1.5 Biology and Your Future - Perry Localperrylocal.org/websterj/files/2013/09/1.5.pdf · 1.5...
Transcript of 1.5 Biology and Your Future - Perry Localperrylocal.org/websterj/files/2013/09/1.5.pdf · 1.5...
1.5 Biology and Your Future
Your health and the health of the environment depend
on your knowledge of biology.
• Biotechnology- the use and application of living things and
biological process.
• Knowledge of biology helps you understand your health.
– food allergies
– potential effects of obesity
1.5 Biology and Your Future
– cancer
• Knowledge of biology helps you understand your health.
– effects of alcohol, tobacco, and other drugs
brain
lungs
heart
liver
kidneys
– food allergies
– potential effects of obesity
1.5 Biology and Your Future
• Knowledge of biology can help you understand
environmental issues.
– interactions in ecosystems
– biodiversity
– pollution
1.5 Biology and Your Future
Biotechnology offers great promise but also raises many
issues.
• Biotechnology is the use and application of living things
and biological processes.
1.5 Biology and Your Future
– DNA testing in medicine and forensics
• Biotechnology is the use and application of living things and
biological processes.
– transgenic (genetically modified) crops
– transgenic bacteria
1.5 Biology and Your Future
• Questions are raised about the use of biotechnology.
– spread of undesirable genes
– decrease in biodiversity
– ethical considerations
– safety of genetically modified crops
1.5 Biology and Your Future
Biology presents many unanswered questions.
• Over the past 50 years, biological knowledge has greatly
increased.
1.5 Biology and Your Future
• There are still many questions to answer in biology.
– How are memories stored in the brain?
1.5 Biology and Your Future
• There are still many questions to answer in biology.
– How are memories stored in the brain?
surface proteins
lipid
envelope
nucleic acid capsid
– Does life exist on planets other than Earth?
– How do viruses mutate?
1.5 Biology and Your Future
Extras for quiz
• Many of biology’s unanswered questions remain
unasked.
• People with a knowledge of biology are able to make
informed decisions about advances in biotechnology.
• The fact that animals have different teeth according to the
diet of that species is an example of how structure and
function are related in biology.
• All living thing are made up of one or more cell
• Hypotheses are testable
• Theories are supported by much evidence