Question:
Assertion (A): The exact chemical composition of complex microbial growth media is known.
Reason (R): Complex nutrient media is used when specific growth requirement of a microorganism is unknown.
Assertion (A): The exact chemical composition of complex microbial growth media is known.
Reason (R): Complex nutrient media is used when specific growth requirement of a microorganism is unknown.
Reason (R): Complex nutrient media is used when specific growth requirement of a microorganism is unknown.
Show Hint
It is important to know the differences between defined and undefined media and their applications.
Updated On: Feb 19, 2025
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Assertion (A): This assertion is incorrect. The exact chemical composition of complex microbial growth media is usually not fully known or defined. These media usually have complex mixtures of ingredients like extracts of yeast, meat, blood, peptones etc, and their composition is not clear.
Reason (R): The reason is correct. Complex media are generally used when the specific growth requirements of the microorganism are unknown, as the complex mixtures in them provide a range of essential nutrients which allow them to grow.
Explanation: Therefore, given that the assertion is incorrect, and the reason is correct, (D) is the correct option.
Was this answer helpful?
0
0
Top Questions on Microbial Biotechnology
- An improved strain of Penicillium, capable of producing higher concentration of antibiotic penicillin is:
- CBSE CLASS XII - 2024
- Biotechnology
- Microbial Biotechnology
- Discuss any three ways that can be employed to measure microbial cell growth.
- CBSE CLASS XII - 2024
- Biotechnology
- Microbial Biotechnology
- Explain how the sterilization of the growth media is achieved in the laboratory.
- CBSE CLASS XII - 2024
- Biotechnology
- Microbial Biotechnology
- Curd is advised to be administered with antibiotics. Why?
- CBSE CLASS XII - 2024
- Biotechnology
- Microbial Biotechnology
- Which component in the given list is acting as the carbon source?
- CBSE CLASS XII - 2024
- Biotechnology
- Microbial Biotechnology
View More Questions
Questions Asked in CBSE CLASS XII exam
- Which fruit has the maximum vitamin A content?
- CBSE CLASS XII - 2024
- Nutrition
- Write the reactions of glucose with
(a) HI
(b)\((CH_3CO_2)O\)- CBSE CLASS XII - 2024
- Biomolecules
- Ankur Sachdeva did his MBA from ITB University. He decided to apply his knowledge of scientific management in the fast food restaurant chain 'Coffee Bean' set up by him. This restaurant was providing burgers, fries, shakes etc, as a part of its menu. Nowadays people are quality conscious, so he was using standardised raw materials, processes, methods, working conditions, machinery etc. The objective was to establish standards of excellence. By doing this he was not only able to reduce the cost but was also able to provide new varieties of burgers, fries and shakes leading to increased turnover. Ankur Sachdeva also believed that there was only one best method to maximise efficiency. As a result he developed best way of grilling burgers, cooking fries and preparing shakes. His main objective was to maximise the satisfaction of customers, which he was able to achieve. Not only to learn the best way of doing a job, but to perform their tasks efficiently, 'Coffee Bean' regularly invests in training and development programmes to equip employees with the necessary skill and knowledge. 'Coffee Bean' believed that efficient employees will produce more and earn more. This will ensure their greatest efficiency and prosperity for both company and workers. The above case highlights the use of Scientific principles and techniques by 'Coffee Bean'. Explain any one such principle and two techniques.
- CBSE CLASS XII - 2024
- Marketing Management
- Preeti started her own cooking channel on 'Youtube Mood Art'. As her subscribers increased, she was not in a position to manage everything on her own. She hired Rahul and Riya to help her with filming editing, lighting and content research. She granted authority to them to operate within prescribed limits. She was thus, able to use her time on high priority activities like developing new recipes and content development etc. As a result, Rahul and Riya were given opportunities to develop and exercise initiative. Preeti was now able to focus on objectives and meet the target of achieving a subscriber base of one million in six months.
(a) Identify the concept of management used by Preeti.
(b) Explain any five points of importance of the concept identified in .- CBSE CLASS XII - 2024
- Organising
- Explain the following types of plans:
(b) Strategy
(ii) Method
(iii) Budget- CBSE CLASS XII - 2024
- Principles of Management
View More Questions