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Careers in Botany and Agriculture

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Careers in Botany and Agriculture Ka Hana Imi Na auao A Science Careers Curriculum Resource Go to: www.cds.hawaii.edu/kahana Careers: Farming Cultivating a ... – PowerPoint PPT presentation

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Title: Careers in Botany and Agriculture


1
Careers in Botany and Agriculture
Ka Hana Imi Naauao A Science Careers
Curriculum Resource Go to www.cds.hawaii.edu/k
ahana
2
Careers Farming
  • Cultivating a plant crop
  • Cabbage, beets, apple, onion, banana, wheat,
    pumpkin, pine trees (Christmas) etc.
  • Stewardship of land

3
Careers Fishing
  • Dangerous and demanding
  • Not just catching fish, also feeding
  • Responsible not to over fish certain areas
  • Price rises and falls with market demand

4
Careers Ranching
  • Raising livestock
  • Cattle, sheep, porcine, equine
  • Used for human consumption and recreation
  • Region specific

5
Careers Government
  • USDA, FDA
  • DLNR, Forestry Service
  • Many government agencies dedicated to the
    preservation and protection of our environment
    and your safety.

6
How Plants Work
  • Quick intro to photosynthesis!

7
Plants are the basis of all life
  • able to turn materials most organisms cannot use
    into something they need
  • through a process called photosynthesis, plants
    can convert carbon dioxide (CO2) and water (H2O)
    with the help of the sun and turn it into sugar
    (C6H12O6) and oxygen gas (O2)
  • PRETTY AMAZING!

8
How is it done?
  • plants use leaves to capture energy from sunlight
  • like solar panels on your roof to make hot water
  • inside the leaf there are beads of green organs
    called chloroplasts
  • the chloroplasts are able to capture the suns
    energy and uses it to fuel the magical stage of
    photosynthesis

9
Making Food
  • after collecting energy from the sun, the plant
    can now start making sugars
  • this process of making sugar from water and
    carbon dioxide was discovered by an American
    biochemist named Melvin Calvin

10
Making Food
  • he found that there was a cycle happening in the
    plant where it took the energy from the sun to
    start a cycle of reactions that resulted with
    sugar
  • he realized this is the food the plant uses to
    stay alive
  • his discovery was later named the Calvin Cycle

11
Making Food
Capture energy from sunlight
Fuel Calvin Cycle
Makes sugars
Steps of Photosynthesis
Uses sugar for food or reinforcement (bark,
stems, leaves)
12
At night theres no sun!
  • at night when the sun is gone, the plant is still
    needing energy
  • so now the plant needs to metabolize something
    (break a molecule) for energy
  • the plant stores the sugar it made during the day
    to use later at night when it needs a snack!

13
Photosynthetic Equation
  • 6 CO2 6 H2O ? C6H12O6 6 O2
  • Problem this doesnt show the magic of
    photosynthesis. It gives the ingredients but
    doesnt explain how its done.

14
References
  • Trevor Gallant's Biology http//kvhs.nbed.nb.ca/g
    allant/biology/photosystem.jpg, Access Date Nov.
    27, 2006
  • http//bio1151.nicerweb.com/doc/class/bio1151/Lock
    ed/media/ch10/10_18CalvinCycle_L.jpg, Access
    Date Nov. 27, 2006
  • Lahina Divers, http//www.lahainadivers.com/img/pi
    cs/04_papio.jpg, Access Date Nov. 27, 2006
  • http//www.spottrup.dk/cms/uploadedimages/herford.
    jpg, Access Date Nov, 27, 2006
  • http//www.naai.moldova.md/GI_images/econ_agric/gr
    iu_l.jpg, Access Date Nov. 27, 2006
  • US Department of Agriculture, http//www.fs.fed.us
    /r2/nebraska/gpng/images/usda.gif, Access Date
    Nov. 27, 2006
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