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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.
| 2751. |
Question : What are the uses of beeswax? |
| Answer» SOLUTION :To PREPARE COSMETICS, polish and CARBON paper, ETC. | |
| 2752. |
Question :What are the types of tropical forest? |
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Answer» SOLUTION :Evergreen rain FOREST SEASONAL rain FORES Semi evergreen forest Dry DECIDUOUS forest |
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| 2753. |
Question : What are the typesof nerves according to their functions? |
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Answer» SOLUTION :According to their functions, the nerves are of three TYPES, viz. sensory nerves, motor nerves and mixed nerves. 1. Sensory nerves: Sensory nerves or afferent nerves. They conduct impulses from sense organs to CNS. 2. Motor nerves: Motor nerves or efferent nerves conduct nerve impulses from CNS to EFFECTORS or motor organs. 3. Mixed nerves : Mixed nerves have sensory as well as motor nerve FIBRES and cary nerve impulse both ways. |
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| 2754. |
Question : What are the two types of secretory tissues ? |
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| 2755. |
Question : What are the two types of vesicles associated with golgi body ? |
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| 2756. |
Question :What are the two types of synapsis ? |
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| 2757. |
Question : What are the two types of proteins present in plasma membrane? |
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| 2758. |
Question : What are the two types of hydrophily? Describe them briefly. |
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Answer» Solution :Hydrophily is of TWO types, viz., hypo-hydrophily and epihydrophily. 1. Hypohydrophily : (1) Pollination that takes place with the help of water below the surface of water in HYDROPHYTES bearing submerged female flowers is called hypohydrophily. (2) Plants showing hypohydrophily produce needle-like pollen grains. (3) These pollen grains LACK exine and possess the same specific gravity as that of water. The refo re they float below the surface of water. (4) When pollen grains come in contact with stigma, they coil around it and get deposited. (5) Hypohydrophily is seen in plants like Zostera and Ceratophyllum. 2. Epihydrophily: (1) Pollination that occurs on the surface of water is called epihydrophily. (2) Epihydrophily is seen in Vallisneria. (3) In Vallisneria, male flowers after getting detached from the plant float over the surface of water. (4) The female flowers in Vallisneria do not detach. They are RAISED on the long stalks over the surface of water. When pollen grains come in contact with the stigma, pollination is effected. |
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| 2759. |
Question : What are the two types of disorders of human where the karyotype is 47? |
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Answer» Solution :Down.s SYNDROME and Klinefelter.s syndrome. Detailed ANSWER: Down.s Syndrome(-) It is a genetic DISORDER caused by presence of an additional copy of chromosome number 21. Klinefelter.s Syndrome. It is a genetic disorder caused by an additional copy of X-chromosome RESULTING in karyotype of 47. |
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| 2761. |
Question : What are the two serious inherent problems of nuclear energy? |
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Answer» SOLUTION :1. Accindental gas leakege as in the THREE Mile Island and Chernobyl. 2. SAFE disposal of radioactive WASTE. |
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| 2762. |
Question : What are the two primary requirements of a parasite from its host? |
| Answer» SOLUTION :FOOD, SHELTER | |
| 2763. |
Question : What are the two major components of prokaryotic RNA polymerase? How do they act? |
| Answer» Solution :BACTERIAL (prokaryotic) RNA polymerase consists of two major components, the core enzyme and the sigma subunit. The core enzyme `(beta^(1),beta, and ALPHA)`is responsible for RNA synthesis whereas a sigma subunit is responsible for recognition of the PROMOTER. | |
| 2764. |
Question : What are the two main types of carotenoids ? Name the two photosynthetic pigments belonging to them. |
| Answer» SOLUTION :Carotenes and xanthophylls are the two main types of CAROTENOIDS. `beta` CAROTENE and lutein are two PIGMENTS belonging to them. | |
| 2765. |
Question : What are the two main components of cattle feed? |
| Answer» SOLUTION :ROUGHAGE and CONCENTRATE. | |
| 2766. |
Question : What are the two main components of cattle feed ? |
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| 2767. |
Question : What are the two key concepts of Darwinian theory of evolution ? |
| Answer» SOLUTION :BRANCHING DESCENT and NATURAL SELECTION. | |
| 2768. |
Question : What are the two forms of secondary protein? |
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| 2769. |
Question : What are the two corollaries related to immune system? |
