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Agronomy #1

Agronomy #1. Oct. 10 th 2012. Plant review:. The symbol “ ” means that the function of the part follows. IKEBENA- Japanese Flower. Plant review:. Male Parts Stamen- male part of the flower -made up of the filament + anther -# of stamen usually = # of petals. . IKEBENA-

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Agronomy #1

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  1. Agronomy #1 Oct. 10th 2012

  2. Plant review: The symbol “” means that the function of the part follows

  3. IKEBENA- Japanese Flower Plant review: Male PartsStamen- male part of the flower -made up of the filament + anther -# of stamen usually = # of petals.

  4. IKEBENA- Japanese Flower Plant review: Male PartsAnther- on top of filament  produces and contains pollen Filament- fine hair-like stalk supports anther

  5. cucumber flower Plant review: Female Parts Pistil- female part of the flower -made up of the stigma, style, and ovary. Stigma- sticky bulb in center of flowers receives pollen grains for germination

  6. cucumber flower Plant review: Female PartsStyle- long stalk supports stigma Ovary- usually at the bottom of the flower has the seeds inside and turns into the fruit that we eat. Ovule- part of the ovary that becomes the seeds.

  7. Plant review: Other Important Parts of a FlowerPetal- colorful, bright part of the flower attract pollinators

  8. Plant review: Other Important Parts of a FlowerSepal- looks like little green leaves covers the outside of flower bud to protect the flower before it opens.

  9. The 6 primary parts of a flower pollen stigma anther style filament ovary

  10. Be ready for quiz on Thur with more details:

  11. Be ready for quiz on Thur: pollen

  12. QUESTIONS-answer on back of notesheet.1. What is the male part of the flower? 2. What is the female part of the flower? 3. What produces and contains pollen? 4. What is the part that looks like little green leaves ? 5. Where does pollen collect to begin germination? Answer these: 1.stamen 2.pistil 3.anther 4.sepal 5.stigma

  13. Are plants made of 100% water?

  14. …obviously not Compare the rainy season to the dry season growth.

  15. In 1771 Joseph Priestly performed an experiment. He burnt a candle in a sealed container with a plant. The candle flame went out after a little while. Why?

  16. He tried to light the candle, but it would not light. After a month he was able to light the candle. What does this show? Plants free up O2 (oxygen) How did he light the candle?¤

  17. PHOTOSYNTHESIS Using the energy of sunlight to convert WATER and CARBON DIOXIDE into OXYGEN and high energy SUGARS.

  18. What are 3 things plants need to grow? Water, Sunlight Carbon dioxide (CO2)

  19. Where does the photosynthesis take place? In chloroplasts

  20. Each cell may contain 40-50 chloroplasts

  21. What do plants produce? Glucose sugar + (starch = long chains of glucose molecules), Oxygen (O2) Why is this upside down? -No… not because we are crazy!!

  22. reaction for photosynthesis? need  make light energy  chemical energy water +carbon dioxide  sugar + oxygen

  23. How come a plant can survive in a closet?

  24. Glucose may be stored as either glucose or starch. It is harder to break down starch than simple sugars. Why?

  25. Will it eventually die?

  26. **CO2 mentionable… 1 acre of corn removes 5512 pounds (mass of 37 students) of CO2 in one growing season.

  27. LIGHT & PIGMENTS: • In addition to water and CO2, photosynthesis requires light and chlorophyll, a molecule in chloroplasts. • CHLOROPHYLL = plants’ main pigment, appears green.

  28. Lets try to figure out the chemical reaction called cellular respiration Animal needs?  Animals produce? Enzymes C6H12O6 + 6 O2  6 CO2 + 6 H20 + Energy ¤ sugar + oxygen  carbon dioxide +water+ energy

  29. Plants go through respiration too!! Enzymes C6H12O6 + 6 O2  6 CO2 + 6 H20 + Energy ¤ sugar + oxygen  carbon dioxide +water+ energy

  30. Photosynthesis: chlorophyll 6CO2 + 6H2O + light  C6H12O6 + 6O2 Respiration: enzymes C6H12O6 + 6O2  6CO2 + 6H2O + energy They are the opposite

  31. When do animals go through respiration? 24 hours a day, 365.25 days a year until they die. When do plants go through respiration? 24 hours a day, 365.25 days a year until they die.

  32. When do animals go through photosynthesis? Never. When do plants go through photosynthesis? Only when there is light.

  33. Transpiration • When water in the roots is pulled through the plant and exits as water vapor through the stomata of the leaves • Transpiration uses about 90% of the water that enters the plant.

  34. Transpiration • Transports nutrients. • Helps plants cool off. • Gives off Oxygen • Absorbs Carbon Dioxide

  35. How does it work?1. entrance • Xylem – Pulls water and minerals from the roots through stem and up to the leaves • Phloem – Pulls glucose from photosynthesis to go throughout the plant and down to the roots

  36. How does it work?2. exit • Opening in the bottom of the leaves • Guard Cells and Stoma • Leaf Structure

  37. How does it cool? 80% of the cooling effect of a shade tree is from the evaporative cooling effects of transpiration. 

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