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13601.

Question : Of the following types of animals, all are segmentedexcept:

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ARTHROPODS
ANNELIDS
ECHINODERMS
CHORDATES

SOLUTION :echinoderms
Discussion
13602.

Question : Of the following groups of organisms, which is the most evolutionarily advanced, with more complex body structure ?

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ROUNDWORMS
CNIDARIA
SPONGES
FLATWORMS

SOLUTION :Roundworms
Discussion
13603.

Question : Of the following, the most recent ancestors of vascular plants were probably :

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MOSSES
RED ALGAE
horsetails
GREEN algae

Solution :green algae
Discussion
13604.

Question : Of the following animals, which are triploblastic ?(A) Sponges(B) Renophore(C) Coelenterata(D) Flatworms

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Sponges
Renophore
Coelenterata
FLATWORMS

Solution :Flatworms
Discussion
13605.

Question : ………of Bundle sheath helphs in identifying C_(4) plants.

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ANSWER :PRESENCE
Discussion
13606.

Question : Of all land plants, bryophytes alone have independent….... and attached, dependent ……...

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SPOROPHYTES, GAMETOPHYTES
RHIZOIDS, zygotes
gametophytes, sporophytes
rhizoids, STALKED sporangia

Solution :gametophytes, sporophytes
Discussion
13607.

Question : Odd sepal is anterior in Papilionaceae.

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SOLUTION :ODD sepal ALWAYS lie AWAY from mother AXIS.
Discussion
13608.

Question :Odd sepal is anterior in

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Pisum sativum, SOLANUM nigrum, ALLUM CEPA, Capsicum fruitescens
Allium cepa, ALOE vera, Asparagusracemosus, Lilium candidum
Solanum nigrum, Pisum sativum, Gloriosa superba, YUCCA gloriosa
Pisum sativum, Butea monosperma, Crotalaria juncea, Derris indica

Answer :D
Discussion
13609.

Question : Octopus is(A) Squid(B) Devil fish(C) Locust(D) tusk shell

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Squid
Devil fish
Locust
tusk SHELL 

ANSWER :B
Discussion
13610.

Question : OCP are contraindicated in

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CARDIAC DISORDERS
HYPERTENSION
diabetes
all of these

ANSWER :D
Discussion
13611.

Question : Ocelli are present at the base of the

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MAXILLA 
ANTENNA 
MANDIBLE 
COMPOUND eye

Answer :B
Discussion
13612.

Question : Occluding junctions or zonula occuldens are

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Adhering JUNCTIONS 
GAP junctions 
Desmosomes 
TIGHT junctions

ANSWER :D
Discussion
13613.

Question : Observe the relationship between the first two words and then fill in the suitable words in thefourth place :

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BACTERIA : prokaryotes : : Man : ……….
Organs : organism : : Cells :Cell : plasma membrane : : Vacuole :PHOTOSYNTHESIS : energy : : DNA :

Solution :(a) Eukaryote , (B) TISSUES , (c) Tonoplast , (d) information.
Discussion
13614.

Question :Observe the relationship between the first two words andthen fill in the suitable word at the fourth place : nucleus : light microscope : : ER: ………..

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SOLUTION :ELECTRON MICROSCOPE
Discussion
13615.

Question :Observe the relationship between the first two words andthen fill in the suitable word at the fourth place : mitochondria : cristae : : chloroplast : ………

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SOLUTION :THYLAKOIDS
Discussion
13616.

Question :Observe the relationship between the first two words andthen fill in the suitable word at the fourth place : chloroplast : photosynthesis :: amyloplast : ……….

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SOLUTION :STORAGE
Discussion
13617.

Question : Observe the relationship between the first two words and then fill in the fourth place. moss : capsule :: fern : ......

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SOLUTION :SPORANGIUM
Discussion
13618.

Question : Observe the relationship between the first two words and then fill in the fourth place. fern : prothallus :: Moss : ……………

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SOLUTION :PROTONEMA
Discussion
13619.

Question : Observe the relationship between the first two words and then fill in the fourth place. angiosperms : roots :: rhodophyta :………….

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SOLUTION :RHIZOIDS
Discussion
13620.

Question : Observe the relationship between first two words and then fillthe suitable word/words at the fourth place.Osmotic pressure : Osmotic potential :: DPD : ......................

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SOLUTION :WATER POTENTIAL
Discussion
13621.

Question : Observe the relationship between first two words and then fillthe suitable word/words at the fourth place.Root hairs : Water absorption :: Vessels : .........................

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SOLUTION :ASCENT of SAP
Discussion
13622.

