Biotechnolgy and microbes in human welfare Quiz-17
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 of the following plant yields oil and fibre both?
Solution
Coconut (Cocos nucifera) is the plant which yields both oil as well as fibres (coir).
Coconut (Cocos nucifera) is the plant which yields both oil as well as fibres (coir).
Q2. Potato is a native of
Solution
Potato is a native of Peru Pineapple, Rubber, groundnut – Brazil Maize, cotton - Mexico
Potato is a native of Peru Pineapple, Rubber, groundnut – Brazil Maize, cotton - Mexico
Q3. By which of the following methods, new and better varieties of plants can be formed?
Solution
Hybridization followed by selection
Hybridization followed by selection
Q4. Which of the following are the part or example of symbiotic mutualistic association?
I. Yeast
II. Rhizobium
III. Mycorrhiza
IV. Oscillatoria
Solution
Mycorrhiza and Rhizobium both are shows symbiotic association. In the Mycorrhizal association fungi surround the root hairs of plants. This increases the surface area of the root hairs and allows it to better absorb nutrients in the soil. It also provides the plant roots with protection. In exchange the fungi attached to the root hairs gets glucose from the plant
The other type of root symbiosis is Rhizobium symbiosis. This type of symbiosis occurs in legumes. Here, nodules containing the bacteria Rhizobium attach themselves to root hairs of the legume. The Rhizobium absorbs and converts unusable nitrogen in the soil, to biologically usable nitrogen, which is then used by the legume. The root of the legume supplies the Rhizobium with glucose obtained photosynthetic parts of the plant
Mycorrhiza and Rhizobium both are shows symbiotic association. In the Mycorrhizal association fungi surround the root hairs of plants. This increases the surface area of the root hairs and allows it to better absorb nutrients in the soil. It also provides the plant roots with protection. In exchange the fungi attached to the root hairs gets glucose from the plant
The other type of root symbiosis is Rhizobium symbiosis. This type of symbiosis occurs in legumes. Here, nodules containing the bacteria Rhizobium attach themselves to root hairs of the legume. The Rhizobium absorbs and converts unusable nitrogen in the soil, to biologically usable nitrogen, which is then used by the legume. The root of the legume supplies the Rhizobium with glucose obtained photosynthetic parts of the plant
Q5. Atropa belladonna yields medicine used for
Solution
Atropa belladona (Solanaceae) is the source of drug atropine. Atropine is an alkaloid obtained from leaves and is used in eye testing by dilating pupil of eye.
Atropa belladona (Solanaceae) is the source of drug atropine. Atropine is an alkaloid obtained from leaves and is used in eye testing by dilating pupil of eye.
Q6. Triticum aestivum, the common bread wheat is
Solution
Triticum aestivum is hexaploid with 2n = 42.
Triticum aestivum is hexaploid with 2n = 42.
Q7. Study the following flow chart of biogas production and select the correct option for A,B and C
Solution
Q8. Which of the following is a dual purpose breed?
Solution
Deoni is a dual purpose breed usually females are good milk yielder and the males serve in ploughing.
Deoni is a dual purpose breed usually females are good milk yielder and the males serve in ploughing.
Q9. Which one of the following is a viral disease of poultry?
Solution
New castle disease or Ranikhet disease is a very dangerous viral disease of poultry which is caused by a filter passing virus.
New castle disease or Ranikhet disease is a very dangerous viral disease of poultry which is caused by a filter passing virus.
Q10. Chicken pox, small pox, etc., can be cure by
Solution
The roots of shatavari (Asparagus ramosus) are used extermally to cure chicken pox, small pox, measles etc.
The roots of shatavari (Asparagus ramosus) are used extermally to cure chicken pox, small pox, measles etc.
