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| y A prothallus is Pics tutte d we structure in pteridophytes formed ion * seit (b) a sporophytic free-living structure aS a a i i 6 formed F (c)a gametophytic free-living structure aks Pai ~ (d) a primitive structure formed after fertilisa ZOOLOGY: [Q.No- PART-A ferent gt if anir [Jt Mechanisms of breathing vary among different groups 0" ® fi i aint ect state fevels of organisation, which option. contain all corre latworms. (i) Lower invertebrates like sponges, coelenterates, fl diffusion over their entire body surface | (ii) Barthworms are used their moist cuticle for exchange 2 with COz: ) Insects have tracheal tubes to transport atmospheric air within the body i : sy most of the aquatic (iv) Special vascularised structures called gills are used b h xchange of g (¥) Terrestrial forms use vascularised bags called lungs for (vi) Among vertebrates, fishes use gills whereas reptiles, birds and mammals use skin for réspiration (a) (i), (i), (iii), (v) and (vi) (b) (i), (ii), (iv) and (vi) Li), (ii), (ii), (iv) and (v) (d) All of 52. Which of the foltowi: he above equences is correct to initiate inspirat (i) The contraction of external int (ii) Volume of thorax incre rcostals muscles raises the rib: es in the dorso-ventral axis. (iii) Intrapulmonary pressure decreases, (iv) Diaphrag: (v) Air rushes into, tu mM contraction. (vi) Intrapulmo () (iv), (), Gi), (v), (ii, Nerti), Gi), Git, (vy Civ). (i), (ii), (iii), (v), (vi ), (ii), (iii, ( s. achea divides into a right and left primary br Each i undergo 3pen into alveoli, choose cor ption regarding respiratc Aas The tracheae, primary, s nd tertiary bronchi, and in : : incomplete cartilaginous rings (iit{ The branching network of bronchi, bronchioles 7 (iy) The part th the external nostrils rmin: ch ducts form the conducting part o} spirator (4) (i), (ii), (iii) and ( or), (ii) and (iii (c) (ii), (iii) and ( d) (i), (ii), (iii) and (iv) 154. Which of the followi ices is correct to initiat tic (i) Relaxation o nal intercostals muscles and r aphragm and s' position (ii) Air expelled from lung: (iii) Volume of thorax: dec (iv) Intrapulmonary py AA) (), (iil), (iv), (ii) (b) (ii), (iv), (iii), (i) (©) (iv), (iii), Gi), Gi) 45 (i), Gi), (ili), (iv) Respiration involves followin ¢ increases, renomenon, choose correct order for completion of respiration, (i) Breathing or pulmopary ve released out. ~ (ii) Transport of gases by the blood, (iti) Diffusion of O, and CO, between blood and tissu (iv) Diffusion of gases (0, and CO,) acros (¥) Utilisation of O, by the + 0, (i), (iv), (v), (iii) SIT), (ii), (iii), (iv). ) ()(), fiv), (iii), (it), (vy) “Hi, Gv). (id, Git). lation by which atmospheric air is drawn in and CO, rich alveolar ai é S alveolar mem ES os cells for catabolic Feactions and resultant release of CQz-~ {a) Total capacity of | : What will be the Po, oe a a Aplemental alt yenntal ait supplem (a) Po, lesser. Poo, high n plemental al” ed 19 those in the the alveolar air? c) Po, higher, Mosphcric air comPN (©) Po. Poo, higher Bpheric Pox wighe her. Pcos | Mark incorrect stater SF P Ment in 4 dy Po ESSE OP (a). Diffusion membrane j is Toll, Ai (b) Solubility of Cc Made us 2 is higher of3. ‘1 Cali: (€) Breathing volumes are ey | aes gh conc. of hydrogen ee te a: Ons fay favo ae nation. 1 blood daa igh pin fort sues under normal ely, ac J, to the tissue TS following amount of * “ (b) 25 mt 0: ml MoE rane is made upg pee in squamov us epitheting oft aie jor layers naMEY” sn of alveolst CAPUIATS mer e inbetween thes (by The endothe! i 2 caste (dyAll of the abovs sion membrane «1s made up oh jor layers? Vite (Fou ve Of blood circular : ar sorta, pala litinhuman. Went Puimionary vein, pulmonary ate" orta, pulmonary attery, pulmonary Vein - 40 mig mm Hg. 180. ee P- The structure which prevents th ay Hyali (c) Expiratory cap Tidal volume in human b £2)1000 mn} $9 Total capacity of ju, (a) Larynx (©) Glottis (a) Bronchioles (c) Trachea (a) Bronchus What are the func (a) Air is warmed (c) Dust particle in air is filtered numb Lung: {a) Tracheols nave a la (¢) Bronchi (a) Nostril (a) Gullet Type of car The blood coming fa) CO. 3) Thoracic ca Ribs and st c) Ribs, GAA. Wiiichis « common passage in swallowins the correct equation. . Oxygen carried in inhalation ultimately reaches: . In man, voice box is known as (b) Syrinx ns that are performed by the na fey Lar (b) Air is hui (GALI are true f narrow tubes called?” <6) Bronchioles Alveolar duc YE Glottis is opening in the floor of (b) Uvula ‘c) GI ings