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12451.

Question : Refer to the given figure showing structure of Malpighian corpuscle. To facilitate ultrafiltration through glomerular capillaries "______"

Answer»

PART 'D' is NARROWER than part 'A'
part 'A' is narrower than part 'D'
part 'C' is narrower than part 'D'
part 'B' is narrower than part 'D'

Answer :A
Discussion
12452.

Question : Refer to the given figure Select the correct statement regarding the labelled parts A-C

Answer»

The inner wall of `B` towards `C` is thick and elastic.
The OPENING and closing of the STOMATA is due to change in the turgidity of `B`
The opening of the stoma is aided due to the orientation of `A` in the cell walls of `B`.
all of these.

Solution : In the given figure labelled PART `A,B` and `C` represent microfibrils, guard cell and stomata APERTURE respectively.
Discussion
12453.

Question : Refer to the given figure representing mechanism of translocation and select the option which correctly identifies A.B and C

Answer»

A-phloem ,B- SUGARS enter TUBE , C-`Sugars leave sieve tube
A- XYLEM , B - Sugars enter tube , C - Sugars leave sieve tube
A- Xylem , B- Sugars leave sieve tube, C - Sugars enter sieve tube
A- Phloem , B - Sugars leavs sievetube , C - Sugars enter phloem, It can be demonstrated by

SOLUTION :N//A
Discussion
12454.

Question : Refer to the given figure in which A refers to pulmonary artery pressure and B refers to right ventricular pressure. Identify P,Q,R and S in the figure and match with the list (i-iv) given below (i) Isovolumetric ventricular contraction (ii) Ventricular ejection (iii) Isovolumetric ventricular relaxation (iv) Ventricular filling

Answer»

P-(iv),Q-(iii),R-(ii),S-(i)
P-(ii),Q-(iii),R-(i),S-(iv)
P-(iv),Q-(i),R-(ii),S-(iii)
P-(i),Q-(ii),R-(iii),S-(iv)

Solution :The pressure changes in the right ventricle and PULMONARY arteries are QUALITATIVELY similar to those for the LEFT ventricle and aorta. These are striking quantitative differences, however. Typical pulmonary artery systolic and diastolic pressures are 25 and 10 mm Hg, respectively, compared to systemic ARTERIAL pressures of 120 adn 80 mm Hg. Thus the pulmonary circulation is a low-pressure system. Despite the difference in pressure during contraction, however, the stroke volumes of the two ventricles are the same. During isovolumetric contraction and relaxation, the ventricular volume does not change, though the ventricular pressure increases and decreases respectively.
Discussion
12455.

Question : Refer to the given figure of pituitary gland and select the correct option for the question that follows. What will be the effect if part C is been removed?

Answer»

OXYTOCIN and ADH will not be synthesised.
Oxytocin and ADH will be synthesised but could not be stored.
only synthesis of oxytocin will occurs
Only synthesis of ADH will occurs.

Solution :In the given FIGURE, C represets posterior pituitary. Posterior pituitary stores and releases. Two hormones. i.e., oxytocin and ADH which are actually synthesied by the hypothalamus and are transported axonally to NEUROHYPOPHYSIS,. Or posterior pituitary.
Discussion
12456.

Question : Refer to the given figure Identify the lavbelled parts (A-H) and select the correct option.

Answer»

A-Symplastic PATH,B-Apoplastic path,C-Cortex,
D-Endodermis,E-Casparian STRIPS,F-PERICYCLE,
G-Xylem,H-Phloem
A-Apoplastic path ,B-Symplastic path,C-Cortex,
D-Endoermis,E-Casparian strips,F-Pericycle,
G-Xylem,H-Phloem
A-Apoplastic path,B-Symplastic path ,C-Cortex,
D-Endodermis,E-Casparian strips,F- Pericycle,
G-Phloem,H-Xylem
A-Symplastic path ,B-Apoplastic path ,C-Cortex,G-Phloem,H-Xylem
D-Endodermis ,E-Casparian strips ,F-Pericycle,
G-Phloem,H-Xylem

Solution :N//A
Discussion
12457.

