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.
| 14951. |
Question : Mention the ploidy of the following: gemma cell in Marchantia |
| Answer» SOLUTION :HAPLOID | |
| 14952. |
Question : Mention the pigments and storage food of Dinophyceae. |
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Answer» Solution :PIGMENTS of DINOPHYCEAE: Chlorophyll 'a'and'c' carotenoids . Storage food of Dinophyceae: STARCH and OIL. |
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| 14953. |
Question : Mention the optimum temperature for respiration? |
| Answer» Answer :B | |
| 14954. |
Question : Mention the number of primers required in each cycle of PCR. Writen the role of primers and DNA polymerase in PCR. Name the source organism of DNA polymerase used in PCR. |
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Answer» SOLUTION :Role of Primers and DNA Polymerase in PCR: (i) During PCR process in the second stage, each separted DNA stand is ALLOWED to hybridize with a primer. This is called renaturation or primer annealing. The primer template is used to synthesize DNA by using Taq-DNA polymerase. (II) Annealing is done by rapid colling of the mixture allowing the primers to bind to the sequences in each of the two strands flanking the TARGET DNA. (iii) During the third stage KNOWN as primer extension or synthesis, the Taq DNA polymerase extends each primer by copying the single stranded template. |
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| 14955. |
Question : Mention the number of plants and animals described by Linnaeus. |
| Answer» Solution :SPECIES Plantarum (1753)- 5900 PLANTS, Systema Naturae (1758)- 4326 animals. | |
| 14956. |
Question : Give an account on vascular bundle of dicot stem. |
| Answer» Solution :In dicot stem, the VASCULAR BUNDLE is conjoint, collateral, OPEN & endarch. | |
| 14957. |
Question : Mention the nature, location and role of permeases. |
| Answer» SOLUTION :PERMEASES are carrier protein MOLECULES in the OUTER layers of BIOMEMBRANES and serve to transport specific molecules into or out of the cell and cell organelles. | |
| 14958. |
Question : Mention the names of human body cells which are prone to the attack of Plasmodium. |
| Answer» SOLUTION :RED BLOOD CELLS, LIVER. | |
| 14959. |
Question : Mention the names of any two fossil gymnosperm. |
| Answer» SOLUTION :Medullosa, Lepidocarpon and Lepidodendron. | |
| 14960. |
Question :Mention the name of the plant in which pneumatophoresare found. |
| Answer» SOLUTION :RHIZOPHORA | |
| 14961. |
Question : Mention the name of the plant and its habitat in whichthe roots are negatively geotropic, provided with pneumatophores and show vivipary type of germination. |
| Answer» SOLUTION :RHIZOPHORA | |
| 14962. |
Question : Mention the name of the bacterium which is found in thesoil and takes part in nitrogen fixation. |
| Answer» SOLUTION :AZOTOBACTER | |
| 14963. |
Question : Mention the name of animal phylum based on this cell. |
| Answer» SOLUTION :Cnidaria/coelenterata | |
| 14964. |
Question : Mention the most significant role of phellogen. |
| Answer» SOLUTION :A secondary LATERAL MERISTEM, that produces theprotective tissue, the periderm. | |
| 14965. |
Question : Mention the most significant role of schwann cells. |
| Answer» SOLUTION :Produce MYELIN SHEATHS around PNS neurons. | |
| 14966. |
Question : Mention the most significant role of neutrophils. |
| Answer» Solution : Most ACTIVE type of white BLOOD corpuscules thatengulf BACTERIA. | |
| 14967. |
Question :Mention the most significant function/role of leghaemoglobin |
| Answer» SOLUTION :The nitrogenase complex is extremely SENSITIVE to inactivation by OXYGEN, so the enzyme MUST be protected from this reactive substance. The leghaemoglobin has a very high affinity for 02. so maintaining a low enough CONCENTRATION to protect the nitrogenase. | |
| 14968. |
Question : Mention the most significant function/role of guard cells in plants. |
| Answer» Solution :GUARD cells BRING about the opening and CLOSING of STOMA | |
| 14969. |
Question : Mention the most significant function/role of Azotobacter. |
| Answer» Solution :AZOTOBACTER, a free living AEROBIC bacterium occurring in SOIL helps in nitrogen fixation, and THUS increasing soil fertility | |
| 14970. |
Question : Mention the most significant function/role of fusiform initials. |
| Answer» SOLUTION :SECONDARY xylem and phloem are DERIVED fromthese initials. | |
| 14971. |
Question : Mention the most significant function of lenticels. |
| Answer» SOLUTION :HELPS in GASEOUS EXCHANGE. | |
| 14972. |
Question :Mention the most significant function of bundle sheath. |
| Answer» Solution :HELPS in the conduction of food material in dicots, chloroplast CONTAINING bundle sheath cells of some monocots (e.g., maize, sugarcane, etc.) participate inalternate pathway of PHOTOSYNTHESIS (`C_4` CYCLE). | |
| 14973. |
Question : Mention the methods to study the mineral requirements in plants. |
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Answer» Solution :Julius von sachs a prominent German botanist, DEMONSTRATED, for the first time, that plants could be grown to maturity in a defined nutrient solution. The techique of growing plants in a nutrient solution is known as hydroponics. Since, then a number of improvised METHODS have been employed to try and determine the mineral nutrients essential for plants. The essence of all these methods involves the culture of plants in a soils free, defined mineral solution. These methods required purified water and mineral nutrient salts. After a series of experiments in which the roots of the plants were immersed in nutrient solutions and wherein an elements are added/removed or given in varied concentration, a mineral solution suitable for the plant GROWTH was obtained. By this method essential elements were identified and their deficiency symptoms discovered. Hydroponics has been successfully employed as a technique for the commercial production of vegetables such as tomato, seedless cucumber and lettuce. It must be emphasised that the nutrient solutions must be ADEQUATELY AERATED to obtain the optimum growth. 
