PPT-Chapter 9: Cell Cycle and Cell Reproduction

Why do cells need to divide Growth and development You started as 1 cell and now youre made up of roughly 40 TRILLION cells Repair and regeneration of tissue Reproduction What happens when cells divide . ASEXUAL REPRODUCTION. In asexual reproduction, one individual produces offspring that are genetically identical to itself. These offspring are produced by mitosis. There are many invertebrates, including sea stars and sea anemones for example, that produce by asexual reproduction.. Denition :Anr-cycleisdenotedby(i1i2:::ir):Example :11=(1)1cycle1212=(1)1cycle1221=(12)2cycle123321=(13)2cycle123231=(123)3cycle12344312=(1423)4cycle1234535421=(13425)5cycle12345 Modern cell theory. Keep in mind that:. All living things are made up of one . or . more cells.. The . cell . is . the basic unit of life.. All cells come from preexisting cells. Just as cells reproduce as part of the Cell Cycle, living organisms reproduce as part of the life cycle.. ch. : 7. Sexual or Asexual. Asexual – involves a single parent organism and produces off-spring or daughter cells that are clones. Sexual Reproduction – involves genetic contribution in the form of gametes from two sources. Life Cycle. Life Cycle. – the development of an organism from fertilization to birth, growth, reproduction, and death.. The life cycle of every organism has these 4 main stages. 1. . Birth. – the act of bringing forth offspring.. John D. Harder. Department of Evolution, Ecology, and Organismal Biology. The . Ohio State . University. Columbus, Ohio 43210 . USA. Introduction . and Outline. Modes of reproduction in vertebrates: oviparity, ovoviviparity, and viviparity . You Must Know. Ways that the cell cycle is regulated.. Ways in which the normal cell cycle is disrupted to cause cancer. . Concept 9.3: The eukaryotic cell cycle is regulated by a molecular control system. Ms. McCabe. Do Now Cells Quiz 20 Points. Skipping lines, number 1-10. Name, Date, Period. The title is: . Cell Quiz. Answer 1-5 in complete sentences. For 6-10, write the word . and. the matching definition. Cell Cycle - a cycle of growth, development, and division. This is how organisms grow, produce new cells, and replace old cells. The cell cycle occurs in 2 phases: Interphase and . Mitosis. The Cell Cycle: Interphase. 1 x All cells are formed by division of pre - existing cells x Each new individual begins its life as a new single cell commonly the fertilized egg or zygote x A large number of cells are being t B1.7.2. Friday 9. th. January 2015. All cells (excepts sperm/egg) contain . ___ chromosomes. Sperm . . . fertilises. . an egg . .  . Embryo/baby . (__ . chromosomes) . This fusion of gametes is called fertilisation. . Sexual reproduction allows some of the genetic information from each parent to mix, producing offspring that resemble their parents, but are not identical to them. In this way, sexual reproduction leads to variety in the offspring. Animals and plants can reproduce using sexual reproduction.. Katerina . Dadakova. , Department . of. . Biochemistry. Figures. . adopted. . from. . Buchanan. et al., . Biochemistry & molecular biology of plants. Reproduction. and Senescence. 2. The. . Std XII. By Ms . Madhusrabani. . Patro. , PGT . Biology. DAV Public School, . Berhampur. Introduction. The period from birth to natural death is known . as . life span. .. It don’t .