Question : Refer to the given figure and select the option which correctly identifies A,B and C

Answer»

`{:(,A,B,C),(,"XYLEM","Phloem","Stomatal PORE"):}`
`{:(,A,B,C),(,"Pnloem","Xylem","Stomatal pore"):}`
`{:(,A,B,C),(,"Pnloem","Xylem","Guard cell"):}`
`{:(,A,B,C),(,"Xylem","Pnloem","Guard cell"):}`

SOLUTION :N//A
Discussion
12458.

Question : Refer to the given figure and select the correct statement. (i) A, B, and C are histogen of shoot apex. (ii) A Gives rise to medullary rays. (iii) B Gives rise to cortex. (iv) C Gives rise to epidermis.

Answer»

i andii only
II and III only
i and iii only
iii and iv only

ANSWER :C
Discussion
12459.

Question : Refer to the given figure and select the correct statement.

Answer»

Solution of CHAMBER `B` has a lower WATER potential than chamber `A`.
Solution of chamber `A` has lower SOLUTE potential than chamber `B`.
Solution of chamber `B`has lower solute potential than chamber `A.`
Both `(a)` and`(c)`

Solution :In the given figure chamber A has less solute moecules than chamber B. The more the solute MOLECULES,the lower is the water potentail and solute potential.
Discussion
12460.

Question : Refer to the given figure and select the correct option regarding this.

Answer»

WATER will diffuse across the membrane to raise the level of solution in the FUNNEL.
Pressure can be APPLIED to raise the water MOVEMENT into the funnel.
Sucrose solution is an osmoticallu active solution which cannot absorb water.
all of these.

Solution :The given figure is a demonstration of osmosis in which thistle funnel is filled with sucrose solution and kept inverted in a beaker containing water will diffuse acrossthe membrane to raise the level of the solution in the funnel. Pressure can applied to stop the water movement into the funne. Sucrose solution is an osmotically active solution and can absorb water.
Discussion
12461.

Question : Refer to the given figure and identify cell A,Band C.

Answer»

`A-"Plasmolysed:B-FLACCID,C-TURGID"`
`A-"Flaccid,B-Turgid,C-Plasmolysed"`
`A-"Turgid,B-Plasmolysed,C-Flaccid"`
`A-"Turgid,B-Flaccid,C-Plasmolysed"`

SOLUTION :N//A
Discussion
12462.

Question : Refer to the given figure and identify P,Q,R and S.

Answer»

`{:(P,Q,R,S),({:("Facilitated"),("DIFFUSION"):},{:("SIMPLE"),("diffusion"):},{:("Active"),("transport"):},{:("Passive"),("transport"):}):}`
`{:(P,Q,R,S),({:("Simple"),("diffusion"):},{:("Facilitated"),("diffusion"):},{:("Passive"),("transport"):},{:("Active"),("transport"):}):}`
`{:(P,Q,R,S),({:("Simple"),("diffusion"):},{:("Facilitated"),("diffusion"):},{:("Active"),("transport"):},{:("Passive"),("transport"):}):}`
`{:(P,Q,R,S),({:("Facilitated"),("diffusion"):},{:("Simple"),("diffusion"):},{:("Passive"),("transport"):},{:("Active"),("transport"):}):}`

ANSWER :B
Discussion
12463.

Question : Refer to the given diagrammatic representation of the machanism of action of a protein hormone. In which of the following options correct labelling of A,B and C is given?

Answer»

`{:(A,B,C),("Generation of second messenger","Physiological","BIOCHEMICAL RESPONSES"):}`
`{:(A,B,C),("ACTIVATION of genes","Biochemical responses","Generation of second messenger"):}`
`{:(A,B,C),("Generation of second messenger","Biochemical responses","Physiological reponses"):}`
`{:(A,B,C),("Biochemical","Activation of genes","Physiological responses"):}`

ANSWER :C
Discussion
12464.

