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- What is nature inspired carbon materials? Describe the synthesis of corn-cob derived carbon from the corn biomass.Match the following: Zinc Calcium Nitrogen Phosphorous Copper 1. Overall growth and chlorophyll structure. 2. Reproduction and root metabolism. 3. Root and flower growth. 4. Cell wall and overall strength. 5. Regulation of plant growth.Why are deficiency symptoms of immobile elements more pronounced in younger than in older leaves? Why do plants seldom exhibit deficiency symptoms of carbon, hydrogen and oxygen although they are used by the plant in large quantities? And lastly, what is the role of pH in nutrient availability?
- In the 17th century, a Belgian doctor, Jan Baptista van Helmont,planted a small willow tree in a pot of soil. He weighed the tree andthe soil. The tree was watered for 5 years and weighed 74.4 kg morethan when he began, but the soil had lost only 57 g of mass. Explainwhat accounts for the plant’s increase in biomassMay I get a reasonable answer here? thanks. Why are deficiency symptoms of immobile elements less pronounced in older than in younger leaves?How can the physical properties of chlorophyll be used in measuring primary productivity in ecosystems? Hint: Can chlorophyll’s near infrared reflection be captured by special cameras?
- For an element to be regarded as essential, all of the following criteria must be met, except: a. No other element can perform the function. b. The element is directly involved in plant nutrition. c. The element is inorganic. d. The plant cannot complete its lifecycle without the element.The shelf life and keeping qualities of fruit and other perishable foods are greatly enhanced through irradiation, saving industry and consumers billions of dollars. How would you personally feel about eating irradiated fruit? How about spices that had been sterilized with ETO?Experiments to address the day-night discrepancy in warming (see Pic5) indicate that climate change has inhibited plant growth in warm dry areas more than in cool wet areas. Explain this observation.
- Most of the abundant gas in the atmosphere is not bioavailable to plants. How does this abundant gas become bioavailable?Which choice is most closely related to Acer rubrum? a.Rubrum acer b.Acer saccharum c.Quercus acer d.Quercus rubrumChlorophyll is green because it absorbs green light lessthan it absorbs light of other wavelengths. The accessory pigmentsin the leaves of deciduous trees tend to be red and yellow, but theircolor is masked by that of the chlorophyll. Suggest a connectionbetween these points and the appearance of fall foliage colors inmany sections of the country.