CHAPTER8 How do Organisms Reproduce - NCERT
Figure 8.1(a) Binary fission in Amoeba Activity 8.2 8.2 MODES OF REPRODUCTION USED BY SINGLE ORGANISMS Activity 8.1 n Dissolve about 10 gm of sugar in 100 mL of water. n Take 20 mL of this solution in a test tube and add a pinch of yeast granules to it. n Put a cotton plug on the mouth of the test tube and keep it in a warm place.
Link to this page:
Documents from same domain
76 EXEMPLAR PROBLEMS 3. Three bulbs A, B, C are connected in a circuit as shown in Figure 14.2. When the switch is ‘ON’ (a) bulb C will glow first. (b) bulb B and C will glow simulaneously and bulb A will
469 Semiconductor Electronics: Materials, Devices and Simple Circuits semiconductors. However , after 1990, a few semiconductor devices using organic semiconductors and semiconducting polymers have been
Unit02- Chemical and cellular basis of life ... reproduction in ﬂ owering plants 146 Responses of plants to different stimuli 150 ... Life on earth formed around 3.8 billion years ago. The ﬁ rst formed organisms are believed to be heterotrophic, anaerobic prokaryotes. Since then the evolutionary process resulted in the extensive biodiversity
foundation for understanding the reproduction and growth of all organisms. The cell theory gives two important conclusions. Firstly, it concluded that all living organisms consist of cells and secondly, all cells come from earlier cells. Description of the discovery of cell follows later. Continuity of life: The Molecular Basis of Inheritance
E) Extra chromosomal inheritance : Inheritance of Mitochondial and crhloroplast genes, maternal inheritance. F) Microbial genetics : Methods of genetic transfers – transformation, conjugation, transduction and sex-duction, mapping genes by interrupted mating, fine structure analysis of genes.
• organic compounds are used as fuels in cellular respiration to allow the other chemical reactions necessary for life • the chemicals in ecosystems are continually cycling through the natural world • the characteristics of a living organism are influenced by its genome and its interaction with the environment
VI Reproduction: Chapter - 2, 3 and 4 15 VII Genetics and Evolution: Chapter – 5 and 6 20 Units Term - II Marks VIII Biology and Human Welfare: Chapter – 8 and 10 14 IX Biotechnology and its Applications: Chapter – 11 and 12 11 X Ecology and Environment: Chapter – 13 and 15 10 Total Theory (Term – I and Term – II) 70
1 Introduction How You Should Use This Book The Advanced Placement Program is designed to encourage students to take challenging courses in high school and