InterviewSolution
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InterviewSolution
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.
| 19301. |
Question : Companion cells are not found in |
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Answer» FERNS |
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| 19302. |
Question : Companion cells are present alongside the |
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Answer» XYLEM vessels |
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| 19303. |
Question : Companion cells are seen associated with: |
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Answer» SECONDARY cambium |
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| 19304. |
Question : Companion cells are usually associated with |
| Answer» Answer :D | |
| 19305. |
Question : Companion cells are closely associated with |
| Answer» Answer :C | |
| 19306. |
Question : Companion cells are absent in which groups of plants ? |
| Answer» SOLUTION :GYMNOSPERMS and ANGIOSPERMS. | |
| 19307. |
Question : Companion cells are |
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Answer» Sclerenchymatous in nature |
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| 19308. |
Question : Communicable disease means |
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Answer» the disease TRANSMITTED from MAN to man |
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| 19309. |
Question : Communication junctions allow the cardiac muscles to |
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Answer» CONTRACT independently |
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| 19310. |
Question : Commonly in a mature fertilised ovule n, 2n and 3n condition is respectively found in |
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Answer» ANTIPODALS, synergids and INTEGUMENTS |
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| 19311. |
Question : Commonly found species of frog in India |
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Answer» Haplobatrachus |
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| 19312. |
Question : Common round worm belongs to the class |
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Answer» Phasmidia |
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| 19313. |
Question : Common name of some animals are given in Column I, write their scientific name in Column II |
| Answer» Solution :(A) Tiger - Panthera tigris. (B) PEACOCK - PAVO cristatus. (C) Housefly - Musca domestica. | |
| 19314. |
Question : Common name of Sepia is(a) dogfish(b) silverfish(c) cuttlefish(d) flyingfish |
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Answer» DOGFISH |
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| 19315. |
Question : Common earthworms in India are |
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Answer» PHERETIMA and LUMBRICUS |
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| 19316. |
Question : Common cold is not cured by antibiotics because it is |
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Answer» CAUSED by a virus |
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| 19317. |
Question : Common character found in chloroplast and mitochondria I. both involve in metabolism II. Photophosphorylation III. Both are semi autonomous organelles IV . Both contain oxysomes |
| Answer» Answer :D | |
| 19318. |
Question : Common cold is caused by |
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Answer» SALMONELLA TYPHIMURIUM |
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| 19319. |
Question : Common characteristics of cockroach, housefly and mosquito are ……………….. . |
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Answer» ONE pair each of wings and HALTERS |
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| 19320. |
Question : Common character found in pea and Australianacacia leaves is |
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Answer» Tendrillar LEAFLETS |
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| 19321. |
Question : Commissural stigma (Along carpellary cohesion plane) occurs in family |
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Answer» Solanaceae |
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| 19322. |
Question : Comment upon the role of ear in maintaining the balance of the body and posture. |
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Answer» Solution :Vestibular system is sensory structure of inner ear which helps the body to maintain its balance. Inner ear has two pair of organelles - semicircular canals which RESPOND to circular movement. Utricle and saccule of vestibule respond to change in the POSITION of head due to gravitational changes. Each semicircular canal contain hair cells. Movement of head causes transpart of endolymph, which BRINGS change in hair cells, which are FOUND in jelly like capsule utricle and saccular are otolith, having ear STONES. When head bows down or position of body changes movement occurs in earstone, hair cells bends. 