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Answer» Solution :Memory based acquired immunity evolved in higher VERTEBRATES based on the ability to DIFFERENTIATE foreign organisms (pathogens) from self cells. While we still do not understand the basis of this, two corollaries of this ability have to be understood. Higher vertebrates can distinguish between foreign molecules as WELL as foreign organism. Most of the experimental immunology deals with this aspect. SOMETIMES due to GENETIC and other unknown reasons, the body attacks self cells. This results in damage of the body and is called as Auto Immune disease Rheumatoid arthritis which affects many people in our society is an auto-immune disease. |
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| 2770. |
Question : What are the three types of transport of molecules through plasma membrane? |
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| 2771. |
Question : What are the two basic categories of ecosystem? Give example. |
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Answer» Solution :(a) Terrestrial - FOREST, GRASSLAND, desert. (b) Aquatic - POND, lake, sea, OCEAN. |
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| 2772. |
Question : What are the three types of struggle for existence? |
| Answer» Solution :INTRASPECIFIC STRUGGLE, interspecific struggle and environmental struggle are the THREE types of struggle for EXISTENCE. | |
| 2773. |
Question : What are the three types of leucoplasts ? |
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| 2774. |
Question : What are the three types of AKI (Acute Renal Injury)? |
| Answer» SOLUTION :Prerenal, INTRINSIC and postrenal are the THREE TYPES of AKI. | |
| 2775. |
Question : Give any three difference between DNA and RNA. |
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| 2776. |
Question : What are the three steps involved in sexual reproduction in fungi? |
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| 2777. |
Question : What are the three major kinds of impurities in domestic wastewater ? |
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Answer» Solution :Suspended solids : e.g., Sand, silt and CLAY. Colloidal materials : e.g., FAECAL matter, bacteria, cloth and paper fibres. Dissolved materials : e.g., Nutrients (NITRATE, AMMONIA, PHOSPHATE, sodium, calcium). |
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| 2778. |
Question : What are thethree levels of biodiversity? |
| Answer» Solution :(a) GENETIC DIVERSITY (b) SPECIES Diversity (C) COMMUNITY | |
| 2779. |
Question : What are the three layers of heart wall? |
| Answer» Solution :Outer epicardium MADE of mesothelium, MIDDLE myocardium made of muscle fibres and INNER endocardium made of ENDOTHELIUM are the three layers of heart wall. | |
| 2781. |
Question : What are the three divisions of nervous system? What are their chief functions? |
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Answer» Solution :1. The three divisions of nervous system are central nervous system PERIPHERAL nervous system and asutonomous nervous system. 2. The central nervous system (CNS) consists of brain and spinal cord. The brain and spinal cord are the coordinastes for all nervous functions. 3. The peripheral nervous system is CONSTITUTED by several NERVES given by the central nervous system to all the body parts. All these nerves carry IMPULSES to the CNS and bring the responses from them. The are DIVIDED into cranial nerves and spinal nerves. 4. The autonomous nerveous system controls all the internal organs and is not under voluntary control. |
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| 2782. |
Question : What are the termination codon on mRNA? |
| Answer» SOLUTION :UAA, UAG and UGA are the TERMINATOR codons. | |
| 2783. |
Question : What does the term micropropagation refer to ? |
| Answer» Solution :The regeneration of a whole plant from SINGLE CELL , tissue or small of vegetative structures through tissue culture is called microprogation. It is one of the MODERN methods USED to propagate plants. | |
| 2784. |
Question : What are the symptoms of cancer? |
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Answer» Solution :Symptoms of cancer: 1. Presence of lump or TUMOUR. 2. White patches in the mouth. 3. Change in a wart or moleon the SKIN. 4. Swollen or ENLARGED lymph nodes. 5. Vertigo, headaches, or seizures if cancer affects the brain. 6. Coughing and shortness of breath if lungs are affected due to cancer. |
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| 2785. |
Question : What are the symbiotic bacteria in the root nodules of the liguminous plants ? |
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| 2786. |
Question : What are the suggested reasons for population explosion ? |
| Answer» SOLUTION :A rapid decline in the DEATH rate, MATERNAL mortality rate (MMR) and infant mortality rate (IMR). | |
| 2787. |
Question : Give the reasons for population rise. |
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Answer» Solution :(i) Decrease in mortality RATE in child and MOTHER. (ii) Increase in people of reproductive age group. (iii) Disease control (iv) Facilitative PUBLIC HEALTH care and PROPER medical facility. |
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| 2788. |
Question : Name the substrates used for production of industrial alcohol. |
| Answer» SOLUTION :Molasses , Corn Potatoes , WOOD WASTES. | |
| 2789. |
Question : What are the structures called that given an appearance as "beads-on-string" in the chromosomes when viewed under electron microscope? |
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Answer» Genes |
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| 2790. |
