Unit 1 Science of Biology update Fall 2010 part A non notes

Unit 1 Science of Biology update Fall 2010 part A non notes...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Welcome to Biology 220! Cell and Molecular Cell and Molecular Biology Biology
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What is Science? Not just a collection of facts! The “facts” of science are our attempts to state our current level of understanding of the world around us Based on Observations Experiments Any “fact” is only as sound as the observations or experiments on which it is based Biology is the part of science that studies living things
Background image of page 2
True or False? The sun is the source of energy for all life on earth.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
False!
Background image of page 4
What causes ulcers in humans? Conventional wisdom Stress Too much coffee Spicy foods
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Most ulcers are caused by bacteria Conventional wisdom was not correct New information resulted in better understanding A bacterium called Helicobacter pylori was found to be the cause of most ulcers.
Background image of page 6
Scientific Inquiry The diverse ways in which scientists study the natural world and propose evidence derived from their work Cell and molecular biology have changed radically in the past 5 years Human Genome project Has changed the way we perceive organisms Old concept: humans have 100K genes, each of which codes for a protein New concept: human have approximately 25-30K genes; many genes code for more than one protein or for parts of proteins; interactions between proteins result in increased complexity of an organism Only a small part of the genome of humans (<2%) codes for proteins
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Model Systems Biological systems are extremely complex It may be necessary to represent a living system using a simplified scheme or structure called a
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/05/2012 for the course BIO 231 taught by Professor Nette during the Spring '11 term at Cuyamaca College.

Page1 / 22

Unit 1 Science of Biology update Fall 2010 part A non notes...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online