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| 14974. |
Question : Mention themineralsused in thebiosynthesisof Chlorophyll a. |
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| 14975. |
Question : Mention the merits and demerits of five kingdom classification systems. |
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Answer» Solution :Merits of five kingdom classification system : Earlier classification systems included bacteria, blue green algae, fungi, mosses, FERNS, gymnosperms and the angiosperms under .Plants The character that unified this whole kingdom was that all the organisms included had a cell wall in their cells. This placed together groups which widely differed in other characteristics. It brought together the prokaryotic bacteria and the blue green algae with other groups which were eukaryotic. It also GROUPED together the unicellular organisms and multicellular ones, example, chlamydomonas and spirogyra were placed together under algae. Euglena and other transition types which had been included both amongst plants and animals are given proper place under kingdom. Protista. Fungi have their own biochemical, physiological and structural organisation. In this system of classification fungi are separately placed. All prokaryotic organisms were grouped together under kingdom Monera and the unicellular eukaryotic organisms were placed in kingdom Protista. This system shows the gradual evolution of early organisms into plants and animals. The PLANT and animal kingdoms are more HOMOGENOUS than they were in the two kingdom system of classification. Demerits of five kingdom classification system : Kingdom Protista has brought together chlamydomonas, chlorella (earlier placed in Algae within plants and both having cell walls) with paramoecium and amoeba (which were earlier placed in the animal kingdom which lack cell wall). It has PUT together organisms which in earlier classifications were placed in different kingdoms. This happened because the criteria for classification changed. Yeasts are though unicellular eukaryotes do not belong to kingdom Protista. Euglena like organisms and slime moulds with flexible life style may need the creation of an intermediate kingdom of Protista. Viruses and viroids are not kept in proper place in this system. |
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| 14976. |
Question : Mention the major threats to biodiversity caused by human activities. Explain. |
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Answer» Solution :Even though India is one of the 17 identified mega diverse countries of the world, it FACES lots of threats to its biodiversity. (i) Apart from natural causes, human activities both directly and indirectly are today's main reason for habitat loss and biodiversity loss. (ii) Fragmentationand degradation DUE to agricultural practices, extraction(mining, fishing, logging, harvesting) and development (SETTLEMENTS, industrial and associated infrastructures) leads to habitat loss and fragmentation leads to formation of isolated, small and scattered populations and as endangered SPECIES. (iii) Some of the other threats include specialised diet, specialized habitat requirement, large size, small population size, limited geographic distribution and HIGH economic or commercial value. (iv) Large mammals by virtue of their size require larger areas to obtain the necessities of life- food, cover, mates than do smaller mammals. (v) Mammals have specialized dietary needs such as carnivores, frugivorses and the need to forage over much larger areas than general dietary herbivores and omnivores. (vi) Mammals alsohave low reproductive output other than small rodents. |
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| 14977. |
Question : Explain different levels of protein organization. |
| Answer» SOLUTION :ACCORDING to the mode of folding, FOUR levels of protein organisation have been recognised NAMELY primary, secondary, tertiary and quaternary. | |
| 14978. |
Question : Mention the largest plan and animal cells. |
| Answer» SOLUTION :ACETABULARIA - an ALGA, NERVE CELLS. | |
| 14979. |
Question : Mention the functions of the following structures in human body. Hypothalamus |
| Answer» SOLUTION :Hypothalamus- Neurohormone, Temp, HUNGER THIRST | |
| 14980. |
Question : Mention the functions of the following structures in human body. Axon |
| Answer» SOLUTION :AXON- TRANSMIT IMPULSE | |
| 14981. |
Question : Mention the functions of palisade & spongy parenchyma. |
| Answer» Solution :Palisade PARENCHYMA PERFORMS PHOTOSYNTHESIS SPONGY parenchyma facilitates gaseous exchange. | |
| 14982. |
Question : Mention the function of the following. Ureters in frog. |
