Bell Work: 9/17/12How would you design an experiment to

determine if it was the fertilizer that helped the plant grow faster? List three control factors, one independent variable, and one dependent variable for this experiment.

How would you treat the control group differently than the experimental groups?

READ THE ARTICLE ON TOP OF THE FOLDER AT YOUR GROUP!

ObjectivesSPI 0707.T/E.4 Differentiate between

adaptive and assistive bioengineered products.

SPI0707.T/E.3 Distinguish between the intended benefits and unintended consequences of a new technology.

The need to know:Bioengineering involves the use of

technology to alter or improve living things.

Bioengineered technologies can be classified as either assistive or adaptive.Assistive technologies are developed to help

organisms with changing them. Adaptive bioengineered products change the

living organism.

CRICOS: 00116K

Biomedical Engineer:

Design products and procedures that solve medical problems.

These include artificial organs, prostheses, instrumentation, medical information systems, and health management and care delivery systems.

Artificial Heart

Artificial SkinArtificial Hip

Hearing Aide

Prosthetics

Bioengineering: ForensicsPCR machines

(Polymerase Chain Reaction) allow scientists to create a vast quantity (copies) of a piece of DNA found at a crime scene.

Bioengineering in AgricultureBioengineering can

make crops resistant to diseases, herbicides, frost, & pests.

Crops for food is altered so that it is more nutritious and better tasting.

Biofuels

• A fuel made from living things.

• Biofuels substituted for some of the gasoline burned in automobile engines.

• With the help of bacteria, ethanol can be made from cellulose, a substance in the hard fibers of plants

Technology & SocietyTechnology provides solutions for many types

of social, political, and economic needs.

Intended Benefit An intended benefit is the positive purpose for which a technology is designed to be used.

Unintended Consequences Unintended consequences are uses or results that engineers do not purposely include in the design of products. An unintended consequence can be harmful or beneficial.

FoodBioengineered food must be tested for safety.

One risk is moving genes from one species to another and causing allergic reactions in people.

Most people, who drink green tea, do it for a simple reason and that is to loose weight and cut down on fat. It is now believed to be helpful in Dental Care and Tooth Decay as well besides treating Diabetes and Inflammatory Bowel Disease Syndrome (IBDS).

There is more research being performed on the benefits of green tea and soon it might be an answer to inflammatory diseases like arthritis. Green Tea might be helpful in reducing inflammation and slowing cartilage breakdown.

Intended benefit and unintended consequencesList the intended benefit and unintended consequence for each

technology:Aspirin

Intended benefit- pain reliever Unintended consequence- prevents heart attacks & reduce the

severity of strokesCars

Intended benefit- Faster transportation Unintended consequence- air pollution

DDT (pesticide) Intended benefit- kill insects and other plant pests Unintended consequence- interfering with the reproduction in

birds and killed them; helped put bald eagles on the endangered species list

Challenge:You and a partner must select and research a

bioengineered technology.You must answer the following questions on the worksheet

provided:1. Describe the function of the bioengineered technology.2. Is the bioengineered technology assistive or adaptive?

Explain.3. What is the intended benefit of the bioengineered

technology? Who does it benefit?4. What is an unintended consequence of the bioengineered

technology?5. How could bioengineers make this technology better?