Cell Cultures and Characteristics -Section 2

Cell Cultures and Characteristics

Cell Cultures and Characteristics Cell culture is the process by which cells are grown under controlled conditions, generally outside their natural environment. After the cells of interest have been isolated from living tissue, they can subsequently be maintained under carefully controlled conditions. Cell Cultures and Characteristics conditions vary for each type, but generally consist of a suitable vessel with a substrate or medium that supplies the essential nutrients (amino acids, carbohydrates, vitamins, minerals), growth factors, hormones, and gases (CO2O2), and regulates the physio-chemical environment (pH buffer,osmotic pressure, temperature). Most cells require a surface or an artificial substrate (adherent or monolayer culture) whereas others can be grown free floating in culture medium (suspension culture). The lifespan of most cells is genetically determined, but some cell culturing cells have been “transformed” into immortal cells which will reproduce indefinitely if the optimal conditions are provided.

Cell Cultures and Characteristics -Section 2

Cell Cultures and functions Section 1

Cell Cultures and functions Section 1

Cell biology (also called cytology, from the Greek κύτος, kytos, “vessel”) is a branch of biology that studies the structure and function of the cell, which is the basic unit of life. Cell biology is concerned with the physiological properties, metabolic processes, signaling pathwayslife cyclechemical composition and interactions of the cell with their environment. This is done both on a microscopic and molecular level as it encompasses prokaryotic cells and eukaryotic cells. Knowing the components of cells and how cells work is fundamental to all biological sciences; it is also essential for research in bio-medical fields such as cancer, and other diseases. Research in cell biology is closely related to geneticsbiochemistrymolecular biologyimmunology and cytochemistry.[

Cell Cultures and functions- Section 1

a small room in which a prisoner is locked up or in which a monk or nun sleeps.
"the authorities locked all remaining inmates in their cells"

INDIAN Political QUIZ

The politics of India takes place within the framework of the country’s constitution.INDIAN Political QUIZ India is a federal parliamentary democratic republic in which the President of India is the head of state and the Prime Minister of India is the head of government. India follows the dual polity system, i.e. a double government (federal in nature) that consists of the central authority at the centre and states at the periphery. The constitution defines the organisational powers and limitations of both central and state governments, and it is well recognised, rigid and considered supreme; i.e. the laws of the nation must conform to it.INDIAN Political QUIZ

There is a provision for a bicameral legislature consisting of an upper house, the Rajya Sabha (Council of States), which represents the states of the Indian federation, and a lower house, the Lok Sabha (House of the People), which represents the people of India as a whole. The Indian constitution provides for an independent judiciary, which is headed by the Supreme Court. The court’s mandate is to protect the constitution, to settle disputes between the central government and the states, to settle inter-state disputes, to nullify any central or state laws that go against the constitution and to protect the fundamental rights of citizens, issuing writs for their enforcement in cases of violation

Governments are formed through elections held every five years (unless otherwise specified), by parties that secure a majority of members in their respective lower houses (Lok Sabha in the central government and Vidhan Sabha in states). India had its first general election in 1951, which was won by the Indian National Congress, a political party that went on to dominate subsequent elections until 1977, when a non-Congress government was formed for the first time in independent India. The 1990s saw the end of single-party domination and the rise of coalition governments. The elections for the 16th Lok Sabha, held from April 2014 to May 2014, once again brought back single-party rule in the country, with the Bharatiya Janata Party being able to claim a majority in the Lok Sabha.[2]

In recent decades, Indian politics has become a dynastic affair.[3] Possible reasons for this could be the absence of party organisations, independent civil society associations that mobilise support for the parties and centralised financing of elections

Political GK QUIZ

Delhi Congress leaders demand replacement of AICC chief PC Chako over heavy losses in Lok Sabha elections. ... Prakash Ambedkar-led VBA split Opposition votes in Lok Sabha election, but vote share gives party hope ahead of Maharashtra Assembly polls. ... Bengal violence: Mamata Banerjee

INVENTION QUIZ SET 02

INVENTION QUIZ SET

An invention is a unique or novel device, method, composition or process. The invention process is a process within an overall engineering and product development process. It may be an improvement upon a machine or product or a new process for creating an object or a result. An invention that achieves a completely unique function or result may be a radical breakthrough. Such works are novel and not obvious to others skilled in the same field. An inventor may be taking a big step in success or failure.

Some inventions can be patented. A patent legally protects the intellectual property rights of the inventor and legally recognizes that a claimed invention is actually an invention. The rules and requirements for patenting an invention vary from country to country and the process of obtaining a patent is often expensive.