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| 19323. |
Question : Commercial pearl is formed by : |
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Answer» Oyster |
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| 19324. |
Question : Comment upon the hormonal regulation of selective reabsorption. |
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Answer» SOLUTION :Selective reabsorption INVOLVES transport of useful materials like large amount of water, whole of glucose and amino acids, most of `Na^(+)` and `Cl^(-)`, some urea, etc. from glomerular filtrate into blood capillaries. It is regulated by a number of HORMONES e.g. (i) Role of RAAS:Refer Answer no. 2-NCERT Exemplar Problems Solved. (ii) Role of ANF : Atrial Natriuretic Factor is secreted by smooth muscles of atria of heart in RESPONSE to increased blood volume and blood pressure. ANF inhibits the release of renin from juxtaglomerular cells so is antagonistic to RAAS. (iii) Role of ADH:Increased blood volume and decreased osmotic pressure of blood due to excess of water in body fluids inhibits the release of ADH from posterior lobe of pituitary. Low ADH level in blood lowers the permeability of wall of DCT and collecting tubules. So water reabsorption is reduced and urine output is increased to maintain blood volume and osmotic pressure of blood. |
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| 19325. |
Question : Comment upon the habitats and external features of animals belonging to class - Amphibia and Reptilia. |
| Answer» SOLUTION :For ANSWER see section-A QUE. No. 23 and 24. | |
| 19326. |
Question : Comment upon the gametic exchange in earthworm during mating. Discuss the physiology in reproduction of earthworm. |
| Answer» Solution :Reproduction is a unique process in earthworm.Earthworm is a bisexual animal. Matting takes place in monsoon in earthworms and its done after MATURITY of sperm CELLS. Exchange of reproductive cells and mating during physiological process of reproduction can be described as per below. (i) Earthworms are protandrous (e.g. sperm cells become adult before egg cell becomes mature) (ii) M ating occurs by external fertilization in earthworm. (iii) During mating exchange of sperm cells occur between two earthworms. (iv) Both the earthworms take out their half bodies from near by burrows and opposite genital PORES exchange amount of sperm cells. It is called spermatophores (v) During this process, skin surrounding male genital pore raises and forms temporary papillae which like penis enter into spermathecal pore and keeps it open. (vi) One spemathecae gets filled then earthworm performing reproduction (GO further and come against male) genital pore of another spermathecae. This process gets COMPLETED after one hour of mating. (vii) Spermcells mainly resides in Diverticula in spermatheace while Ampule is associated with the secretion of nutrients for sperm cells. (viii) Sperm cells and egg cells enter into cocoon which is secreted by clitelum gland. (ix) Thus fertilization takes place in earthworm by external and fertilization by an agent. | |
| 19327. |
Question : Comment on various chemicals inducing stomatal closure. |
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Answer» Solution :Carbon-di-oxide INDUCES stomatal closure and acts as a natural antitranspirant. Further, the advantage of using `CO_(2)` as an antitranspirantis its inhibition of photorespiration. Phenyl Mercuric Acetate(PMA), when applied as a foliar aspary to plants, induces partial stomatal closure for two WEEKS or more without any TOXIC EFFECT. Use of abscisicacid highly induces the closing of stomata. Dodecenylsuccinic acid also effects on stomatal closure. |
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| 19328. |
Question :Comment on the statement - Telophase is reverse of prophase. |
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Answer» Solution :From the following DIFFERENCE it can be understood that telophase is reverse of prophase. Prophase : Chromosomes become clear and condensed. Chromosomes become short and THICK spindle fiber is formed cellular organelles ER, golgibodies disappear. Nucleus and nuclear MEMBRANE disappear SLOWLY. Telophase : The group of chromosomes organize as nucleus spindle fibres disappears. Nuclear membrane is reformed. DAUGHTER nucleus forms into polar regions cellular organelles ER and golgi complex are reformed. |
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| 19329. |
Question :Comment on the statement - Meiosis enables the conservation of specific chromosome number of each species even though the process per se, results in reduction of chromosome number. |
