In this Unit, you will discover What molecules make up cells How the cell membrane separates cells from their external environment but allows substances into and out of the cell What special functions cell structures have and how these contribute to keeping an organism alive What processes in cells capture and release the energy needed for survival and how we harness these processes
It has been said that we are made of the stuff of
stars. What do you think this means? The pine wood cells pictured on the right and all other organisms on Earth are made mostly of only...
from the Latin cella, meaning storeroom or chamber. It was first used in biology in 1665 by the English botanist Robert Hooke to describe the individual units of the honeycomb-like structure he observed in cork under a compound microscope. The “cells” Hooke observed were actually the empty lumens of dead cells surrounded by cell walls, but the term is an apt one because cells are the basic building blocks that define plant structure. This book will emphasize the physi
It then outlines agriculture’s importance to the U.S. economy, assesses the vulnerabilities in the general food industry, examines the capabilities that are needed to exploit those vulnerabilities, and explores the likely outcomes from a successful attack. The report next considers the question of why terrorists have yet to employ agricultural assaults as a method of operation and concludes with proposed recommendations for the U.S. policymaking community.
The letter of intention to audit provides a general outline as to the function or purpose
of audits conducted by the Office, indicating that the inspection will have a focus on
areas and systems within the company where personal data is held and processed. If
there are any areas or issues of particular concern in advance of the audit, these
may also be highlighted in the letter. In some cases an indication will be given as to
why the organisation has been selected for audit.
In the event of the audit of a large organisation, particular areas may...
In this course on game theory, we will be studying a range of mathematical
models of con°ict and cooperation between two or more agents. The course
will attempt an overview of a broad range of models that are studied in
game theory, and that have found application in, for example, economics
and evolutionary biology. In this Introduction, we outline the content of
this course, often giving examples.
In the last decade the progress of molecular biology has made a strong
influence on the theoretical framework of population genetics and evolution.
Introduction of molecular techniques in this area has resulted in many new
discoveries. As a result, a new interdisciplinary science, which may be called
'Molecular Population Genetics and Evolution', has emerged. In this book
I have attempted to discuss the development and outline of this science.
In recent years a large number of papers have been published on this
In this chapter, you will learn to: Define peripheral nervous system and list its components; classify general sensory receptors by structure, stimulus detected, and body location; outline the events that lead to sensation and perception; describe receptor and generator potentials and sensory adaptation; describe the main aspects of sensory perception.