10th
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- Which changes occur in persons continuously using internet and mobile phones? Time is very precious thing in human life, we should spend our time in such things that it will add good changes in social health, physical... 1
- Which factors affect the social health? The ability of a person to establish relationship with other persons is called social health Factors affecting the social health : (1) Satis... 1
- Fill in the blanks with appropriate word. (i) Laughter club is a remedy to drive away stress. (ii) Alcohol consumption mainly affects nervous system. (iii) The IT act 2000 is to curb... 1
- Write a comparative note on usefulness and harmfulness of biotechnology. Biotechnology has revolutionised the field of science and technology. It has provided us with solutions to our problems which would not have... 1
- Identify and complete the following correlations 1. Insulin: Diabetes :: Interleukin: Cancer 2. Interferon: Viral infection:: Erythropoietin: Anemia 3. Somatostatin: Dwarfness :: Factor VII... 1
- Write the correct answer in blank circles. Uses of stem cells Cell therapy Organ Transplantation Production of Blood cell 2
- Complete the following chart. Merits of Biotechnology Animal Husbandry Harmones and medicines Usefull in Bioremediation Production of edible vaccines DNA fingerprint Producing GM crops Helpfull... 1
- Explain the meaning of vaccination. Vaccine is the 'antigen' It is given to person or even to animals for acquiring immunity against particular pathogens or diseases. Our body... 1
- Explain the importance of fruit processing in human life? Fruits are called perishable products which means that they cannot be stored for long durations. Hence for storage and usage for a long term... 1
- Why some of the organs in human body are most valuable? We know that the human body is a system which is comprised of various types of organs. The health of body can be in best if all the vital or... 1
- Which precautions will you take during spraying of pesticides? Pesticides are chemicals which are used on plants for protecting them against pest infection. They contain toxic chemicals which are harmful... 1
- Which products produced through biotechnology do you use in your daily life? There are various products which we use in our daily life that are produced by biotechnological processes. We are making curd and buttermilk... 1
- Write short notes on b. Importance of medicinal plants. Medicines made from harmful chemicals have side effects and are not safe to be used unless there is medical supervision. Therefore, world-wi... 1
- Write short notes. a. Biotechnology: Professional uses. Biotechnology can be used in the many professional fields, like. crop biotechnology, animal husbandry, human health, environmental Pollution... 1
- Gene from Bacillus thuringiensis is introduced into soyabean. Rewrite the following wrong statements after corrections (ii) Gene from Bacillus thuringiensis is introduced into cotton plants. 1
- Changes in genes of the cells are brought about in non-genetic technique. Rewrite the following wrong statements after corrections. (i) Changes in genes of the cells are brought about in genetic technique. Or Non-genetic technology involves use of either cell or tissue 1
- Match the pairs. a. Interferon 1. Diabetes b. Factor 2. Dwarfness c. Somatostatin 3. Viral infection d. Interleukin 4. Cancer 5. Hemophilia a. Interferon Viral infection b. Factor Hemophilia c. Somatostatin Dwarfness d. Interleukin Cancer 1
- Fill in the blanks and complete the statements. a. Methods like artificial insemination and embryo transplant are mainly used for Animal Husbandry. b. Stem cell reaserch is the revolutiona... 1
- How does the bread become spongy? breads are produced from flour of cereals. Dough is formed by mixing of baker’s yeast – Saccharomyces cerevisiae, water, salt and other nece... 1
- Which fuels are obtained from biomass? fuels obtained from biomass is biogas and biodiesel. The biogas is obtained from dung of cattle. The fermentation of cattle dung gives rise... 1
- Which plants are cultivated to obtain the fuel? most popularly used biofuel plants are corn, sugarcane, palm oil, jatropha, soyabean, canola, cottonseed, sunflower and wheat. 1
- What are the benefits of mixing ethanol with petrol and diesel? Ethanol, an alcohol is a clean (smokeless) fuel obtained during fermentation of molasses by the yeast- Saccharomyces.it is easily available... 2
- What is role of microbes in compost production? Composting is a type of waste which is biodegradable so that it can be broken down into different substances. So here microbes carry out the... 2
- Complete the following conceptual picture related to environmental management. Oil spill Microbes Sewage Treatment , Land filling ,Inoculents , Biofuels , Biogas , oil spill 1