Question : Refer to the given diagrammatic representation of the transportation of oxygen and carbon dioxide in the blood. P, Q, R, S and T represent percentage of both gases in different forms. Select the correct option for P-T.

Answer»

`{:("P",Q,R,S,T),(23%,70%,7%,93%,7%):}`
`{:("P",Q,R,S,T),(7%,23%,70%,3%,97%):}`
`{:("P",Q,R,S,T),(7%,23%,70%,97%,3%):}`
`{:("P",Q,R,S,T),(70%,7%,23%,97%,3%):}`

Solution :Blood is the medium of transport for `O_(2)` and `CO_(2)`. About `97%` of `O_(2)` is transported by RBCs in the blood. The remaining `3%` of `O_(2)` is CARRIED in a dissolved state through the plasma. Nearly `20-25%` of `CO_(2)` is transported by `RBCs` whereas `70%` of it is carried as BICARBONATE. About `7%` of `CO_(2)` is carried in a dissolved state through plasma.
Discussion
12465.

Question : Refer to the given diagram. Match the labelled parts (A-J) with their functions and select the correct options. (i)Carries nerve signals to the brain (ii)Regulates the size of the pupil to let more or less light into the eye (iii)Changes the shape of the lens (iv)Photoreceptors are concentrated at this point

Answer»

(i)-B, (ii)-D, (III)-F, (iv)-H
(i)-J, (ii)-G, (iii)-I, (iv)-C
(i)-A, (ii)-C, (iii)-E, (iv)-G
(i)-G, (ii)-D, (iii)-C, (iv)-E

Solution :G' is optic nerve, 'D' is iris, 'C' is ciliary body, 'E' is FOVEA centralis.
Discussion
12466.

Question : Refer to the figures, (A, B and C) and arrange them in an order of list class lever, second class lever and third class lever.

Answer»

B,A,C
C,A,B
C,B,A
A,C,B

Solution :Movement takes place ALONG the joints which act as fulcurm of the level. One can observe functioning of all the three types of levers in the human skeleton.
The example of first CLASS lever is exhibited by the joint between ATLAS vertebra and occipital BONE of skull (figure B). When the head is raised, the joint is the fulcrum, contraction of back muscle is the effort, and facial portion of the skull acts as resistance. The second class level is exhibited by human body raised on toes (figure A). In this example, the ball of the foot is the fulcrum, the contraction of the calf muscles to pull the heel upward is the effort, and the body is the resistance. The flexing movements of the elbow of fore arm are based on the principle of third class lever (figure C). In this case, elbow joint is the fulcrum, the contraction of the BICEPS muscle is the effort and weight of the forearm is the resistance.
Discussion
12467.

Question : Refer the given reaction un derset("Maltose")(C_(12)H_(22)O_(11))+H_(2)Ooverset("Enzyme A")rarr underset("Glucose")(2C_(6)H_(12)O_(6)) Enzyme A used in the reaction, belongs to which class of enzymes?

Answer»

DEHYDROGENASES
TRANSFERASES
HYDROLASES
Lyases

Answer :A
Discussion
12468.

Question : Refer the given flow chart regarding different groups of kingdom plantae. which of the following is true regarding P,Q,R,S and T?

Answer»

Examples of GROUP 'P' include Riccia, Marchantia, Sphagnum etc.,
Members of group 'R' can be both HOMOSPOROUS as well as HETEROSPOROUS.
Group 'Q' includes seedless vascular plants having sporophytic plant body.
Group 'S' is more ancient than group 'T' and formed a dominant vegetation on earth some 200 milion years BACK in mesozoic era.

Answer :3
Discussion
12469.

Question : Refer the given figure showing some steps of citric acid cycle. What changes takes place during the conversion of A to B ?