Question : (b)Enlist the strategies of eco system management? |
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Answer» Solution :Strategy of ecosystem management It is used to maintain biodiversity of ecosystems. It helps in indicating the damaged ecosystem (Some species indicate the health of the ecosystem: such species are called a flagship species). It is used to recognize the INEVITABILITY of ecosystem change and plan accordingly. It is one of the tools used for achieving sustainability of ecosystem through sustainable development programme (or projects). It is also helpful in identifying ecosystems which are in need of rehabilitation. It INVOLVES collaborative management with government AGENCIES, local population, communities and NGO.s. • It is used to BUILD the capacity of local institutions and community groups to ASSUME responsibility for long term implementation of ecosystem management activities even after the completion of the project. |
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| 2791. |
Question : What are the strategies to be implemented in India to attain total reproductive health? |
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Answer» Solution :• Creating awareness and providing medical assistance to build a healthy society. • Introducing sex education in schools to provide information about adolescence and adolescence related changes. • Educating couples and those in the marriageable AGE groups about the AVAILABLE birth control methods and family planning NORMS. Creating awareness about care for pregnant women, post-natal care of mother and child and the importance of BREAST feeding. • Encouraging and supporting governmental and non-governmental agencies to identify NEW methods and/or to improve upon the existing methods of birth control. |
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| 2792. |
Question : What are the steps taken by Government to overcome population explosion? |
| Answer» Solution :To overcome the problem of population EXPLOSION, birth control is the only AVAILABLE solution. People should be motivated to have smaller families by using VARIOUS contraceptive DEVICES. Advertisements by the Government in the media as well as posters/bills, etc., with a slogan Naam iruvar namakku iruvar (we two, ours two) and Naam iruvar namakku oruvar (we two, ours one) have also motivated to control population growth in Tamil Nadu. Statutory rising of marriageable age of the female to 18 years and that of males to 21 years and incentives given to couples with small families are the other measures taken to control population growth in our country. | |
| 2793. |
Question : What are the starting points of grazing food chain and detritus food chain? |
| Answer» SOLUTION :GRASS and DETRITUS RESPECTIVELY. | |
| 2794. |
Question : What are thespecificobjectiveof conservation of wildlife ? |
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Answer» Solution : Conservationof wildlifehas THREE specificobjectives : (i) To MAIN essential ecologicalprocessesand life - supportingsystems(air, water and soil). (ii)To preservethe diversityof speciesor therange ofgeneticmaterial of world's organisms. (iii) To ensureto continuous use ofspecies, in FACT ecosystems, that supportruralcommunitiesand urbanindustries. |
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| 2795. |
Question : What are the special adaptations of parasite for their success? |
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Answer» Solution :1. LOSS of UNNECESSARY sense organs 2. Presence of adhesive organs or SUCKERS to cling on to the host 3. High reprodutive capacity 4. Loss of digestive system. 5. Host specific |
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| 2796. |
Question : What are the specialised epithelial cells that form lining of the inner wall of the bowman's capsules? |
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| 2797. |
Question : What are the significances of transposons? |
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Answer» SOLUTION :(i) They contribute to MANY visible mutations and mutation rate in an organism. (ii) In evolution, they contribute to genetic diversity. (III) In genetic research transposons are valuable tools which are used as mutagens, as cloning tags, vehicles for INSERTING foreign DNA into MODEL organism. |
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| 2798. |
Question : What are the shortcomings of ecological pyramids in the study of ecosystem? |
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Answer» Solution :Ecological pyramid is a graphical presentation of ecological MAGNITUDE. This shows characteristic by number pyramid, group pyramid and energy pyramid. The prediction of simple food chain shows DECREASE of ecological pyramid. If we don.t consider food web in consideration we can not SHOW exact condition of trophic level of living organisms. In ecological pyramid no place is given to parasites however they are IMPORTANT components in ECOSYSTEM. |
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| 2800. |
Question : What are the roles of phosphorus in living organism? |
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Answer» Solution :Phosphorus in a mojor CONSTITUENT of biological memberane, nucleic acid and cellular energy TRANSFER system. MANY animals NEED large quantity of phosphorus to make shells, bones and teeth. |
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