Question : Observe the relationship between first two words and then fillthe suitable word/words at the fourth place.Levitt : Malate hypothesis :: Steward : ......................

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SOLUTION :Starch-sugar HYPOTHESIS
Discussion
13623.

Question : Observe the relationship between first two words and then fillthe suitable word/words at the fourth place.Stomata : Transpiration :: Hydathode : ............................

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SOLUTION :GUTTATION
Discussion
13624.

Question : Observe the relationship between first two words and then fillthe suitable word/words at the fourth place.Leaves : Foliar transpiration :: Stem : ..................

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SOLUTION :LENTICULAR TRANSPIRATION
Discussion
13625.

Question : Observe the picture A and BIdentify the phylum of A and B

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SOLUTION :A-Coelenterata ,B-Annelida
Discussion
13626.

Question : Observe the histogram and answer the following question. (a) Which type of transpirationdoes 'A' and 'C' represent ? (b) Name 'B' and also define the plant part. Which is responsiblefor 'B' type of transpiration.

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Solution :(a) A-Stomatal TRANSPIRATION, C-Cuticular transpiration and B-Lenticulartranspiration.
Lenticles are the lend-shaped raised spots PRESENT on the SURFACE of the stem.
Discussion
13627.

Question : Observe the given figures and select the option that correctly identies the labers A,B,C and D.

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`{:(A,B,C,D),("PARATHYROID GLAND","ISTHMUS","TRACHEA","Thyroid gland"):}`
`{:(A,B,C,D),("Thyroid gland","Isthmus","Trachea","Parathyroid gland"):}`
`{:(A,B,C,D),("Thyroid gland","Isthmus","Larynx","Parathyroid gland"):}`
`{:(A,B,C,D),("Thyroid gland","Corpus luteum","Trachea","Parathyroid gland"):}`

Answer :B
Discussion
13628.

Question : Observe the given floral diagram and choose the suitable floral formula from the followings

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ANSWER :C
Discussion
13629.

Question : Observe the given figure showing various types of placentration. Identify the type of placentation. Give one example of each.

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Solution :(a) MARGINAL PLACENTATION — Pea
(B) Parietal placentation — Mustard, Argemone <>br(c) FREE central plancentation — DIANTHUS, Primrose
Discussion
13630.

Question : Observe the given diagram given below and answer the questions. (a) Name the apparatus set up. (b) Mention the purpose of the apparatus.

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SOLUTION :(a) The apparatus set up is Kuhne's fermentation tube.
(b) Kuhne's fermentation tube is USED to DEMONSTRATE ALCOHOLIC fermentation.
Discussion
13631.

Question : Observe the following statement and correct it, if wrong, by changing the underlined words: Conduction of impulses also axon membrane takes place due to ul("repolarization") and ul("depolarization") waves.

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Solution :Conduction of impulses also axon membrane takes PLACE due to `UL("DEPOLARIZATION") and ul("repolarization")` WAVES.
Discussion
13632.

Question : Observe the following. Identify the correct statement.

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It is a SCRUBBER used to check`SO_(2)`pollution
It is an ELECTROSTATIC precipitator to check particulate matter
It is a catalytic converter used to check automobile EXHAUST
It is an incinerator to burn hospital waste

Answer :A
Discussion
13633.

Question : observe the following features of animals and answer the following question MoistHooks suckersPneumatic bonesDry and non glandular skinMetamerism Select the amphibious adaptation of frog

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SOLUTION :MOIST SKIN
Discussion
13634.

Question : observe the following features of animals and answer the following question Moist skinHooks suckersPneumatic bonesDry and non glandular skinMetamerism Select the flight adaptation of birds.

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SOLUTION :PNEUMATIC BONES
Discussion
13635.

Question : Observe the following device. It is used to control

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`SO_(2)` pollution
Nox pollution
particulate MATTER pollution
CO pollution

Answer :C
Discussion
13636.

Question : Observe the flowchart and answer the questions given below: What will happen if the S.A. node is not working properly?

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SOLUTION :CARDIAC FAILURE
Discussion
13637.

Question : Observe the first pair of words and write a suitable word for the second pair. Botanical garden : Living planta ................. : Living animals

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SOLUTION :ZOOLOGICAL park/Zoo : LIVING ANIMALS
Discussion
13638.

Question : Observe the figure What is the significance of Ca^(++) in muscle contraction?

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SOLUTION :`CA^(++)`ions ACTIVE ATP ASE enzyme
Discussion
13639.

Question : Observe the figure given below and select the correct statements . I) The power generation by the above method isnon-polluting II) It is a kind of non conventional renewable energy source III) It uses photovoltaic cell

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I & II only
I & III only
III only
All are correct

Answer :A
Discussion
13640.

