Biotechnology and microbes in human welfare Quiz-10

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NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions. About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus. Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced..
are very important in achieving your success in CLAT, DULLB and Other Law Exams..

Q1.  Clove oil is obtained from
  •  Wood of Santalum
  •   Leaves of Syzygium aromaticum
  •  Flowers buds of Syzygium aromaticum
  •  Rhizome of Vatevaria
(c) Clove (Syzygium aromaticum) belongs to family-Myrtaceae. Unopended flower buds of this plant yield an oil which is used for perfumes and medicines.

Q2. The symbiotic association of fungi with the roots of higher plants is called
  •  Eubacteria
  •  Actinomycetes
  •  Mycorrhiza
  •  Lichen
c) A mycorrhiza is a symbiotic association between a fungus and the roots of a vascular plant. They are an important component of soil life and soil chemistry

Q3.  Quinine used for treatment of malarial fever is extracted from
  •  Atropa belladonna
  •  Cinchona officinalis
  •  Aconitum napellus
  •  Rauwolffia serpentina
(b) Quinine is obtained from the bark of Cinchona officinalis (family-Rubiaceae). The bark of this plant contains about 30 alkaloids including quinine, cinchonine, quinidine and cinchonidine.

Q4. Biogas produced by fermentation of manure, sewage, cattle dung, etc., predominantly comprises
  •  Methane, nitrogen and hydrogen
  •  Methane and carbon dioxide
  •  Methane and carbon monoxide
  •  Methane and nitric oxide
b) Biogas produced by fermentation of manure, sewage, cattle dung, etc., predominantly comprises methane and carbon dioxide. The major component of biogas is methane (about 50-68%). The other gasess are carbon dioxide (25-35%), hydrogen (1-5%), nitrogen (2-7%) and rarely hydrogen sulphide
Q5. Which one of the following is not used in organic farming?
  •  Snail
  •  Glomus
  •  Earthworms
  •  Oscillatoria
a) Glomus (fungi), earthworm, Oscillatoria are used in organic farming.
(i) Glomus absorb phosphorus from soil and passes it to the plant
(ii) Vermiculture and its application are now recognized as one of the best ways to restore soil health. Earthworms are now synonymus with organic farming.
(iii) Oscillatoria fix atmospheric nitrogen and increase the organic matter of the soil

Q6.  The technology of biogas production from cow dung was developed in India largly by the efforts of
  •   Oil and Natural Gas Commission
  •  Gas Authority of India
  •   Indian Agricultural Research Institute and Khadi and Village Industries Commission
  •  Indian Oil Corporation
c) Biogas or gobar gas generation has been taken up in India on a large scale. The technology was developed by the collaboration of Khadi and Village Industries Commission (KVIC) and Indian Agricultural Research Institute (IARI)

Q7.A good example for organic fertilizer, which improves phosphorus uptake, is
  • A M fungi
  •   Rhizobium
  •  Azosprillum
  •  None of these
a) In endophytic mycorrhiza, fungal hyphae present inside or between the cells of cortex, act as biofertilizer. In many grasses and some other crops, the fungal hyphae penetrate to the cortical cells.
Q8. Wonder wheat is new wheat variety developed by
  • Mexico’s international Wheat and Maize Improvement center
  •   Indian National Botanical Research Institute
  •  Australian Crop Improvement Center
  •  African Crop Improvement Center
a) Wonder wheat is a new wheat variety with a yield of 18 tonnes per hectare. It has some 200 grains per stalk and has developed by Mexico’s international wheat and maize improvement centre.

Q9.Caffeine, cocaine and amphetamine are
  •  Hallucinogens
  •  Sedative
  •  Tranquillizer
  •  Stimulant
(d) Caffeine, cocaine and amphetamine are stimulants.

Q10.  Pomato is
  •  Natural mutant
  •  Somatic hybrid
  •  Androgenic hybrid
  •  Somaclonal variant
b) Pomato is a somatic hybrid of potato and tomato.

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Biotechnology and microbes in human welfare Quiz-10
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