1. KEY CONCEPT Understanding biology can help you make informed decisions.

2. SC.912.L.16.10* Evaluate the impact of biotechnology on the individual, society and the environment, including medical and ethical issues. (HIGH)

3. Knowledge of biology helps you understand your health. food allergies
Your health and the health of the environment depend on your knowledge of biology.
Knowledge of biology helps you understand your health.
food allergies
potential effects of obesity
Personal health and lifestyle choices—Issues include diet, obesity, exercise, smoking,
alcohol and other drugs, cancer prevention

4. Knowledge of biology helps you understand your health. food allergies
potential effects of obesity
cancer
effects of alcohol, tobacco, and other drugs
brain
lungs
heart
liver
kidneys
As compared with nonsmokers, smokers have much lower levels of an enzyme called monoamine oxidase through out their body red is high levels purple is lowest.

5. Knowledge of biology can help you understand environmental issues.
interactions in ecosystems
pollution
biodiversity
Deformities in frogs can be an indication of chemical pollution in an ecosystem.
Environment and society—Issues include interaction between environment and humans,
political, legal, economic considerations

6. Biotechnology offers great promise but also raises many issues.
Biotechnology is the use and application of living things and biological processes.
Biotechnology is being used in the search sources, such as shown in this bioreactor that used algae to produce hydrogen gas or alternative energy
Benefits—food production, medical advances, improved crop yields, detection of genetic
disorders, forensic science
Biotechnology is being used in the search sources, such as shown in this bioreactor that used algae to produce hydrogen gas or alternative energy

7. Biotechnology is the use and application of living things and biological processes.
DNA testing in medicine and forensics
transgenic (genetically modified) crops
transgenic bacteria

8. Questions are raised about the use of biotechnology.
safety of genetically
modified crops
spread of undesirable genes
decrease in biodiversity
ethical considerations
Ethical concerns—privacy of genetic testing, possible discrimination based on genetic
screening, ethics of choosing characteristics of children, use of genetic information
Risks—unknown long-term effects of genetically modified crops, safety of GM plants,
possibility of decreasing biodiversity

9. Biology presents many unanswered questions.
Over the past 50 years, biological knowledge has greatly increased.
SEM magnification 20X
Methane worms live in frozen methane gas at the bottom of the Gulf of Mexico. Because some organisms can live in such extreme environments, some scientist hypothesize that life exists, or once existed on the planet mars.

10. There are still many questions to answer in biology.
How are memories stored in the brain?

11. There are still many questions to answer in biology.
How are memories stored in the brain?
How do viruses mutate?
surface proteins
lipid
envelope
nucleic acid
capsid
Does life exist on planets other than Earth?