2014 (43) September (18) August (25) Genes and genetic Mitosis and meiosis spek andromax i CE

Biology of the fourth course in the third chapter deals with the cells. spek andromax i The cells become familiar in many of the above courses and further processed in the fourth course. Track summary of the book deal with the task 1, all the concepts, so let it be this time I made the song done. The human body contains approximately 000 billion cells 60. Human can be found inside the cells are all derived from a single fertilized egg cell and all cells operate inside the body in close cooperation. The cells are divided into mitosis when the same gene is transcribed them (I'll tell yo test in more detail in Views 3 courses). The cells that are not specialized in any task that generated the distribution of the first, spek andromax i stem cells. In certain functions of specialized cells work, but the necessary genes and other genes are frozen. Thus develops a variety of cell types that a human adult is more than 200 types. spek andromax i At the same tasks are specialized cells form in the tissues. Tissues are four different types: epithelium:
- Poikkijuovainen-, smooth and cardiac muscle tissue
Man found a total of 20 000 genes on 23 vastinkromosomiparissa. Genes in different forms called alleles (yo tell you more about preparing for the exam). Genes in the human activities affect the properties of the structure of the body, the body functions and behavior. Mutation is random or a permanent change in the genome. Mutagenic factors is called spek andromax i a mutagen.
The body strives to maintain homeostasis, ie the internal level of weight status, the organs, tissues and cells require stable conditions. Therefore, the cells communicate with each other by chemical substances message or electronic transmission of nerve impulses. Message to the receiving cell response message in response spek andromax i to a substance called. spek andromax i The response may be the activation of genes or gene switching off. In some cases, eg. When some of the cells is dispensable as a message to the task of leading a cell programmed cell death, or apoptosis. Cells in the communication:
-> Mutation
About me
2014 (43) September (18) August (25) Genes and genetic Mitosis and meiosis spek andromax i CELLS Enzymes Bone and muscle proteins and their construction of cell membrane spek andromax i function and significance of Gastrointestinal at the rate of two and a cell functioning Respiratory four course ... And now alotellaan Biology repeat courses spek andromax i in animal behavior, ecosystems and biodivers ... bio-species development and reproduction in evolution and the emergence of the world Ekaa courses ... Student Experiments approaching ... Cardiac and circulatory yo ... koekertaus hormones functioning of the nervous system spek andromax i cells are human species, the history of biology getting spek andromax i underway for the fourth course :) What is this all about?