One
class embraces the functions relating to the life of the individual organism.
These functions have to do with the processes of eating, digesting,
assimilating, taking in of oxygen, producing of energy, and excreting of waste
matters. These may be called the nutritive functions, if the term is used in its
broadest sense. To the second group of activities belong the functions that have
to do with the perpetuation of the animal or plant species, and these are known
as the reproductive functions. Living organisms, whether plant, animal, or
human, may, in the third place, be considered in their relations to one another
and especially to the general welfare of mankind. Thus we may discuss the
beneficial or injurious effects, so far as man is concerned, of different kinds
of insects or of various types of bacteria; we may learn of the activities of
individual men or of groups of individuals which promote or retard the advance
of human society; or we might, if we were to carry the study still farther, even
seek to learn the ways by which the higher thoughts of mankind, as expressed in
poetry, music, and religion, affect the development of the human race.
Author(s): James Edward Peabody and Arthur Ellsworth Hunt
This PDF covers the following
topics related to Plant Biology : Cell Basics, Plant Cell Structures,
Dicotyledon Stem Structure, Cell Types and Plant Tissues, Secondary Growth in a
Dicotyledon Stem, Monocotyledon Stem Structure, Dicotyledon Root Structure,
Monocotyledon Root Structure, Growth of the Shoot and Root, Dicotyledon Leaf
Structure, Monocotyledon Leaf Structure, Plant Cell Glossary.
The contents of this notes are as follows : Plant Cell,
Prokaryotic and Eukaryotic, Cell Division, Cell Senescence, Extranuclear
Organelles, Cell Wal, Mitochondria, Chloroplast and Endoplasmic Reticulum,
Ribosome and Golgi Apparatus, Intranuclear Organelles, Nucleus, Chromosomes ,
Cell Signaling and Cell Receptors.
Author(s): Uttarakhand Open University, Department of Zoology,
School of Sciences
This
book explains the following topics: The Propagation Environment, Biology of
Plants, Development of Seeds, Seed Selection, Seed Production and Handling,
Principles of Propagation from Seeds, Techniques of Propagation by Seeds and
Cuttings, Principles of Grafting and Budding, Techniques of Grafting,
Propagation by Specialized Stems and Roots, Principles and Practices of Clonal
Selection, Principles of Tissue Culture and Micropropagation, Techniques for
Micropropagation and Grafting.
Author(s): Dr. Mark C. Starret, The University of Vermont
This book is intended
primarily for medical students and others who do not necessarily intend to
continue the study of botany, but who desire or are obliged to obtain some
elementary knowledge of plants, particularly in relation to general biology. The
book is based on the first portion, which deals mainly with plants, of the
course in Elementary Biology for the Preliminary Examination in Science.
This note covers the following topics:
Plant Cell and Tissue Types such as Parenchyma, Collenchyma, Sclerenchyma, Xylem and
Phloem, Interpreting Evolutionary Relationships, The Organism -Building a Plant,Stele.