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
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...
In light of limited evidence that the currently concentrated market for
large public company audits has created significant adverse impact and
the general lack of any proposals that were clearly seen as effective in
addressing the risks of concentration or challenges facing smaller firms
without serious drawbacks, we found no compelling need to take action.
As a result, this report does not include any recommendations. We
provided copies of a draft of this report to SEC, DOJ, PCAOB, and the
Department of the Treasury.
The Goodwin-Niering Center for Conservation Biology and Environmental Studies
at Connecticut College is a comprehensive, interdisciplinary program that builds on
one of the nation’s leading undergraduate environmental studies programs. The Center
fosters research, education, and curriculum development aimed at understanding
contemporary ecological challenges.