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- In general, plant species having ____________type of companion cells in the minor veins of leaves, transport sugars in symplastic way from mesophyll cells to sieve tube elements. thanks in advance :)Which of the following oxygenic phototrophs are believed to have generate the majority of oxygen gas in Earth’s atmosphere? a. Chlorobium b. Chloroflexus c. Clostridium d. Cyanobacteria e. purple bacteriaIt is possible that you recently discovered a new species of plant in the Amazon Rainforest. It is surprising that this plant can survive with limited sunlight in the diverse ecosystem of the Amazon. The plants unique quality has the potential to have a significant impact on both the realm of ecology and diverse sectors. Your primary research focus is now to investigate the efficiency of photosynthesis in this plant, specifically analyzing the structure of the chloroplasts and the distribution of pigments (chlorophyll and carotenoids) utilizing microscopy techniques. Which method is better for looking at the structure of chloroplasts in this plant, confocal scanning microscopy (CSM) or transmission electron microscopy (TEM). Consider the principles, advantages, and limitations of each method and align them with the goals of your research to justify your answer.
- A stoma (plural: stomata) is a tiny pore found on the underside of a leaf. When open, carbon dioxide can diffuse from the atmosphere, where it is present at approximately Catm= 0.70 mg/L, between the L = 5 μm thick guard cells, into the relatively well mixed air cavity within each stoma, and from the cavity into cells that consume it during photosynthesis. What is the mass flux of carbon dioxide into an open stoma that has a cross-sectional area of A = 2 μm2, a diffusion coefficient of D = 0.16 cm2/s, and a steady air cavity concentration of Cs = 0.04 mg/L?Photosynthesis can occur only in the upper sunlit layers of water bodies, known as the photic zone. True FalseThe process of photosynthesis probably originated: A. in plants B. as a heterotrophic specialization C. in prokaryotes D. as a chemosynthetic specialization E. in bryophytes
- It is possible that you recently discovered a new species of plant in the Amazon Rainforest. It is surprising that this plant can survive with limited sunlight in the diverse ecosystem of the Amazon. The plants unique quality has the potential to have a significant impact on both the realm of ecology and diverse sectors. Your main goal is now to investigate the efficiency of photosynthesis in this plant, specifically analyzing the structure of the chloroplasts and the distribution of pigments (chlorophyll and carotenoids) utilizing microscopy techniques. Both conventional fluorescence microscopy (FM) and CSM possess the capability to identify the distribution of pigments, specifically chlorophyll and carotenoids. How does the process of stimulating fluorescence and detecting fluorescence differ between these two microscopy techniques? Given these disparities, which approach is more likely to yield superior outcomes for your research? Could you please explain, taking into consideration…Chlorophyll 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.Which of the following statements is/are FALSE? a.NADPH is formed in the stroma. b.The cyclic electron transport involves PSII only. c.pH gradient can be formed from the splitting of H2O. d.In the pH gradient, stroma is acidic and thylakoid space is basic.