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Textbooks PDF (I-XII) RTI I ... Biology : Rationalised Content: Prelims: Guide for using QR Code: Chapter 1: Chapter 2: Chapter 3: Chapter 4: Chapter 5: Chapter 6 Chapter 7: Chapter 8: Chapter 9 ... NCERT, Sri Aurobindo Marg, New Delhi-110016. dceta.ncert@nic.in +91 8800440559. Important Helpline Numbers. Women Helpline Number : 7827170170. Cybercrime Reporting Number : 1930.
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Unicellular organisms are capable of (i) independent existence and (ii) performing the essential functions of life. Anything less than a complete structure of a cell does not ensure independent living. Hence, cell is the fundamental structural and functional unit of all living organisms.
DIVERSITY IN THE LIVING WORLD. Chapter 1. Biology is the science of life forms and living processes. The living world. The Living World. comprises an amazing diversity of living organisms. Early man could. easily perceive the difference between inanimate matter and living.
of both the aspects of Biology. The Class XI and XII textbooks in biology essentially were to reflect these threads of biological thought. While the Class XI book dealt with morphology, taxonomy, molecular and cellular aspects of physiology, the Class XII book deals with the physiological process of
Three of the twenty are shown in Figure 9.1. The chemical and physical properties of amino acids are essentially of the amino, carboxyl and the R functional groups. Based on number of amino and carboxyl groups, there are acidic (e.g., glutamic acid), basic (lysine) and neutral (valine) amino acids.
BIOLOGICAL CLASSIFICATION 11 R.H. Whittaker (1969) proposed a Five Kingdom Classification. The kingdoms defined by him were named Monera, Protista, Fungi, Plantae and Animalia. The main criteria for classification used by him include cell structure, body organisation, mode of nutrition, reproduction and phylogenetic relationships.
The use of energy from sunlight by plants doing photosynthesis is the basis of life on earth. Photosynthesis is important due to two reasons: it is the primary source of all food on earth. It is also responsible for the release of oxygen into the atmosphere by green plants.
The new syllabus of Biology has been designed to cater to the needs of pupil who are desirous of pursuing science further. The fundamental objective of this course is to develop scientific attitude and desired laboratory skills required for pursuing Biology as a discipline at this level.
In the complex body of multicellular animals the same basic functions are carried out by different groups of cells in a well organised manner. The body of a simple organism like Hydra is made of different types of cells and the number of cells in each type can be in thousands.