Answer»

`CO_(2)` is LIBERATED
`NAD^(+)` is converted to `NADH + H^(+)`
GTP is formed from GDP
All of these

Answer :D
Discussion
12470.

Question : Refer the following diagram and identify the parts of a kidney indicated :

Answer»

a = cortex, B = nephron,c = PELVIS, d = medulla, E = URETER
a = cortex, b = medulla, c = nephron, d = pelvis, e = ureter
a = nephron, b = cortex, c = medulla, d = ureter, e = pelvis
a = nephron, b = cortex, c medulla, d = pelvis, e = ureter

Answer :D
Discussion
12471.

Question : Reductive Amination and Trans Amination.

Answer»

SOLUTION :
Discussion
12472.

Question : Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of

Answer»

Hydrophytes
Xerophytes
Mesophytes
Epiphytes

Answer :A
Discussion
12473.

Question : Reduction in platelets can cause clotting disorder.

Answer»


ANSWER :1
Discussion
12474.

Question : Reduction in pH of blood will .........

Answer»

reduce the rate of HEART beat
reduce the blood supply to the brain
decrease the afinity of HEMOGLOBIN with OXYGE
release BICARBONATE IONS by the live

Solution :decrease the afinity of hemoglobin with oxyge
Discussion
12475.

Question : Reduction division seen is zygote plasmodium ____

Answer»

SOLUTION :SPOROGONY
Discussion
12476.

Question : Intercalary meristem occurs mainly in

Answer»

ZYGOTE, SAC LIKE STRUCTURE, CLUB like structure
Zygote, club like structure, sac like structure
Club like structure, sac like structure and zygote
Sac like structure, club like structure, zygote

Answer :A
Discussion
12477.

Question : Reduces cellular glucose uptake : Hyperglycemia :: Decrease in blood glucose level :: …………..

Answer»

SOLUTION :HYPOGLYCEMIA
Discussion
12478.

Question : Reduced male gametophyte of gymnosperm is called pollengrain.

Answer»


ANSWER :TRUE
Discussion
12479.

Question : Reduce form of NADP^+ is abbreviated at NADPH.

Answer»

Solution :If `NADP^+` is reduced by COMBINING with one electron and one PROTON the resultant reduced FORM of `NADP^+` will be NADPH.
Discussion
12480.

Question : Red tides' are produced by massive blooms of:

Answer»

DIATOMS
DINOFLAGELLATES
RED ALGAE
BROWN algae

Solution :dinoflagellates
Discussion
12481.

Question : Red snow phenomenon is due to

Answer»

CHLAMYDOMONAS snowiae
Chlamydomonas nivalis
Both 1 and 2
None of the above

Answer :C
Discussion
12482.

Question : Red the following . In the above .A. and .B.respectively are

Answer»

DISSOLVED `O_(2)` and BOD
BOD and dissolved `O_(2)`
Dissolved `O_(2)` and COD
COD and dissolved `O_(2)`

ANSWER :A
Discussion
12483.

Question : Red skeletal muscles contain the pigment

Answer»

haemoglobin
myoglobin
leghaemoglobin
rhodopsin
Discussion
12484.

Question : Red rot of sugarcane and white rust of mustard are respectively caused by:

Answer»

Colletotrichum and Albugo CANDIDA
Colletotrichum and FUSARIUM
Pythium and Phytophthora
Albugo candida and PUCCINIA graminis
Discussion
12485.

Question : Red sea is red colour due to………..

Answer»

Dermacarpa sps.
Trichodesmium sps.
Sctonema sps.
Gloeocapsa sps.

Answer :B
Discussion
12486.

Question : Red rust of Tea is caused by

Answer»

Puccinia
Ustillago
Cephaleuros
Harveyella

ANSWER :C
Discussion
12487.

Question : Red muscles

Answer»

Solution :Contain more AMOUNT of MYOGLOBIN, mitochondria, store more `O_(2)`and SYNTHESIZES ATP e.g. flight muscles of birds.
Discussion
12488.

