Biotechnolgy and microbes in human welfare Quiz-15
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. Statins used as blood cholesterol lowering agents are extracted from
Solution
Statins are products of fermentation activity of yeast Monascus purpureus. Statins are used in lowering blood cholesterol. It competitively inhibits enzymes for cholesterol synthesis
Statins are products of fermentation activity of yeast Monascus purpureus. Statins are used in lowering blood cholesterol. It competitively inhibits enzymes for cholesterol synthesis
Q2. Most of the petrocrops belong to family
Solution
Most of the petrocrops belong to family-Euphorbiaceae, Apocyanaceae and Asclepiadaceae. The plants of these families convert a substancial amount of the photosynthetic products into latex.
Most of the petrocrops belong to family-Euphorbiaceae, Apocyanaceae and Asclepiadaceae. The plants of these families convert a substancial amount of the photosynthetic products into latex.
Q3. Biogas production from waste biomass with the help of methanogenic bacteria is
Solution
Biogas is a methane rich fuel gas produced by anaerobic break down of biomass with the help of methanogenic bacteria. It is a three step anaerobic digestion of animal and other organic wastes.
Biogas (methane + CO2)
Step-III ↑Methanogenic bacteria
Organic acid
Step-II ↑Fermentive microbes
Soluble compounds or monomers
Step-I ↑
Proteins, fats, cellulose, hemicelloulose, etc.
Biogas is a methane rich fuel gas produced by anaerobic break down of biomass with the help of methanogenic bacteria. It is a three step anaerobic digestion of animal and other organic wastes.
Biogas (methane + CO2)
Step-III ↑Methanogenic bacteria
Organic acid
Step-II ↑Fermentive microbes
Soluble compounds or monomers
Step-I ↑
Proteins, fats, cellulose, hemicelloulose, etc.
Q4. Asafoetida is obtained from
Solution
Asafoetida (Heeng) is obtained from the secretion of roots or rhizomes of Ferula asafoatida (family-Umbelliferae). It is a resin plant
Asafoetida (Heeng) is obtained from the secretion of roots or rhizomes of Ferula asafoatida (family-Umbelliferae). It is a resin plant
Q5. ‘Jaya’ and ‘Ratna’ developed for green revolution in India are the varieties of
Solution
‘Jaya’ and ‘Ratna’ are better-yielding semi-dwarf varieties of rice developed in India.
‘Jaya’ and ‘Ratna’ are better-yielding semi-dwarf varieties of rice developed in India.
Q6. The disease in poultry, which reduces immunity and spreads through contaminated food is
Solution
Aflatoxicosis is a fungal disease. In poultry, it reduces the immunity and spread through contaminated food.
Aflatoxicosis is a fungal disease. In poultry, it reduces the immunity and spread through contaminated food.
Q7. In plant A, 2n = 12 and in plant B, 2n = 16. Then the ploidy number of cross breeding plant is
Solution
In this case, the ploidy number of cross breeding plant will be 14.
In this case, the ploidy number of cross breeding plant will be 14.
Q8. A collection of plants and seeds having diverse alleles of all the genes of a crop is called
Solution
A germplasm is a collection of genetic resources for an organism. For plants, the germplasm may be stored as a seed collection. It includes, diverse alleles of all the genes of an organism.
A germplasm is a collection of genetic resources for an organism. For plants, the germplasm may be stored as a seed collection. It includes, diverse alleles of all the genes of an organism.
Q9. Mycorrhiza does not help the host plant in
Solution
Mycorrhiza shows the following benefits
(i) resistance to root borne pathogens
(ii) tolerance to salinity and drought
(iii) overall increase in plant growth and development
Mycorrhiza shows the following benefits
(i) resistance to root borne pathogens
(ii) tolerance to salinity and drought
(iii) overall increase in plant growth and development
Q10. Castor oil is yielding from which of the following?
Solution
Castor oil is obtained from Ricinus communis (Euphorbiaceae).
Castor oil is obtained from Ricinus communis (Euphorbiaceae).
