Biotechnolgy and microbes in human welfare Quiz-1
Dear Readers,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..
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Q1. Which is produced during anaerobic fermentation of agricultural wastes?
Solution
d) Biogas or gobar gas is produced during anaerobic fermentation of agricultural wastes. Biogas is used as fuel for heating and cooking, lighting power for irrigation and other purposes as an alternative of fire wood, kerosene, dung cakes or even electricity and LPG. It is considered as ecofriendly and pollution free source of energy
d) Biogas or gobar gas is produced during anaerobic fermentation of agricultural wastes. Biogas is used as fuel for heating and cooking, lighting power for irrigation and other purposes as an alternative of fire wood, kerosene, dung cakes or even electricity and LPG. It is considered as ecofriendly and pollution free source of energy
Q2.Which one of the following pesticides is banned now-a-days?
Solution
a) DDT is an organochlorine. Now-a-days DDT is banned because it has an affinity for fatty tissues of animals, which lead to biomagnification. Besides, with the repeated use of such pesticides, a kind of accelerated evolution occurs to produce resistant population of pests.
a) DDT is an organochlorine. Now-a-days DDT is banned because it has an affinity for fatty tissues of animals, which lead to biomagnification. Besides, with the repeated use of such pesticides, a kind of accelerated evolution occurs to produce resistant population of pests.
Q3. Pencils are prepared from the wood of
Solution
a) Juniperus virginiana wood is used for making pencils
a) Juniperus virginiana wood is used for making pencils
Q4. Isinglass is a product obtained from air bladder of
Solution
No solution avaialable
No solution avaialable
Q5.Which role is played by Lactobacillus in our stomach?
Solution
(c) Lactobacillus bacteria inhibit the growth of hostile or illness causing bacteria inside the intestinal tract and promote beneficial bacteria needed for digestion
(c) Lactobacillus bacteria inhibit the growth of hostile or illness causing bacteria inside the intestinal tract and promote beneficial bacteria needed for digestion
Q6. Leaves of which plant can sharpen the memory?
Solution
(d) Leaves of Ocimum (tulsi) can sharpen the memory and are also used as nerve tonic.
(d) Leaves of Ocimum (tulsi) can sharpen the memory and are also used as nerve tonic.
Q7.Which of the following is an endogenic species of earthworm?
Solution
a) Endogenic species live in deep soil up to 10-30 cm and feed on humic matters and mineral matters, e.g., Octohaetonal serrata. Lampito mauriti is epigenic variety.
a) Endogenic species live in deep soil up to 10-30 cm and feed on humic matters and mineral matters, e.g., Octohaetonal serrata. Lampito mauriti is epigenic variety.
Q8.International Rice Research Institute (IRRI) is located at
Solution
b) International Rice Research Institute is situated at Manila (Philippines) and Indian Rice Research institute is situated at Cuttack.
b) International Rice Research Institute is situated at Manila (Philippines) and Indian Rice Research institute is situated at Cuttack.
Q9.Primary treatment is the
Solution
(a)Primary treatment is the physical removal of large and small particles from sewage
(a)Primary treatment is the physical removal of large and small particles from sewage
Q10.
Consider the following statements about methanogens bacteria
I. Methanogen bacteria are commonly found in the anaerobic sludge formed during sewage treatment II. These bacteria are also occur in rumen of the cattle where they act upon cellulosic material to breakdown cellulose
III. They play a very important role in the nutrition of cattle by digesting cellulosic material Which of the statement given above are correct?
I. Methanogen bacteria are commonly found in the anaerobic sludge formed during sewage treatment II. These bacteria are also occur in rumen of the cattle where they act upon cellulosic material to breakdown cellulose
III. They play a very important role in the nutrition of cattle by digesting cellulosic material Which of the statement given above are correct?
Solution
a) Methanogens, particularly Methanobacterium, anaerobically breakdown cellulosic material to produce CO2 and H2 in anaerobic sludge in sewage treatment plants and rumen of cattle, thus providing nutrition to cattle
a) Methanogens, particularly Methanobacterium, anaerobically breakdown cellulosic material to produce CO2 and H2 in anaerobic sludge in sewage treatment plants and rumen of cattle, thus providing nutrition to cattle