Another meaning of invention is cultural invention, which is an innovative set of useful social behaviours adopted by people and passed on to others. The Institute for Social Inventions collected many such ideas in magazines and books
Invention is also an important component of artistic and design creativity. Inventions often extend the boundaries of human knowledge, experience or capability.

invention QUIZ SET 02

An invention is a machine, device, or system that has been invented by someone. ... Invention is the ability to invent things or to have clever and original ideas.

invention QUIZ SET 01

invention QUIZ SET

Inventions SET 01

An invention is a unique or novel device, method, composition or process. The invention process is a process within an overall engineering and product development process. ... The rules and requirements for patenting an invention vary from country to country and the process of obtaining a patent is often expensive.

sports SET 01

sports SET 01

SPORTS

An activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment. 'team sports such as soccer and rugby' mass noun 'I used to play a lot of sport' 'a sports centre' 

sports quizzes

sports quizzes

sports quizzesSport includes all forms of competitive physical activity or games which, through casual or organised participation, aim to use, maintain or improve physical ability and skills while providing enjoyment to participants, and in some cases, entertainment for spectators.Hundreds of sports exist, from those between single contestants, through to those with hundreds of simultaneous participants, either in teams or competing as individuals. In certain sports such as racing, many contestants may compete, simultaneously or consecutively, with one winner; in others, the contest (a match) is between two sides, each attempting to exceed the other. Some sports allow a “tie” or “draw”, in which there is no single winner; others provide tie-breaking methods to ensure one winner and one loser. A number of contests may be arranged in a tournament producing a champion. sports quizzes Many sports leagues make an annual champion by arranging games in a regular sports season, followed in some cases by playoffs.

Sport is generally recognised as system of activities which are based in physical athleticism or physical dexterity, with the largest major competitions such as the Olympic Games admitting only sports meeting this definition, and other organisations such as the Council of Europe using definitions precluding activities without a physical element from classification as sports.[However, a number of competitive, but non-physical, activities claim recognition as mind sports. The International Olympic Committee (through ARISF) recognises both chess and bridge as bona fide sports, and SportAccord, the international sports federation association, recognises five non-physical sports: bridge, chess, draughts (checkers), Go and xiangqi, and limits the number of mind games which can be admitted as sports.

According to A.T. Kearney, a consultancy, the global sporting industry is worth up to $620 billion as of 2013.[The world’s most accessible and practised sport is running, while association football is its most popular spectator sport.

SPORTS

an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment.

sports quiz

sports quiz


Artifacts and structures suggest sport in China as early as 2000 BC.[Gymnastics appears to have been popular in China’s ancient pastsports quiz. Monuments to the Pharaohs indicate that a number of sports, including swimming and fishing, were well-developed and regulated several thousands of years ago in ancient Egypt.[ Other Egyptian sports included javelin throwing, high jump, and wrestling. Ancient Persian sports such as the traditional Iranian martial art of Zourkhaneh had a close connection to warfare skills. Among other sports that originated in ancient Persia are polo and jousting. The competition element of sport, along with the aesthetic appeal of some sports, result in the popularity of people attending to watch sport being played. This has led to the specific phenomenon of spectator sport.

Both amateur and professional sports attract spectators, both in person at the sport venue, and through broadcast media including radiotelevision and internetbroadcast. sports quiz Both attendance in person and viewing remotely can incur a sometimes substantial charge, such as an entrance ticket, or pay-per-view television broadcast.

It is common for popular sports to attract large broadcast audiences, leading to rival broadcasters bidding large amounts of money for the rights to show certain fixtures. The football World Cup attracts a global television audience of hundreds of millions; the 2006 final alone attracted an estimated worldwide audience of well over 700 million and the 2011 Cricket World Cup Final attracted an estimated audience of 135 million in India alone.[

In the United States, the championship game of the NFL, the Super Bowl, has become one of the most watched television broadcasts of the year.Super Bowl Sunday is a de facto national holiday in America;[the viewership being so great that in 2015, advertising space was reported as being sold at $4.5m for a 30-second slot.[26]

sports

SPORTS QUIZ

Sport includes all forms of competitive physical activity or games which,[1] through casual or organised participation, aim to use, maintain or improve physical ability and skills while providing enjoyment to participants, and in some cases, entertainment for spectators.[2] Hundreds of sports exist, from those between single contestants, through to those with hundreds of simultaneous participants, either in teams or competing as individuals