1.5 Biology and Your Future

KEY CONCEPT

Understanding biology can help you make informed

decisions.

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

1.5 Biology and Your Future

For quiz

• Biology

• Biosphere

• Cell

• DNA\

• Ecosystem

• Evolution

• Homeostasis

• Metabolism

• Organism

• multicellular