| Answer» SOLUTION :to TRANSPORT URINE. | |
| 14983. |
Question : Mention the function performed by (i) Scale leaf of onion (ii) axillary bud of cucumber (iii) Tap root of beet. |
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Answer» Solution :(i) It PROVIDES protection and coverage. (ii) It GETS modified into tendril and provides ANCHOR (SUPPORT), (iii) It STORES food material. |
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| 14985. |
Question : Mention the function of the following :Malpighian tubules. |
| Answer» SOLUTION :EXCRETION | |
| 14986. |
Question : Mention the function of the following. Body wall in earthworm. |
| Answer» SOLUTION :RESPIRATION by SKIN. | |
| 14987. |
Question : Mention the function of the following. Malpighian tubules. |
| Answer» SOLUTION :to TRANSPORT EXCRETORY SUBSTANCES. | |
| 14988. |
Question : Mention the function of (i) Underground stem of ginger (ii) Axillary bud of citrus. |
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Answer» SOLUTION :(i) Storage of food and vegetative reproduction. (ii) It grows into THORN and PROVIDES protection against grazing by ANIMALS. |
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| 14989. |
Question : List out the four types multiprotein complexes. |
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Answer» Solution :(a) Complex - I - NADH DEHYDROGENASE (b) Complex - II - Succinic dehydrogenase (c ) Complex - III - CYTOCHROME `bc_1` complex (d) Complex - IV - Cytochrome c oxidase |
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| 14990. |
Question : Mention the factor which is responsible for the following Tetany |
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| 14991. |
Question : Mention the fate of pyruvic acid in a cell, under the given circumstances. |
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Answer» SOLUTION :A = Acetly Coenxyme A B - Ethyl alcohol C - LACTIC acid. |
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| 14992. |
Question : Mention the factor which is responsible for the following Osteoporosis |
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| 14993. |
Question : Mention the factor which is responsible for the following Gout |
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| 14994. |
Question : Mention the events of Photochemical phase of light reaction. |
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Answer» Solution :Photochemical Phase: Photolysis of water and OXYGEN EVOLUTION Electron transport and SYNTHESIS of ASSIMILATORY power. |
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| 14995. |
Question : Mention the eventsoccuringin photo-oxidation phaseof lightreaction. |
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Answer» ABSORPTION of LIGHTENERGY . Transfer of energyfromaccessorypigmentsto reactioncentre. ACTIVE of Chlorophyll 'a' molecule. |
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| 14996. |
Question : Mention the drawbacks of diffusion. |
| Answer» SOLUTION :In diffusion, there is a lack of control over the TRANSPORT of SELECTIVE molecules. There is possibility of harmful substances entering the CELL by a concentration GRADIENT. | |
| 14997. |
Question : Mention the different types of plasmolysis seen in plant cells. |
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Answer» SOLUTION :Types of plasmolysis SEEN in plant cells: 1. Incipient plasmolysis 2. EVIDENT plasmolysis 3. Final plasmolysis |
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| 14998. |
Question : Mentionthe differences betweenisobilateralleafand dorsiventralleaf. |
Answer» SOLUTION :
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| 14999. |
Question : Mention the difference between hypothyroidism and hyperthyroidism. |
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Answer» Solution :Hypothyroidism - Less secretion of thyroid shows cretinism in children and myxedema in adult. In cretinism physical mental growth is RETARDED, short limbs, big tongue, dry skin etc. is observed. Myxeema is more common in female than male. Abnormal metabolic rate, ROUGH skin etc are the symptosm. Hyperthyroidism - `T_(3)` and `T_(4)` level abnormally INCREASES. Grave.s disease and goitre with NODES occur. Exophthalmic goitre is observed in adult. TOXIC goitre (Pleumer.s disease) is due to excessive growth of thyroxion. Rate of metabolism increases. |
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| 15000. |
Question : Write the diagnostic features of Liliaceae. |
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Answer» Solution : 1. PERENNIAL herbs often with bulbous stem/ RHIZOMES 2. Radical leaves 3. Perianth showy 4. STAMENS six 5. Ovary superior |
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