Question : Red eyespot of certain green algae is meant for

Answer»

PHOTOSYNTHESIS
PHOTOSENSITIVITY
Visibility
Respiration

ANSWER :B
Discussion
12489.

Question : "Red data book" - What do you know about it?

Answer»

SOLUTION :(i) Red Data book or Red list is a catalogue of taxa facing of extinction.
(ii) IUCN
(iii) WCU
The PURPOSE of preparation of Red List are :
(i) TO create awareness on the degree of threat to biodiversity
(ii) Identification and documentation of species at high RISK of extinction.
Provide global INDEX on declining biodiversity
Red list has eight catergories of species:
(i) Extinct
(ii) Extinct in wild
(iii) Critically Endargered
(iv)
(v) Vulnerable
(vi) Lower risk
(vii) Data deficiency
(vii) Not evaluated
Discussion
12490.

Question : Red and white blood cells are produced in the

Answer»

liver
spleen
extemities of LONG bone
plasma
Discussion
12491.

Question : Red algae occurs both in marine and fresh water.

Answer»


ANSWER :F
Discussion
12492.

Question : Red algae have green chlorophyll a that is like the one present in

Answer»

GREEN algae
cyanobacteria
MOSSES
HIGHER PLANTS
Discussion
12493.

Question : Red algae differs from green and brown algae in

Answer»

ABSENCE of CHLOROPHYLL a
Undifferentiated cells
Not having any FLAGELLATE stage
All the above

Answer :C
Discussion
12494.

Question : Red algae differ from green algae and brown algae in having :

Answer»

no CHLOROPHYLL a
no DIFFERENTIATED cells
haemoglobin within their cells
no flagellated STAGES in their life CYCLES

Solution :no flagellated stages in their life cycles
Discussion
12495.

Question : Red algae are similar to blue-green algae in possession of

Answer»

GAS vacuoles
Filamentous body
Cell WALL components
Phycobilins

Answer :D
Discussion
12496.

Question : Recurrence of floods in the plains of North India is due to excessive

Answer»

SITUATION of DAMS
RAINFALL
Agriculture
Doforestation in catchment AREA

Solution :N//A
Discussion
12497.

Question : Recongnise the figure and find out the incorrect option

Answer»

On MATURATION 'a' possesses a peripheral cytoplasm and large vacue but lacks a NUCLEUS
b' stores food material in the FORM of starch or fat, and other substances like tannins
c' helps in the mainitaining the pressure GRADIENT in 'a'
a' and 'c' are not found in pteridophytes and gymnosperms.They have albuminous cells and sieve cells

SOLUTION :Phloem parenchymastores food materia and other substances like resin, latex and mucilage
Discussion
12498.

Question : Recongnise the figure and find out the correct matching

Answer»

a-cortex,b-endordermis,c-percycle,d-protoxylem,e-metaxylem
b-cortex,c-endordermis,a-percycle,e-protoxylem,d-metaxylem
a-cortex,c-endordermis,b-percycle,d-protoxylem,e-metaxylem
a-cortex,b-endordermis,e-percycle,d-protoxylem,e-metaxylem

Solution :
Discussion
12499.

Question :Recongnise the figure and find out the correct matching.

Answer»

a - nucleus, b - vacuole, c - symmetric SPINDLE, d GENERATIVE cell, e - VEGETATIVE cell
b - nucleus, a -vacuole, c - asymmetric spindle, e - generative cell,d - vegetative cell
a - nucleus, b - vacuole, c - symmetric spindle, e generative cell, d - vegetative cell
b - nucleus, a - vacuole, c - symmetric spindle, d generative cell, e - vegetative cell

ANSWER :2
Discussion
12500.

Question : Recombination of chromosomes occur at ____

Answer»

Zygotene
Leptotene
PACHYTENE
Diplotene

Solution :Pachytene
Discussion