To appreciate the complexities of the element mercury, it is enlightening to review the role of
Mercury — the god — in Greek, Roman, and Celtic mythology. Both the element and the
mythological god assume complex and ever-changing forms and functions.
In Greek mythology, for example, at the height of Aegean civilization around 1600 BCE,
Mercury (or Hermes as the Greeks called him) was known as the god of shepherds and animal
fertility (Aldington and Ames, 1968).
Amines are organic derivatives of ammonia with one or more alkyl or aryl groups bonded to the nitrogen atom. As a class, amines include some of the most important biological compounds. Amines serve many functions in living organisms, such as bioregulation, neurotransmission, and defense against predators. This chapter draw and name amines, and use spectral information to determine their structures; compare the basicity of amines with other common bases, and explain how their basicity varies with hybridization, aromaticity, resonance, and induction.
Lecture Biology - Chapter 1: A view of life. After studying this chapter, you should be able to accomplish the following outcomes: List the four characteristics shared by all living organisms, define emergent property in reference to the levels of organization of living organisms, explain why maintaining homeostasis is critical for living organisms, describe how the process of reproduction leads to the evolution of species,...
After studying this chapter, you should be able to accomplish the following outcomes: List the features of carbon that result in the diversity of organic molecules, tell how macromolecules are assembled and disassembled, name the most common 5 and 6-carbon sugars and give a function for each, compare the structures of starch, glycogen, and cellulose and give a function for each,...
Being a leader is tougher than ever! Workplaces are more complex and competitive. Change is occurring at the speed of light. Work relationships need to be built in broader, matrixed, and more global organizations. Today’s leaders need new skills and more support to respond to the challenges and opportunities that rocket their way like water out of a fire hose. I have great respect for the people who take on the role of leader.
Great leaders are able to make a significant difference. They shape results and our work experience. Being a leader can also be a stressful and thankless job....
Organic farming is a modern way of agriculture management, not using any chemical
treatments which have negative effects on the environment, human health or animal health.
It produces organic foodstuffs, and at the same time enhances the living conditions of
animals. It contributes to environmental protection and helps biodiversity to increase.
Organic farming does not mean going ‘back’ to traditional (old) methods of farming. Many
of the farming methods used in the past are still useful today.
My collaborating authors and I have, from the very beginning of this
project, struggled with the question of who is our audience and who
might benefit from the lessons that one can glean from such a story of
An applied field of biology that involves the use of
living organisms and bioprocesses in engineering,
technology, medicine and other fields requiring
It is the products and exploitation from other
fundamental sciences.Traditional Biotechnology
Traditional biotechnology refers to a number of ancient ways of
using living organisms to make new products or modify
existing ones. In its broadest definition, traditional
biotechnology can be traced back to human's transition from
hunter-gatherer to farmer.
Science is occurring all around you,
and the opening photo of each chapter will preview the
science you will be learning about. The Chapter
Preview will give you an idea of what you will be
learning about, and you can try the Launch Lab to
help get your brain headed in the right direction. The
Foldables exercise is a fun way to keep you organized.
People of four generations ago lived at the turn of the 20th Century, before the invention
and widespread use in agriculture and industry of thousands of synthetic chemicals. Those of
us living in the early 21st Century inhabit a world where some of these substances – which
were introduced as far back as the 1920s and employed more and more in the 1940s and '50s
– have been around for decades. Now they are everywhere . . . including in the tissues of every
human being on Earth.
The word metabolism derives from the Greek word for “change.” Metabolism represents the sum of the chemical changes that convert nutrients, the “raw materials” necessary to nourish living organisms, into energy and the chemically complex finished products of cells. Metabolism consists of literally hundreds of enzymatic reactions organized into discrete pathways.
The osmoregulated periplasmic glucans (OPGs) produced
byRhodobacter sphaeroides, a free-living organism, were
isolated by trichloracetic acid treatment and gel permeation
chromatography. Compounds obtained were characterized
by compositional analysis, matrix-assisted laser desorption
ionization mass spectrometry and nuclear magnetic
resonance.R. sphaeroidespredominantly synthesizes acyclic
glucan containing 18 glucose residues that canbe substituted
by one to seven succinyl esters residues at the C6position of
some of the glucose residues, and by one or two acetyl resi-dues....
Chapter 28 introduce to protists. This chapter explain why the kingdom Protista is no longer considered a legitimate taxon; explain the process of endosymbiosis and state what living organisms are likely relatives of mitochondria and plastids; distinguish between endosymbiosis and secondary endosymbiosis; name the five supergroups, list their key characteristics, and describe some representative taxa.
The objectives of this chapter are to the chemistry of life. After studying this chapter you will be able to understand: What are the chemical elements that make up living organisms? How do atoms bond to form molecules? How do atoms change partners in chemical reactions? What properties of water make it so important in biology?
After studying this chapter, you should be able to accomplish the following outcomes: List the types of organisms that carry on photosynthesis; identify the main pars of a chloroplast; show that photosynthesis is a redox reaction that produces a carbohydrate and releases O2;...
Connective tissue is the most abundant and widely distributed of the primary tissues, but its amount in particular organs varies. For example, skin consists primarily of connective tissue, while the brain contains very little. This chapter provides knowledge of connective tissue, indicate common characteristics of connective tissue, and list and describe its structural elements.
Living organ donation in the UK is at present on the increase, and current policy towards
potential donors includes action on the first three rungs of our Intervention Ladder: provision of
information; the recognition of living donation as a worthy act; and full reimbursement of all
costs incurred by donors. Any form of payment that exceeds the direct reimbursement of costs
actually incurred by the donor is forbidden in UK legal jurisdictions, by European Directive, and
by numerous international agreements and statements.
Class-tested and thoughtfully designed for student engagement, Principles of organic chemistry provides the tools and foundations needed by students in a short course or one-semester class on the subject. This book does not dilute the material or rely on rote memorization. Rather, it focuses on the underlying principles in order to make accessible the science that underpins so much of our day-to-day lives, as well as present further study and practice in medical and scientific fields.
All living organisms require food for survival, growth, and reproduction. Most broadly, the term food can be taken to include any kind of nutrient needed by animals, plants, and simpler forms of life, on down to bacteria. This would include, for example, the inorganic substances that 5 plants draw from air and water. The processes that circulate these basic nutrients in the environment are called nutrient cycles, and the processes by which organisms make use of nutrients are collectively known as metabolism.