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Introduction to Engineering and Technology Concepts

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Introduction to Engineering and Technology Concepts Unit Five Chapter One Agriculture and Biotechnologies – PowerPoint PPT presentation

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Title: Introduction to Engineering and Technology Concepts


1
Introduction to Engineering and Technology
Concepts
  • Unit Five
  • Chapter One
  • Agriculture and Biotechnologies

2
Instructions for Success
  • Each chapter of every unit will begin with a
    Mindjog. This is a warm up question that you
    should answer in your workbook in the proper
    chapter.
  • Please take notes as you move through the
    presentations in the notebook that has been
    provided.
  • Sections will come up in each presentation with
    an assignment notice. Turn to the section
    detailed on the slide in your workbook and
    complete the assignment before proceeding.
  • Good luck!

3
Objective
  • Students will define agriculture and
    biotechnology, and how both have played a role in
    things we use and eat in everyday life.

4
Mindjog!
  • On your worksheet, please respond to the
    following question 
  • Think about the food that you eat the large
    pieces of corn, the really red tomatoes, the
    juicy steak. Do you think that your food has
    been altered in any way before coming to your
    table? How?

5
Agriculture
  • When you hear someone say, agriculture, what do
    you think of?
  • Do you think of rows of corn, fields of wheat,
    and cows roaming the grounds?
  • Agriculture is people using materials,
    information, and machines to produce food and
    natural fibers (Wright, 2004).
  • Essentially, agriculture can described as
    farming.

6
Components of Agriculture
  • There are three major components that are managed
    by people in agriculture land, buildings and
    machinery, and crops and livestock (Wright,
    2004).
  • The above description seems to suggest that there
    are two types of agriculture crop production and
    animal husbandry (Wright, 2004).
  • Crop Production grows plants for various uses
    such as food, feed, and natural fibers (Wright,
    2004).
  • Animal Husbandry involves breeding, raising, and
    training animals for food, work, or fibers
    (Wright, 2004).

7
Crop Production
  • Crop production can include grain, vegetables,
    fruits and berries, nuts, forage crops for
    animals, and even nonfood crops like tobacco,
    cotton, rubber, and Christmas Trees (Wright,
    2004).
  • The technology that goes into crop production
    includes
  • Power or pulling equipment
  • Tillage equipment
  • Planting equipment
  • Pest-control equipment
  • Irrigation equipment
  • Harvesting equipment
  • Transportation equipment
  • Storage equipment (Wright, 2004).

8
Consider
  • Consider that before agriculture, humans were
    hunters and gatherers. The way of life consisted
    of catching fish, gathering wild plants, and
    hunting game. The discovery that some animals
    could be tamed and that plants grow from seeds
    10,000 years ago gave way to the start of
    agriculture (Wright, 2004).
  • The United States uses more than 40 of its total
    land for farming (Wright, 2004).

9
Biotechnology
  • Biotechnology and agriculture are two related
    studies.
  • One aspect of biotechnology considers the
    practices that improve propagation, growing, and
    harvesting activities (Wright, 2004).
  • More directly, biotechnology uses biological
    agents in processes to produce goods or services
    (Wright, 2004).
  • These agents are microorganisms, enzymes, or
    animal and plant cells (Wright, 2004).

10
Biotechnology and Farms
  • Biotechnology is being used to create, improve,
    or modify plants, animals, and microorganisms
    (Wright, 2004).
  • The basics of biotechnology can be seen in
    domestic dogs from the wild wolf, desired
    characteristics were bred with other dogs
    possessing those same characteristics to form the
    different breeds we have today.
  • Farmers do this same tactic with their crops.
    Corn was originally very, very small and tough.
    Through selective breeding, we have a corn that
    is tasty and large in size.

11
Biotechnology (continued)
  • However, selective breeding takes time to see if
    the desired gene, or trait, you want is showing
    up in the offspring.
  • Biotechnology takes us down to the cellular level
    with Deoxyribonucleic acid, or DNA.
  • DNA, which is the blueprint for any living thing,
    gives orders to the genes about how to look, act,
    and respond (Wright, 2004).
  • Geneticists can now go into DNA and alter it to
    have specific characteristics (Wright, 2004).

12
Biotechnology (continued)
  • Changing DNA also includes the idea of Gene
    Splicing, where DNA can be severed at a specific
    point and then spliced back together with
    desirable parts (Wright, 2004).
  • Just think taking the DNA of a firefly, that
    glows in the dark, and splicing it with a fish!
    Youd have fish that glow in the water at night!
  • Unfortunately, this sort of thing can also cause
    a problem

13
Controversy
  • Some people believe that we should not change the
    genetic structure of living things (Wright,
    2004).
  • As an example, what if we did splice firefly and
    fish DNA and then introduce our glowing fish back
    into the ecosystem? What if it breeds and makes
    more glowing fish?
  • Perhaps before we engineered it, that fish was
    never much of a food source for any other
    predator in the water. However, now that it
    glows, predators easily see it, attack, and now
    the species is becoming endangered in that area.

14
Assignment 1
  • Please turn to the section in your workbook
    entitled, Unit Five, Chapter One Agriculture
    and Biotechnologies.
  • Complete the extension questions under the
    Assignment 1 header before moving onto the
    next section of slides.

15
BEFORE MOVING ON
  • Did you complete the Assignment 1 Section
    under the Unit Five, Chapter One Agriculture
    and Biotechnologies section of your workbook?
  • If you have, please proceed to the next slide.

16
Chapter One Completed!
  • Please close this presentation and launch the
    file entitled, Chapter 2 Medical Technologies!

17
References
  • Wright, R. (2004) Technology The
    Goodheart-Willcox Company, Inc.
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