OKPARA UNIVERSITY OF AGRICULTURE UMUDIKE (MOUAU) COLLEGE OF CROP AND SOIL SCIENCE (CCSS) DEPARTMENT OF AGRONOMY A TERM PAPER WRITTEN IN PARTIAL FULFILLMENT OF THE COURSE CGB 514 (CYTOGENETICS) TOPIC: PLANT CELL ORGANELLES AND THEIR FUNCTIONS‚ THE DIFFERENCES BETWEEN THE PLANT AND ANIMAL CELL BY ONUMAEGBU BRIGHT C MOUAU/08/11351 LECTURE: DR J N EKA
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Cells‚ Cell Division‚ and Cell Specialization Fundamentally Different Types of Cell Prokaryotic Cell- single celled: only DNA+ structure (“before nucleus”) E.g. zygote-complete DNA Eukaryotic Cell-multi-celled (“after nucleus”) Prokaryotes Eukaryotes DNA In “nucleoid” region Within membrane-bound nucleus Chromosomes Single‚ circular Multiple‚ linear Organelles None Membrane-bound organelles Size Usually smaller Usually larger- 50 times Organization Usually single-celled Often multicellular
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“Eukaryotic chromosomes are generally much bigger than those of prokaryotes. In eukaryotic cells‚ replication may begin at dozens or even hundreds of places on the DNA molecule‚ proceeding in both directions until each chromosome is completely copied. Although a number of proteins check DNA for chemical damage or base pair mismatches prior to replication‚ the system is not foolproof. Damaged regions of DNA are sometimes replicated‚ resulting in changes to DNA base sequences that may alter certain
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Name: Nimeshi Fernando Discuss why it is important for the tourism industry to distinguish between different types of tourists The Tourism industry is a service industry. The Oxford dictionary defines the word ‘tourism’ as “the commercial organization and operation of holidays and visits to places of interest”. The tourism industry comprises of various sectors such as – lodging‚ food and beverage services‚ transportation‚ entertainment and activites. Whereas “a ‘tourist’ (visitor/traveler)
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Neurons are perhaps the most important part of the human body‚ and while they are a vital part to our lives on a daily basis‚ many don’t recognize the significance they play‚ and have little to no idea how they work. In order to demonstrate just how important these neurons are to our survival‚ I will show you why and how these remarkable‚ microscopic pieces work. In doing so‚ you’ll be able to fully understand one of the human bodies most critical biological features. Neurons are the essential tools
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Theology 100 Father O’Leary 6/5/08 Final Exam Questions 1. Is Religion important? Why or why not? 2. Would anything change if the Tomb of Jesus was discovered and the bones within were proven to be his? 3. Think a bit about your talents and abilities. Do you think that one of more of these talents you possess could serve the common good of the society in which you live? 4. Think a bit about the talents or skills that either you have not yet developed or do not think you possess
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evident‚ that emotional bond‚ more confidential relations usually build between a patient and a nurse. That is why it is so important‚ that a nurse is able to not only provide assistance in taking pills or changing the bed-clothes for the patient‚ but also do her best and be a kind of moral support for him. The basis of pediatric nursing is the same‚ but still there is a number of factors and peculiarities that differentiate it from other types of nursing. First of all pediatric nursing includes
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state known as a virion. A virion is a dormant state that the virus is in when there are no cells around to utilize. During this state‚ the virion does not grow or reproduce‚ but remains in equilibrium until their is a cell that it can infect. While many use this as a reason for why viruses are nonliving‚ I would say just the opposite. The fact that viruses become dormant virions when there are no cells nearby demonstrates an ability to recognize conditions which allow them to reproduce and grow
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Why are proteins important? Proteins can easily be addressed as one of the most important molecules in animal cells. There are many varieties of protein molecules which allow a vast range of biological activities in the cell.( Williams‚ G.(2000))’Proteins are big compound with large molecular masses’’(Williams‚ G.(2000)) whose main chemical constituents are hydrogen‚ carbon ‚oxygen and nitrogen. A protein structure consists of a specific sequence of amino acids called the
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Why Eminem Is Important Why Eminem Is Important Marshall Mathers‚ otherwise known as Eminem‚ plays a great part in society. Think about what would happen if there was no Eminem? One less rapper is more than likely what you are thinking right? Well it is not just one less rapper. It would also be one less role model for those who really care about him. Eminem is an influence to the young life and even the adults. His songs are stories based on his life and things that he would have wanted to change
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