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9451.

Question : The unit membrane concept was given by

Answer»

DANIELLI Davson
Robertson
Singer
Nicolson

ANSWER :B
9452.

Question : The unit membrane present around the vacuole is called

Answer»

Tonoplasm
Tonoplast
Tonolymph
(2) & (3)

ANSWER :B
9453.

Question :The union of both the subunits of a ribosome requires aMg^(+ +) concentration of:

Answer»

0.001 M
0.0001 M
0.01 M
0.1 M

ANSWER :C
9454.

Question : The unidirectional flow of blood in veins is due to the presence of ..............that prevents back flow of blood.

Answer»

SOLUTION :SEMI LUNAR VALVES.
9455.

Question : The unequal divisions during oogenesis results in small cells called ________

Answer»
9456.

Question : The underside of the frond of a fern, small brown dots appear close to the margins what are they called and what do they consist of?

Answer»

Solution :They are CALLED sori. Each SORUS consists of SEVERAL sporangia.
9457.

Question : The under secretion of ADH leads to ……..

Answer»

SOLUTION :DIABETES INSIPIDUS
9458.

Question :The underground stem of this genus is a rhizome

Answer»

Allium
Gloriosa
SCILLA
LILLIUM

ANSWER :B
9459.

Question : The ultimateelectronacceptorof respiration in an aerobicorganisms is (A) Cytochrome (B) Oxygen (C) Hydrogen (D) Glucose

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CYTOCHROME
Oxygen
Hydrogen
Glucose

Answer :B
9460.

Question : The typical floral formula of Papilionaceae (Soybean) is

Answer»




ANSWER :C
9461.

Question : The typical Lubb-Dup sounds heard in the heart beat of a healthy person are due to

Answer»

CLOSING of the tricuspid and bicuspid valve
Blood flow through the aorta
Closing of the tricuspid and semilunar valves
Closing of the semilunar valves

Solution :FIRST sound is lubb a long and BOOMING sound (RELATED by the closure of tricuspid valve and second sound is 'dupp' a short and due to closure of SEMI lunar valves.
9462.

Question : The types of major tissues that are present in human heart are

Answer»

only ONE type
only two TYPES
only three types
all FOUR types 

ANSWER :D
9463.

Question : The type of WBC that has nucleus with irregular lobes secretes

Answer»

eosin
erythro poitetin
heparin & histamine
plasma 

ANSWER :C
9464.

Question : The type of vision in Cockroach is

Answer»

THREE dimensional
Two dimensional
Mosaic
Cockroach do not have VISION

ANSWER :C
9465.

Question : The type of ribosomes is same in:

Answer»

CYTOPLASM of eukaryotic CELLS, their MITO chondria and chloroplasts.
cytoplasm of eukaryotic cells, their chloroplasts and microbodies.
Prokaryotes, mitochondria and chloroplasts.
Eukaryotic cytoplasm, mitochondria and ENDO plasmic reticulum.

Answer :C
9466.

Question : The type of ribosome found in prokaryotes is

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70S
80S
60S
50S

Answer :A
9467.

Question :The type of pollination that brings genetically different types of pollen grains to the stigma of a plant

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XENOGAMY
geitonogamy
chasmogamy
AUTOGAMY

ANSWER :A
9468.

Question :The type of pollination involving transfer of pollen grains from anther to the stigma of the same flower is known as

Answer»

GEITONOGAMY
xenogamy
autogamy
APOGAMY

ANSWER :C
9469.

Question : The type of nephridia which are extended upto the last segments are

Answer»

PHARYNGEAL, SEPTAL 
integumentary, pharyngeal 
both 1 & 2 
integumentary, septal 

Answer :D
9470.

Question : The type of placentation given here is

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AXILE
basal
marginal
parietal

Answer :D
9471.

Question : The type of muscle present in our

Answer»

HEART is involuntary and unstirated SMOOTH
intestine is striated and involuntary
thigh is striated and voluntary
UPPER arm is smooth MUSCLE and fusiform in

Solution :N//A
9472.

Question : The type of muscle fibre present in the wall of alimentary canal is

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Smooth MUSCLE fibre
striped muscle fibre
cardiac muscle fibre
both (a) and (b)

Solution :The TYPE of muscle fibre present in the WALL of alimentary canal is smooth muscle fibre. Smooth muscle fibres are non-striated and involuntary.
9473.

Question : The type of metamorphorsis occurs in cockroach is called

Answer»

Holometabolus 
Parametabolours 
Hemimetabolous 
NONE 

ANSWER :B
9474.

Question : The type of movement exhibits by the macrophages are

Answer»

flagellar
ciliary
muscular
AMOEBOID

Solution :amoeboid
9475.

Question : The type of meristem present in a vascular bundle is

Answer»

PRIMARY
Secondary
Intercalary
Apical

Answer :A
9476.

Question : The type of meristems occurring in grasses and regenerate parts removed by grazing herbivores

Answer»

INTERCALARY MERISTEMS
LATERAL meristems
SECONDARY meristems
CORK cambium

Answer :A
9477.