is richer than that entering int¢ co) N ge of man is formed PART orm: PI (b) Vi ings is (b) 1500 mi vital capacity * tidal air asal cavity \ tion is capacity 4é7F unctional residual capacity {5} 500 ml | expiration per m capacity of lungs (6) large and cat : mall spores 3. Heterospory Is the P fee (@) diploid ang tetraploid alike spor od : alike spores (a) sexual st "ike spores pe waking 6 Adi Pp i i 4 dianty (€) haploid and Cp & «also known & nb (d) Lycopodium MELaspory lasigudgoe (oy Psilotu rise 2X) Equisetum rages che EN f Megaspore mother cell IV" ccrect optiON! bb) A-meioticg Identify A and B and chioose AD Antclly;B-four / ‘A-mitotically; B-~° (c) A-amitotically slow are corre’! 06,-Which of the statements & of cht (a) Green algae bg an x rm of a special Jgae store food in the 10" 2 pplets e Pi may be stored in the form of ot div (c) Vegetative reproduction ‘occurs throug) Ad) All of the above 107. Identify the statement t (a) Most rhodophyceae grow at great of the spectrum ® The wavelengths of light that are present in algae (c) Phycoerythrin absorbs all the li so Light reaching the greatest dept absorbed by phycoerythrin poe w hich of the following statements about bryophytes @'° ‘ncorrect? (a) The sperms are biflagellate (b) The sperms are released into water (c) Zygotes undergo reduction division immedi (d)-Both (b) and (c) 199° Which of the statements is incorrect about Marchantia (a) Plant body is a thallus-like structure, closely attached to substrate dinomitotical} about £7CEN algae’? chlorOPhyll- a ang pf » Betwo jue to the Fi ised Structup ision, fra sins why todo et la hat correctly explains Wy t depths. ¢! absorbed by chilor ight waves hin water is in the t and fuse with the egg to produce the ately (b) Sporophyte is differentiated into foot, seta and capsule (c) Gemma cup located on the thalli (d) None of the above Which of the statements given below are incorrect about pteridophytes? (a) They are called vascular cryptogams {b) They produce seeds rather than spores (c) They are used for medicinal purposes (d) They are used as soil binders ~ 411, Which one of the following statements is correct? (a) Horsetails are gymnosperms (6) Selaginella is heterosporous, while Salyinia is homosporou® (©) Ovules are not enclosed by ovary wall in gymnosperms (d) Stems are usually unbrancned in both Cycas 11Z Consider the following statements. c I. Agar, one of the commercial products obtained from Gelidium and Gracil and in preparations of ice-creams and jellies hen lame aap digo IV. Volvox forms Seiical ee ike Porphyra, Laminaria and Sargassul Which of thegeteea nies with hydroeo||idal substance given above and Cedrus atia is used to grow m are used as foode~ syla are Correct? M(H I and I (c) Hand II AdyI and Il (@) 1, Mand 1 3-Consider the following statements re, i ‘Chlorophyceae- com gardin; jon in class~ b 1. Asexual reproduction is mainly by flagel rae dae veduced in zoosporangie= Il. The sexual reproduction shows consideral formation of sex cells and itr be isogamous, anisogamous and oogamous, ‘Choose the correct option. true, but I is false is fle, is rue ied zoospores P ble variation in the tyPe am *ratiediral geome id and is found in mo: (©) diploid and is found in pteridoph te 135° Roots formed from prolongation of radic Aes primary root (b) secondary roo’ 126° Primary roots and its branches constitute (a) adventitious root system (c) fibrous roots “In monocotyledonous plants, the primary root is st ‘These roots originate from the base of the stem and co (@ prop roots (b) pneumatophores Which plant amongst following bears fibrous (oy Wheat plant gst the followi root sys! (a) Mustard plant Which amor (a) Direct elongation of radicle - Primary roots~ Ab) Root system originating from the stem's branch-F \erRoots not arisin; he ra (d) Constitution of primary root Which of the @) Roots help in water and mineral abs options contains mist from Stilt roots and its branches ~ Ta ollowing is incorrect? (b) Roots provide a proper anchora; (c) Roots store food material and synthesise plant gro (aRoots lack meristematic activity Which of the Root sate dp prothall h Whic (a) Br 138. Which of the fi (a) Pinus cular tissue, produces spor I Pteridophyta josperm has coralloid rc cas PART-I tem (c) Grou atched pai p root sysbenr A B (b) thalloid sporophyte called prothallus (4) thalloid, photosynthetic sporophyte but does not have seeds? (d) Angiosperms associated with Np-fixing cyanobacteria? (d) Ginkgo ‘ymnosperms oats (c) Cedrus to. 109) TOPIC: Chemical Bonding “A 10% pound Which of the, follow SAG valent com Helv ak the. following Is:no.8.chamcterigass sf etry! Soe ASF detinll® | dy Smal. BAtivity berwe N's (RD EXCELLE CLASS: LD} T PY 5p OR OTTO, PU ScteNCE COLLEG N xly Test 07 ay T Wee Date: 21/ 07 Find the apps spctION cteration of 10 MS &* 10 ms Sy of mas oii 1 =) 1 kg —. ( Aforce of 10. acts o; . 