MPPSC MAINS 2022 Paper-III

Points to Remember: Basic probability concepts: Probability is the likelihood of an event occurring. It’s calculated as the ratio of favorable outcomes to the total number of possible outcomes. Sample space of a die: A standard six-sided die has a sample space of {1, 2, 3, 4, 5, 6}. Even numbers: Even numbers are integers … Read more

Points to Remember: The “S” in 70S and 80S ribosomes refers to Svedberg units. Svedberg units are a measure of sedimentation rate during ultracentrifugation. The value is not additive; the 70S ribosome is not simply the sum of its 50S and 30S subunits. Introduction: Ribosomes are complex molecular machines essential for protein synthesis in all … Read more

Points to Remember: Definition and characteristics of a hybrid computer. Advantages and disadvantages of hybrid computers. Applications of hybrid computers. Comparison with analog and digital computers. Future prospects and limitations. Introduction: A hybrid computer is a system that combines the strengths of both analog and digital computers. Unlike purely analog or digital systems, hybrid computers … Read more

Points to Remember: The Internet is a global network of interconnected computer networks. The World Wide Web is a system of interlinked hypertext documents accessed via the Internet. The Web is part of the Internet, not the whole thing. Introduction: The terms “Internet” and “World Wide Web” (WWW) are often used interchangeably, leading to confusion. … Read more

Points to Remember: Bacterial cell walls are crucial for bacterial survival and shape. Peptidoglycan is the primary component of most bacterial cell walls. Gram-positive and Gram-negative bacteria differ in their cell wall structure and peptidoglycan content. Introduction: Bacterial cell walls are rigid structures that surround the cytoplasmic membrane of most bacteria. They provide structural support, … Read more

Points to Remember: Definition of fermentation Types of fermentation Applications of fermentation Importance of fermentation in various industries and daily life Introduction: Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. It’s an ancient process, utilized for millennia in food production and preservation. While often associated with … Read more

Points to Remember: Electron shells and subshells Quantum numbers and their significance Maximum electron capacity of shells Introduction: The question pertains to the maximum number of electrons that can occupy the M-shell (or third principal energy level) of an atom. Understanding this requires knowledge of atomic structure and the principles governing electron configuration. Electrons in … Read more

Points to Remember: Chemical changes involve the formation of new substances with different properties. These changes are often irreversible. Evidence of a chemical change includes a change in color, temperature, odor, or the formation of a gas or precipitate. Introduction: A chemical change, also known as a chemical reaction, is a process that leads to … Read more

Points to Remember: Morphine’s chemical structure and origin. Its classification as an opioid analgesic. The distinction between opiate and opioid. Introduction: Morphine is a powerful opioid analgesic, meaning it relieves pain. The term “opiate” is often used interchangeably with “opioid,” leading to confusion. However, there’s a crucial distinction. Opiates are naturally occurring alkaloids derived directly … Read more

Points to Remember: The fundamental units of energy and work. The relationship between energy and work. The concept of the Joule. Introduction: The statement “Energy has the same unit as that of work” is a fundamental concept in physics. Both energy and work represent the capacity to cause change or do work, respectively. While they … Read more