Question : The type of meristem absent in most of the monocot plants

Answer»

APICAL MERISTEMS
Intercalary meristems
Lateral meristems
Both 1 and 2

Answer :C
9478.

Question : The type of joint present between the humerus bone and the pectoral girdle is

Answer»

PIVOT joint
ellipsoid joint
gliding joint
ball and SOCKET joint

Answer :D
9479.

Question : The type of joint between the human skull bones is called

Answer»

CARTILAGINOUS joint
hinge joint
FIBROUS joint
synovial joint

Solution :Fibrous joint is PRESENT between the human skull BONES. It does not allow movement as the bones are FIRMLY help together by bundles of strong white collagen fibers.
9480.

Question : The type of inflorescence which is not racemose but resembles a single flower is called :

Answer»

CAPITULUM
cyathium
VERTICILLASTER
MULTIPAROUS cyme

SOLUTION :cyathium
9481.

Question : The type of inflorescence seen in Caesalpinia is ………………

Answer»

corymb
compound corymb
CAPITULUM
umbel

Solution :capitulum
9482.

Question : The type of image and vision in housefly is

Answer»

SUPERPOSITION and mosaic 
APPOSITION and blurred 
apposition and mosaic 
all the above 

Answer :C
9483.

Question : The type of image and function of ocellus is

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mosaic, sensitivey to light insensity CHANGES 
superposition, insensible to light intensity 
no IMAGE and sensitive to light intensity
none of the above 

Answer :C
9484.

Question : The type of flower cannot be divided into two similar halves in any vertical plane through centre is

Answer»

ACTINOMORPHIC
zygomorphic
assymmetric
both B & C

Answer :C
9485.

Question : The type of fruit in Ricinus in ..........

Answer»

lomentum
cremocarp
REGMA
nut

Solution :regma
9486.

Question : The type of epithelial cells which line the inner surface of fallopian tubes, bronchioles and small bronchi are known as:

Answer»

SQUAMOUS EPITHELIUM
columnar epithelim
ciliated epithelium
CUBOIDAL epithelium

ANSWER :C
9487.

Question : The type of tissue lining the nasal passage, bronchioles and fallopian tubes is

Answer»

SQUAMOUS epithelium
columnar epithelium
ciliated epithelium
cubical epithelium

Answer :C
9488.

Question : The type of diffusion in which substances move across the membrane along their concentration gradient in the presence of certain carriers or transport proteins is called as

Answer»

simple diffusion
facilitated diffusion
osmosis
active TRANSPORT.

Solution :The diffusion of hydrophilic substances along the concentration gradient through fixed membrane transport proteins without involving energy expenditure, is called facilitated diffusion. Facilitated diffusion is very Specific as it allows cell to select substances for uptake. It is sensitive to inhibitors as well as SHOW saturation effect. TWO major types of transport proteins are KNOWN viz, carrier proteins CARRIERS, transporters) and channel proteins. Carrier proteins bind the particular solute to be transported and deliver the same to the other side of the membrane.
9489.

Question : The type of cell junction, which facilitates cell to cell communication is

Answer»

TIGHT junction
adhering junction
gap junction
desmosomes

Answer :C
9490.

Question : The type of calyx in brinjal is……………….

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caducous
deciduous
PERSISTENT
fugacious

Solution :persistent
9491.

Question : The type of arrangement of xylem and phloem on alternate radii is described as

Answer»

RADIAL
Diagonal
Pyramidal
Tangential

Answer :A
9492.

Question : The two types of cellular organelles that transform energyare :

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CHROMOPLASTS and LEUCOPLASTS
MITOCHONDRIA and CHLOROPLASTS
mitochondria and leucoplasts
mitochondria and ribosomes

Solution :mitochondria and chloroplasts
9493.

Question : The two subunits of ribosomes remain united at critical ion level of ____

Answer»

MAGNESIUM
Calsium
Sodium
Ferrous

Solution :Magnesium
9494.

Question : The two subunits of ribosmoes remain united at critical ion level of

Answer»

MAGNESIUM
Calcium
Sodium
Ferrous

Solution :Magnesium
9495.

Question : The two subunits of remain united at critical ion level of

Answer»

MAGNESIUM
Calcium
Sodium
FERROUS

ANSWER :A
9496.

Question : The two subunits of ribosome remain united at a critical ion level of

Answer»

Copper
Manganese
MAGNESIUM
CALCIUM

ANSWER :C
9497.

Question : The two subunits of ribosomes get associated in the presence of the following ion

Answer»

`MG^(+2)`
`Ca^(+2)`
`FE^(+2)`
`Fe^(+3)`

ANSWER :A
9498.

Question : The two polypeptides of human insulin are linked together by

Answer»

COVALENT BOND
DISULPHIDE bridges
hydrogen bonds
phosphodiester bond

Answer :B
9499.

Question : The two pairs of wings of cockroach arise one pair each from:

Answer»

PROTHORAX and mesothorax
mesothorax and METATHORAX
prothorax and metathorax
FIRST two SEGMENTS of abdomen

Solution :mesothorax and metathorax
9500.

Question : The two polynucleotide chains in DNA are

Answer»

PARALLEL
DISCONTINUOUS
Antiparallel
Semiconservative

Answer :C