Free Download Biochemistry and Molecular Biology of Plants by Buchanan .B.B, 2nd Aug-31-2015

Biochemistry and Molecular Biology of Plants by Buchanan .B.B, 2nd Aug-31-2015

Biochemistry & Molecular Biology of Plants retains the overall format of the first edition in response to the enthusiastic feedback we received from users of the book. The first edition was organized into five sections dealing with organization and functioning of the cell (Compartments), the cell’s ability to replicate (Cell Reproduction), generation of energy (Energy Flow), regulation of development (Metabolism and Developmental Regulation), and the impact of fundamental discoveries in plant biology (Plant, Environment, and Agriculture). Although the section organization of the second edition remains unchanged, many of the chapters have been written by new teams of authors, reflecting the retirement of some of our colleagues, but also the dynamic development of plant biology during the last 20 years that was driven by a cohort of younger investigators, many of whom have contributed to this second edition.

Read More

Free Download Biology-Source-Book by Sr. A. Joseph

Biology-Source-Book by Sr. A. Joseph

This source book may be used with any Biology textbook. It offers such as variety of ideas that any teacher should find something that fits into their own pattern of teaching. Teaching is such a personal art, that it would be wrong to suggest one simple approach to teaching Biology. To enrich Biology learning we must consider how to teach the subject as well as what we teach. 

The study of living organisms is called Biology. All living things have certain characteristics in common with each other. They are in dynamic equilibrium with their surroundings, constantly taking in some substances and giving out others;. While inside the organism many of these substances undergo changes. This process is called metabolism and it enables the organism to maintain a constant internal environment, regardless of external changes. Maintaining such an internal equilibrium is called homeostasis. Seven specific characteristics can be identified, which are shown by all living organisms at some stage during their life. These are growth, respiration, response to stimuli, movement, nutrition, excretion, and reproduction. Some of these characteristics can be shown by non-living things, but only living organisms carry out all seven of them. In addition living organisms are controlled by a programme of instructions contained in their genes, which can be passed on from one generation to the next. The smallest biological structure which is capable of showing all these characteristics of life is the cell. It can therefore be thought of as the basic unit of life.

Read More

Free Download Biology 1sec SB E 2014 by Shalaby .M.N et al.

Biology 1sec SB E 2014 by Shalaby .M.N et al.

Biology is closely related to chemistry. Chemistry explains the chemical structure of living organisms and the reactions taking place inside their cells. There are four basic types of organic molecules necessary to the life of living organisms. These molecules are carbohydrates, proteins, lipids, and nucleic acids. All living organisms are made up of these four molecules. These four molecules are called the biological macromolecules. In this unit, you will identify the molecular structure, functions and importance of these molecules to the living organisms. Furthermore, you will identify the chemical processes related to the functions of life. In this unit, you will practise some practical and applied activities that help you to understand the nature , structure and functions of the biological macromolecules and the chemical reactions which occur inside the cells. These activities improve some of your skills such as observations, experimentation, measurement, conclusion, interpretation, controlling the variables and so on. 

Read More

Free Download (Oxford Animal Biology) Mike Hansell-Animal architecture-Oxford University Press, USA (2005)

(Oxford Animal Biology) Mike Hansell-Animal architecture-Oxford University Press, USA (2005)

The functions of animal built structures are essentially only three: to create a protected home, to trap prey, and for intraspecific communication. To this could be added the incidental creation of burrows by obligate subterranean foragers, and the manufacture or at least use of tools by some species. The overwhelming number and diversity of builder species fall into the category of homemakers, although this includes homes built for personal use, for the family, or for the offspring alone. The most common functions of these homes are protection against extremes of temperature and the threat of predation. However, their protective walls may generate secondary problems, gas exchange, for example, which must be solved by further adaptations, some architectural, so adding to the complexity of the structure. In addition, these living spaces may, through evolution, incorporate new functions, such as food storage or fungus cultivation. Homes, therefore, vary greatly from a simple protective wall to a complex differentiated residence. Species that build prey capture devices, are very limited in their taxonomic distribution but ecologically widespread and important. Communication structures are simply rare, tool construction rarer still. The common attribute of all these structures is that they extend the control of the builder over some aspect of the environment. This chapter considers first the ability of homes to regulate the interior physical and also the biological environment, before looking at the nature and mode of operation of prey capture and finally communication devices.

Read More