PPT-8.2 Cell Reproduction and Growth

All organisms come from one cell Largest Ostrich Egg Smallest Red Blood Cell Longest Nerve Cell Where do cells come from Another cell Asexual Reproduction Exact copy of the cell A combination of cells. 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.. Some Divisions, such as the . Euglenophyta. , . Bacillariophyta. , and . Dinoflagellata. consist entirely of unicellular forms. . Other Divisions, especially the . Phaeophyta. and . Rhodophyta. consist almost entirely of . Why do cells need to divide?. Growth and development. You started as 1 cell and now you’re made up of roughly 40 TRILLION cells. Repair and regeneration of tissue. Reproduction. What happens when cells divide? . 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.. How did I grow taller. ?. . How . are my worn out cells replaced. ? . How . do I heal from injuries. ?. The answer is….. Cellular Reproduction . or Mitosis. THE . CELL CYCLE:. Cells go through cycles during their lifetime.. Chapter 10. Limits to Cell Size. Cells grow as the organism grows.. However cells only grow to a certain extent then divide. Why?. . - The larger the cell the more demands on its . dna. . - a large cell has more trouble moving food in and waste out. 7.1 Objectives. Describe the debate surrounding spontaneous generation and how . Redi’s. and Pasteur’s experiments ended that debate.. Sequence the events of the cell cycle in which new body cells are produced.. ธรรมชาติของสิ่งมีชีวิต Biology ( ว. 30241) คัดลอกและแก้ไขเพิ่มเติมจาก Miss Onusa Pathumchai ธรรมชาติของสิ่งมีชีวิต Euglenophyta. , . Bacillariophyta. , and . Dinoflagellata. consist entirely of unicellular forms. . Other Divisions, especially the . Phaeophyta. and . Rhodophyta. consist almost entirely of . multicellular. KUmar. TYPES OF FUNGAL REPRODUCTION. Fungi reproduce by three methods:. A. Vegetative. B. Asexual. C. Sexual. New mycelium. New mycelium. New mycelium. VEGETATIVE REPRODUCTION. Inputs. Outputs. Vegetative growth. Life. Chapter 5.4 and 5.5. KEY CONCEPT. Many organisms reproduce by cell division.. Asexual reproduction. Creation of offspring from a SINGLE parent that does not involve the joining of gametes.. Binary fission is similar in function to mitosis.. 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) . Katerina . Dadakova. , Department . of. . Biochemistry. Figures. . adopted. . from. . Buchanan. et al., . Biochemistry & molecular biology of plants. Reproduction. and Senescence. 2. The. .