Question : Observe the figure and answer the following questions: (i) Name parts a and b. (ii) Are these types of stomata observed in monocot or in dicot plants? (iii) Which parts shown in figure constitute the stomatal apparatus?

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Solution :(i) a, epidermal cell
b: GUARD cell
(II) In DICOT plants.
(iii) The stomatal apparatus includes the stomatal aperture, guard cells and the SURROUNDING SUBSIDIARY cells.
Discussion
13641.

Question : Observe the diagram, it is a plant cell undergoing plasmolysis. (a) Which stage of plasmolysis does the cell represents ? (b) Whether it isreversible ? (c) What happens if this occur in the leaf cells ?

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Solution :(a) EVIDENT plasmolysis.
(B) YES, evident plasmolysis is reversible.
(C) Under evident plasmolysis, wiltingof leavesappear.
Discussion
13642.

Question : Observe the diagram given below and answer the questions. (a) Mention the parts A,B,C (b) Name the part of the plant where we can see this structure more in number.

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Solution :(a) A - STOMA, B - GUARD cell and C - Subsidiary cell.
(b) STOMATA are seen more in NUMBER on the lower epidermis of leaves.
Discussion
13643.

Question :Observe the diagram and answer the following : (a) Which of these guard cells show a higher water content, A or B ? (b)Are these types of guard cells found in monocots or dicots ? (c) Name the element which play an important role in the opening and closing of stomata.

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SOLUTION :(a) A
(b)DICOTS
(C ) K+ (Potassium ions)
Discussion
13644.

Question : Observe the diagram and answer the following. (a) Which group of plants exibit these two type of cells ? (b) What is first product of C_(4) cycle ? (c ) Which enzyme is there in bundle sheath cells and mesophyll cells ?

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Solution :(a) The plants of Graminae or poaceae family like sugarcane and maize two types of CELLS are seen in them, cells of MESOPHYLL tissue and cells of bundle sheath.
(b) The first product of `C_(4)` cycle is 4C-oxalo - acetic acid.
(c ) PEPcase enzyme is present in bundle sheath cells which does FIXATION of `CO_(2)` of ATMOSPHERE and forms 4C oxalo acetic acid.
Which RuBisCO enzyme is found in cells of bundle sheath which fixes `CO_(2)` and forms 3C PGA. PGA = phosphoglyceric acid.
Discussion
13645.

Question : Observe the diagram and answer the following: (a) Which group of plants exhibits these two types of cells? (b) What is the first product of C_4 cycle? (c) Which enzyme is there in bundle sheath cells and mesophyll cells?

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SOLUTION :(a) `C_4` PLANTS.
(b) Oxaloacetic acid.
(c) BUNDLE sheath CELLS: Rubisco
Mesophyll cells: Phosphoenol pyruvate carboxylase.
Discussion
13646.

Question : Observe the diagram and answer the following . (a) Which group of plants exhibit these two type cells ? (b) What is the firstproduct of C_(4) cycle ? ( c) Which enzyme is there is bundle sheath cells and mesophyll cells ?

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Solution :(a) Monocoat plants belonging to Graminae/Poacea family, e.g., sugarcane, maize etc.Possess these two types of cells, ie.e., bundle sheath and mesophyll CELL ( in KRANZ anatomy).
(b) A 4- carbon compound oxaloacetic acid is the first product of `C_(4)` cycle.
( c) Mesophyll cells have PEP carboxylase to FIX ATMOSPHERIC ` CO_(2)` to form a -4- carbon compound oxail acetic acid, whereas bundle sheat cells have RuBP carboxylase which fix `CO_(2)` by this enzyme to form 3- carbon compound 3 PGA ( 3 phosphoglyceric acid. ).
Discussion
13647.

Question : Observe the cell drawn and answer thefollowing questions: Label parts a, b, and c. If this cell iskept in a concentrated sugar solution.,what will happen, to parts 'b' and 'c'?

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SOLUTION :a. CELL wall b. cell membrane c. VACUOLE
Discussion
13648.

Question : Observe the cell drawn and answer thefollowing questions: How can the cell be brought back to the condition of cell shown in the diagram?

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SOLUTION :By PLACING the CELL in a hypotonicsolution again.
Discussion
13649.

Question : Observe the cell drawn and answer thefollowing questions: Give technical term for the conditionof that cell in concentrated sugarsolution.

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SOLUTION :CELL MEMBRANE and VACUOLE will SHRINK
Discussion
13650.

Question : Observe the cell drawn and answer thefollowing questions: Define the process involved for shrinkage of b and c part.

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SOLUTION :EXOSMOSIS
Discussion