| Answer» Solution :The certain number of chromosomes is maintained in living organisms possessing SEXUAL reproduction by meiosis from generation to generation. During the process number of chromosomes becomes HALF. GENERALLY due to fusion of male and female gametes it is restored in next generation. Meiosis REPRESENTS genetic VARIATIONS from one generation to other generation. | |
| 19330. |
Question : Commenton the statement respiration is an energyproducingprocess but ATP is being used in some stepsof the process. |
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Answer» Solution :Respiration is a CATABOLIC process occuring STEPWISE. In which energy is produced whereenergy is required in biotic process, energy is provided by hydrolysisof ATP. When breakdown of one ATP takes place ADP + Pi are released. Similarly onephosphate BOND BREAKS and 73Kcal energyis obtained . ThusATP is used andrespiratorybalance sheet is balanced. |
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| 19331. |
Question :Comment on the social organization of honey bees. |
| Answer» Solution : In honey bees, a highly organized division of LABOUR is found. A well DEVELOPED honey bee COLONY consists of the Queen, DRONES and WORKERS. All the three types depend on each other for their existence. There is normally one queen, 10,000 to 30,000 workers and few hundred drones (male bees) in a colony. | |
| 19332. |
Question : Comment on the statement 'living state is a non-equilibrium steady state to be able to perform work'. |
| Answer» Solution :Living organisms do not show equilibrium, because in STEADY state system can not work. Living organisms exists in a steady-state characterised by concentrations of each BIOMOLECULES. These biomolecules are in a metabolic flux. Any chemical or physical PROCESS moves SPONTANEOUSLY to equilibrium As living organisms work continuously, they can not afford to reach equilibrium. Hence, the living state is a non-equilibrium steady state to be able to perform work. | |
| 19333. |
Question : Comment on the role of air sacs in increasing the respiratory efficiency in birds. |
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Answer» Solution :1. The respiratory ORGANS are the lungs and air sacs. The LARYNX opens into the trachea and is supported by a series of closely set rings. 2. The trachea divides into two bronchi, each of which divides and sub-divides into smaller branches, ultimately ENDING in CAPILLARIES which lies intermingled with the capillaries of the pulmonary vessels. 3. Lungs are solid spongy organs, attached dorsally to the ribs. 4. There are nine air-sacs: a pair of cervical sacs at the base of the neck one on each side, a single median interclavicular air sac connected with both lungs and situated in between the two limbs of the furcula and on either sides it gives off an extraclavicular air sac communicating with an air - cavity of the HUMERUS and a clavicular air sac, two pairs of thoracic air sacs and a pair of abdominal air sacs. 5. This complicated arrangement adds to the efficient respiratory function and maintenance of a high temperature. |
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| 19334. |
Question : Comment on the methods of eugenics. |
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Answer» Solution :Application of the laws of genetics for the improvement of human RACE is called eugenics. Two methods of Eugenics are: (i) CONSTRUCTIVE method or Positive eugenics (ii) Restrictive method or Negative eugenics (i) Positive eugenics: Positive eugenics ATTEMPTS to increase consistently better or desirable germplasm and to preserve the best germplasm of the society. The desirable traits can be increased by adopting the following measures: (a) EARLY marriage of those having desirable traits (b) Subsiding the fit and establishing sperm and egg banks of precious germ plasm. (c) Educating the basic principles of genetics and eugenics. (d) Improvement of environmental conditions. (e) Promotion of genetic research. (ii) Negative eugenics: Negative eugenics attempts to eliminate the defective germplasm of the society by adopting the following measures: (a) Sexual separation of the defectives (b) Sterilization of the defectives (c) Control of IMMIGRATION and (d) Regulation of marriages |
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| 19335. |
Question : Comment on the life cycle and nature of a fern prothallus. |
Answer» Solution :• The LIFE cycle of Nephrolapis (Dryopteris) clearly shows alternation of GENERATION. Gametophytic stage (N) comes with alternation of sporophytic stage (2n). Diagram shows complete life cycle.  • Prothallus : The prothallus of Fern is multicellular, free living, thallces type, HAPLOID and autotrophic structure. It is produced from spores which are proceed meiotically in sporophyte. These spores geminate with precell germ tube and possesses 3-6 cellular filbrous structure and tube and are or TWO Rhizoids which later on develops into gametophyte. 
