Introduction to Botany. Lecture 14 - Materials of Alexey Shipunov
Introduction to Botany. Lecture 14 - Materials of Alexey Shipunov Introduction to Botany. Lecture 14 - Materials of Alexey Shipunov
Life cycleBasicsSimple life cycle: unicellular organismn−Cells = gametesZygotenn+Y!2nVegetativereproductionSexual reproductionnAsexual reproductionR!2nnnAssociated terms: mitosis, meiosis (R!), syngamy (Y!), reproduction, sexual reproduction,asexual reproduction, vegetative reproduction, isogamy, heterogamy, oogamy, zygote, gamete,male, female, spermatozoon, oocyteShipunov (MSU) Introduction to Botany. Lecture 14 October 3, 2014 5 / 10
Life cycleBasicsMulticellularity, or Origin of DeathSometimes, cells do not part after mitosis. These simple cellaggregates may benefit from their size (e.g., harder to swallow)and putative division of labor (e.g., capture light from differentsides and share products of photosynthesis)Next step is to separate germ cells and somatic cells. Somaticcells with eventually die whereas germ cells may give an offspring.This is the beginning of multicellularity.Life cycles of multicellular organisms are based on interleavinggaplont and diplont, the second is making sporesShipunov (MSU) Introduction to Botany. Lecture 14 October 3, 2014 6 / 10
- Page 1 and 2: Introduction to Botany. Lecture 14A
- Page 3 and 4: Outline1 Questions and answers2 Lif
- Page 5 and 6: Questions and answersPrevious final
- Page 7: Life cycleBasicsSimple life cycle:
- Page 11 and 12: Life cycleBasicsGeneral life cycle:
- Page 13 and 14: Life cycleFinal question (2 points)
- Page 15: For Further ReadingLife cycleBasics
Life cycleBasicsSimple life cycle: unicellular organismn−Cells = gametesZygotenn+Y!2nVegetativereproductionSexual reproductionnAsexual reproductionR!2nnnAssociated terms: mi<strong>to</strong>sis, meiosis (R!), syngamy (Y!), reproduction, sexual reproduction,asexual reproduction, vegetative reproduction, isogamy, heterogamy, oogamy, zygote, gamete,male, female, sperma<strong>to</strong>zoon, oocyte<strong>Shipunov</strong> (MSU) <strong>Introduction</strong> <strong>to</strong> <strong>Botany</strong>. <strong>Lecture</strong> <strong>14</strong> Oc<strong>to</strong>ber 3, 20<strong>14</strong> 5 / 10
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