7 x ISN (2)0.25 n —. . au s ee A man i Ifthe throws 4 balis N 30N (a)1 When a train takes (@) acceleration of motio, (©) inertia of directior The radii of circu if they have a constant c (a) V3:4 b) 4 Two forces of magnitude 5 N right and 10 N force acts (a) Resultant force is 15 (c) Resultant force is 5 °N toward The two f (a) Veloc Impulse is tors on which the moi ty, time (b) Mass, weig (c) equal to ra A body of mass 60 kg is suspended t equilibrium. The tension in the string P is Rod A moving at constant velocity. The total force F acting An objec a ae , (b) F= mv (ey ae aN ss ok jeore 6 ¢ obter f srce acting is not zero on 4 ms fae (b) a ball falling with te aan ee (d) atruck moving with cor ite held stationary ; as Jow the Jaw of conservation of linear momentum ora system to follow the law t Mr srnal force acting on the system is zero. ee eae fence acting on the system i finite and time of collision in ne otal external force acting ¢ a oe | force acting on the system 1s Zero ee eee (©) Gli) only (d) (i) or (ii) b) (ii) 0 E : Ee Ve ants, the observer in an inertial frame in the following c srrestrial experiments For ordinary terres t giant wheel Z : 2 : (a) a child revolving in a giant ¥ ETE gens ot 2b0\aa SPAS at ro | b) a driver in a sports car moving 4 | (b) a driver in a spo re tauineal | (c) the pilot of an aeroplane w hich i | i ; harp COVE MM tte) cil as - eae ee ith a uniform velocity ¥. It is given an impulse such that its velocity | A particle of mass m is moving W 2 A i jal to impulse is equal y becomes V2. The impuls sal “aD (my +y,) gaees +m(v} (a) mflv2l — |vsl] (3 ves an accelerall ‘A body, under the action of a fo, mass of this body must be (a) 2VT0 kg, (6) 10k, A ball of mass 100 g is movi ‘ i Poa os (g) 102 Ks r th bat rebounds witha p20 KB hit wil ( 4On bacas en the Force ‘exerted on the ball by wi ses of 105 Wi vocty ON gets for 0.01 ® velocity of 10 ms~!, The fi ria ms”*: The force of the bat py the D8 f) 400 N ie @ F (@) 50N 4cv700N is 0, then the magnitude oc the Two forces of e SUNN eee Fees of equal magnitude F act iat a point. If he 3 : resultant force is ; | ee ie bet REC Sa (@) FY2d—smd) (Freres) ©? Fel avelosity of 50 ms~? and reflect 3 2 a velocity ae OF 0.03 kg mass each, hit a plate at the rate of 2oobullet/S yi Newton is yy e198 Vo back with a velocity of 3 Te ee ili pate locity of 30 ms~}. The average free ating on p (d) 480 pt ae Ole a) 12 e 3 b) 180 © Ifa light bo : E a light body and a heavy body have equal mome™™ then bod: heavier body nthe (a) The lighter body has greater kinetic energy th#! is eavier body body (b) The lighter body has le: i 33 Kae t body has less kinetic energy than the he! Sete oy of the DOeNtr' (6) The kinetic energy of the lighter body is equal tthe Kinetic nT (d) The kinetic energy of both the bodies are independent of somone rhe average force A ball of mass 0.2 kg moving with a ae 20 m/s 1 prought to rest n°. 1s.7 applied to the ball is i (a) 20N (b)30N 40.N ar I sECTIONB tor, The elevator first aces!ers *S fuagine aiperson standing on a weighing mischine Imes Ce he eleva Bie : ighing machine PIS asim and minimum nt velocity and finally decelerates © S{°P oe mae weight of that person consice then moves with a const ring recorded are 80 kg and 64 1 e 80 kg and 64 kg respectively, Find out the g = 10 m/s (a) 70 kg ©) 4) 65 ke sock with a A bullet of mass m enters a wooden bloc! 4 vy and emerges out of bloc F gS se ation inside the block) FEE seche averaue ioece Which ata. re tgs orem umtTorTE Seer ON ind the position o! icle which starts from rest at time = 10s he force acting on the particle with a mass of 50g is (St + 10j a) (100003 + 5000})m b) (50001 + 5000})m c) (50001 jm (100001 + 10000) sbjec g moves at a constant speed of 15 ms f - ec ject gives it a speed 5 ms~ firection. The i sbject is ¢ stopped by a retarding fore retardir e ped ina distance ()5 . ssses 4 kg and 6 kg are as shown in : «1 force of 12.N B. Find the maximum horizontal fore : 1c gtiotiddlentaiae g=10m's and then B. The hole in B is 15 4 Bare separated py 150 m . A bullet pierces * tfthe bullet jling horizontally at the time of hitting A , then the velocity travel! >= 10 ms) 2 1 ae 5) 20003 m5 4 (¢)300V3 m.s~ (d) 50073 m.s~ 
