Bio 1151 Study Guide

Topics: Atom, Electron, Chemical bond Pages: 3 (919 words) Published: May 8, 2013
EVOLUTION- the process of change that has transformed life on Earth BIOLOGY- scientific study of life
EMERGENT PROPERTIES- result from the arrangement and interaction of parts within a system SYSTEMS BIOLOGY- constructs models for the dynamic behavior of whole biological systems EUKARYOTIC CELL- has membrane enclosed organelles, the largest of which is usually the nucleus PROKARYOTIC CELL- simpler and smaller, does not contain nucleus or other membrane enclosed organelles DNA- (Deoxyribonucleic acid) substance of genes, genetic material, double helix form GENES- units of inheritance that transmit information from parents to offspring GENE EXPRESSION- the process of converting information from gene to cellular product GENOME- is its entire set of genetic instructions

BIOINFORMATIC- use of computational tools to process a large volume of data, used in genomics POSITIVE FEEDBACK- as more of the product accumulates; the process that creates it speeds up and more of the product is produced NEGATIVE FEEDBACK- as more of a product accumulates, the process that creates it slows and less of the product is produced CHAPTER 2

MATTER- anything that takes up space and has mass
ELEMENT- substance that cannot be broken down to other substances by chemical reactions COMPOUND- substance consisting of two or more elements in a fixed ratio, has characteristics different from those of its elements TRACE ELEMENT- those required by an organism in minute quantities ATOM- smallest unit of matter that still retains the properties of an element NEUTRONS- no electrical charge

ELECTRONS- negative charge
PROTONS- positive charge
ATOMIC NUCLEUS- formed by neutrons and protons
ATOMIC NUMBER- number of protons in its nucleus
MASS NUMBER- the sum of protons and neutrons in the nucleus
ATOMIC MASS- the atom’s total mass, can be approximated by the mass number ISOTOPES- two atoms of an element that differ in the number of neutrons RADIOACTIVE ISOTOPES- decay spontaneously,...
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