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| 19336. |
Question : Comment on the functions of alary muscles? |
| Answer» Solution :Alary muscles are the triangular muscles that are RESPONSIBLE for blood CIRCULATION in the cockroach. Each segment has ONE pair and a PUMPED anteriorly to sinuses again. | |
| 19337. |
Question : Comment on the function of adrenalin |
| Answer» Solution : Adrenalin increases liver GLYCOGEN breakdown into glucose and increases the release of fatty acids from fat cells. During emergency, it increases heart BEAT rate and blood pressure. It stimulates the smooth muscles of cutaneous and VISCERAL ARTERIES to decrease blood flow. It increases blood flow to the skeletal muscles and nervous tissue. CHEMICAL Coordination and Integration | |
| 19338. |
Question : Comment on the dislocation of joints. |
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Answer» Solution :Dislocation of joints and treatment: Dislocation of joint is the total displacement of the articular end of the bone from the joint cavity. The normal alignment of the BONES becomes altered. Joints of the jaw, shoulders, fingers and thumbs are most commonly dislocated. Dislocations of joints are classified as (i) Congenitaldeformities (ii) Traumatic (iii) Pathological and (iv) PARALYTIC. (i) CONGENITAL deformities are due to genetic factors or factors operating on the developing foetus. (ii) Traumatic dislocation is due to serious violnce. It occurs in the shoulder, elbow and hip. (iii) Pathological dislocation is caused by some diseaseslike tuberculosis. It may cause dislocation of the hip. (iv) Paralytic dislocation caused by PARALYSIS of one group of muscles of an extremity. Treatment: If the joint doesn't RETURN to normal condition naturally the following treatments should be given. 1. Manipulation or repositioning 2. Immobilization 3. Medication 4. Rehabilitation |
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| 19339. |
Question : Comment on the cartwheel structure of centriole. |
Answer» SOLUTION :Centrosome is an ORGANELLE usually containing two cylindrical structures called centrioles. They are surrounded by amorphous pericentriolar materials. Both the centrioles in a centrosome lie perpendicular to each other in which each has an organisation like the CARTWHEEL Each centrioles is made up of nine evenly spaced peripheral fibrils. That is absent in centre. So this structure is called 9 + 0. Each of the fibre has 3 sub unit (Triplet) Centrioles forms the basal body of cilia and flagella. It forms spindle fibres in animals that GIVE rise to spindle apparatus during CELL division. |
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| 19340. |
Question : Write notes on storied cambium. |
| Answer» Solution :If the fusiformintialsare arranged in horizontaltiers , withthe ENDOF the CELLS of ONE tierappearingat approximatelythe samelevel , as seenin tangentiallongitudinalsection (TLS),itis called STORIED(stratofied )cambium . | |
| 19341. |
Question : Comment on the cartwheel structure of centriole. |
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Answer» Solution :Centrosome is an organelle usually containing two cylindrical structures called centrioles. They are surrounded by amorphous pericentriolar materials both the centriole in centrosome LIE perpendicular to each other in which each has an organisation like that of an 'cartwheel'. A centriole possess a whorl of 9 peripheral fibrils. There fibrils are absent in the centre, hence the ARRANGEMENT is called 9 + 0. Each fibrils is made of 3 sub-fibres. Therefore, called triplet fibril. The centrioles form the basal BODY of cilia and FLAGELLA. It also forms spindle fibres that gives RISE to spindle apparatus during cell division in animals. |
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| 19342. |
Question :Comment on seed dormancy and its reason. |
| Answer» Solution :The condition of a SEED when it FAILS to germinate even in suitable ENVIRONMENTAL condition is called seed dormancy. There are two main reasons for the development of dormancy: IMPOSED dormancy and innate dormancy. Imposed dormancy is due to low MOISTURE and low temperature. Innate dormancy is related to the properties of seed itself. | |
| 19343. |
Question : Comment on homeostasis |
| Answer» Solution :Homeostasis: Maintenance of CONSTANT INTERNAL environment of the body by the DIFFERENT COORDINATING SYSTEM | |
| 19344. |
Question : Comment on Corm with an example. |
| Answer» Solution :CORM is a SUCCULENT underground STEM with an erect growing tip. The corm is surrounded by scale leaves and exhibit NODES and internodes. e.g., AMORPHOPHALLUS, Gladiolus, Colacasia, Crocus, Colchicum. | |
| 19345. |
Question : Comment on Acini of thyroid gland |
| Answer» Solution :THYROID gland is a bilobed endocrine gland. Each lobe is MADE up of many lobules. The lobules consist of follicles called acini. Each acinus is lined with glandular, cuboidal or SQUAMOUS epithelial cells. The lumen of acinus is filled with COLLOID, a thick glycoprotein mixture consisting of thyroglobulin MOLECULES. | |
| 19346. |
Question : Commect on the statement- Telophase is reverse of prophase. |
Answer» SOLUTION :The FOLLOWING CONTRASTING DIFFERENCES reveals that telophase is REVERSE of prophase, in cell division 
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| 19347. |
Question : Combustion/respiration is a biochemical process. |
| Answer» SOLUTION :RESPIRATION | |
| 19348. |
Question : Comb - shaped vascular structure present in the eye of birds is |
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Answer» CARINA |
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| 19349. |
Question : Comb plates are present in …………………. . |
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Answer» ECHINODERMS |
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| 19350. |
Question : Columnar carneae/trabeculae and chordae tendinae are present in this part of the heart |
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Answer» ATRIA |
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