selaginella is

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NON - ciliated
Biflagellated
MULTIFLAGELLATED
Quadriflagellated

Answer :B
10313.

Question : The male and female sex organs of bryophytes are called .......... and ...... respectively.

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SOLUTION :ANTHERIDIUM , ARCHEGONIUM
10314.

Question : The male cockroach can be identified by the presence of :

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COLLATERAL GLANDS
GREEN glands
Broad abdomen
Anal styles

Answer :D
10315.

Question : The male and female reproductive organs of several pteridophytes and gymnosperms are comparable to floral structures of angiosperms. Make an attempt to compare the various reproductive parts of pteridophytes and gymnosperms with reproductive structures of angiosperms.

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SOLUTION :STRUCTURES are GIVEN here
10316.

Question : The majority of carbon dioxide produced by our body cells in transported to the lungs

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DISSOLVED in blood
as bicarbonates
as carbonates
attached to HAEMOGLOBIN

10317.

Question : The major structural component of cell membrane is _____

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glucolipids
PHOSPHOLIPIDS
proteolipids
triglycerides

Solution :Phospholipids
10318.

Question : differentiate between the following. Red algae & Brown algae

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CHLOROPHYLL a
fucoxanthin
floridean starch
phycoerythrin

Answer :(B)
10319.

Question : The major parts of the human neural system is depicted below. Fill in the empty boxes with appropriate words.

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SOLUTION :
10320.

Question : Themajorparts of the humanneural systemis depicted below. Fill in theempty boxes withappropriate words.

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SOLUTION :THEMAJORPARTS of THEHUMAN nerural suystemis filled in the BOXES with appopriate WORDS.
10321.

Question : The major part of cell wall of monerans (Bacteria and Cyanobacteria) is made up of a polymer called

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PEPTIDOGLYCAN
Mucopeptide
Glycopeptide or murein
All the above

ANSWER :D
10322.

Question : The major insect body parts are :

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head, cephalothorax, and ABDOMEN
cephalothorax, MIDSECTION, and abdomen
head, thorax, and abdomen
head, PROTHORAX, and metathorax

Solution :head, thorax, and abdomen
10323.

Question : The major functions of the plasma membrane do notinclude:

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separation of the fluid environments INSIDE and outsidethe cell
regulation of molecules and IONS that pass into ANDOUT of the cell
recognition and communication between different cellsand tissues
production of proteins used in construction of the cellwall

SOLUTION :production of proteins used in construction of the cellwall
10324.

Question : The major function of Henle's loop is to concentrate__________

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NA+ and CL-
K+ IONS
Na+ and K+ ions,
Na and Cations

Answer :A
10325.

Question : The maintenance of constant temperature inside the body is an example of

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Homeostasis
Negative FEEDBACK loop
Both (a) and (B)
NONE of these

Answer :A
10326.

Question : The maintenance of constant internal environment is refrred as

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REGULATION
HOMEOSTASIS
co-ordination
HORMONAL control

Solution :homeostasis
10327.

Question : Select the correct biological term.Cardiac muscle, atria, tricuspid valve, systole, auricles, arteries, diastole, ventricles, bicuspid valve, pulmonary artery, cardiac cycle, semi lunar valve, veins, pulmonary vein, capillaries, vena cava, aortaThe main vein

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SOLUTION :VENA CAVA.
10328.

Question : The main reserve food material of class Chlorophyceae is :

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FAT
STARCH
GLYCOGEN
volutin

SOLUTION :starch
10329.

Question : The main role of vascular rays is

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Lateral conduction of ergastic materials
UPWARD conduction of WATER and salts
DOWNWARD conduction of food materials
Radial MOVEMENT of water and food

Answer :D
10330.

Question : The main plant body of bryophyte is diploid.

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ANSWER :FALSE
10331.

Question : The main organelle involved in modification and routing of newly synthesized proteins to their destinations is

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Chloroplast
Mitochondria
Lysosome
Endoplasmic reticulum

Answer :D
10332.

Question : The main organelle involved in modification and routing of newly synthesised protein to their destinations is

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Mitochondria
Glyoxysomes
Spherosomes
Endoplasmic reticulum

Answer :D
10333.

Question : The main mineralocorticoid in human is

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aldosterone
cortisol
testosterone
adrenaline

Answer :A
10334.

Question : The main function of the pyrenoid is :

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CHLOROPHYLL PRODUCTION
synthesis of carbohydrate
eliminating excess water
to be a PHOTORECEPTOR to detect LIGHT

Solution :synthesis of carbohydrate
10335.

Question : The main function of the contractile vacuole is :

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synthesis of carbohydrate
eliminating EXCESS water
to be a photoreceptor to detect light
resistance for SURVIVAL during WINTER and TIMES of drought

Solution : to be a photoreceptor to detect light
10336.

Question : The main function of the following is to store food

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PARENCHYMA
collenchyma
sclerenchyma
cork

Answer :A
10337.

Question : The main function of plasma membrane is to

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Store CELL material
CONTROL all CELLULAR activities
Maintain cell SHAPE and SIZE
Regulatdhe inflow and outflow of material through the cell wall

Answer :D
10338.

Question : The main function of lysosomes is

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Only INTRACELLULAR digestion
Only extracellular digestion
Both intracellular and extracellular DIGESTIONS
None

ANSWER :C
10339.

Question : The main function of lysosome is

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Sexual reproduction
EXTRACELLULAR DIGESTION
Intracellular digestion
Both (2) and (3)

Answer :D
10340.

Question : The main function of erythrocytes is to .....for which they contain a special protein , called …..

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SOLUTION :TRANSPORT OXYGEN , HAEMOGLOBIN
10341.

Question : The main function of cell membrane is to :

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PROVIDE support
maintain the cell SHAPE and size
regulate the FLOW of materials into and outside the cell
all of the above

Answer :D
10342.

Question : The main function of the cuboidal epithelium is

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Protection
Secretion
Absorption
Both (B) and (C)

ANSWER :D
10343.

Question : The main function of a stratified squamous epithelium is ………………

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SOLUTION :PROTECTION
10344.

Question : The main elements of conduction of water and mineral salts in Pteridophytes pue Gymnosperms are

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TRACHEAE
SIEVE CELL
TRACHEIDS
Sieve tube

Answer :C
10345.

Question : The main difference between white and yellow fibres is of

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protein
COLOUR of FIBRES
both (1) and (2)
NONE of these

Answer :C
10346.

Question : The magnitude by which water potential is reduced due to the presence of solue in pure water is known as solute potential/pressure potential.

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SOLUTION :SOLUTE POTENTIAL
10347.

Question : The macrophages of the central nervous system are the...........

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SOLUTION :MICROGLIA
10348.

Question : The macrophages in the sinusoids of the liver are called .........

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Microglia
KUPFFER cells
ALVEOLAR macrophages
LYMPHOCYTES

SOLUTION :Kupffer cells
10349.

Question : The macronutrients which is an essential component of all organic compounds, yet not obtained by plants from soil is

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nitrogen
carbon
phosphorus
magnesium

Answer :B
10350.

Question : The lymph nodesI) are small solid structure throughout the bodyII) filter lymph fluid as it flows through them, trapping bacteria, viruses and other antigens, which are then destroyed by lymphocytes. Which of the statements given above is/are correct?

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Only I
Only II
I and II
None of these

Answer :C