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The secondary metabolite found in great abundance in the secondary cell walls of secondary xylem (wood) cells is:
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- Plants do not require oxygen to produce ATP. A) True B) FalseWhich of the following characteristics is NOT exhibited by phytochemicals? 1. reduce the risk of cataracts 2. inhibit activity of enzymes to activate carcinogens 3. reduce the risk of macular degeneration 4. act as antioxidantsName the sugar that are not generally transported in phloem sap. Also give the reason?
- Choose correct option and explain. A plant wilts when- a) sunlight is not available and the rate of photosynthesis slows down. b) the mycorrhizae among its roots have "stolen" too much water from the plant. c) it is sad. d) turgor pressure in cells' central vacuoles is high. e) turgor pressure in cells' central vacuoles is lowDescribe the similarities and differences in the absorption and regulation of iron and zinc. What is the mechanism/process that makes phytates affect iron and zinc absorption? How can we enhance the absorption of these sources? Which is the better choice—to eat processed foods that have been enhanced with phytochemicals or to eat natural foods that are rich in phytochemicals? Explain your answer. Look up any uncommon food item in our culture, and find out the nutritional content (what nutrients can this item provide us both macro and micro? How to use it in the diet?)Briefly explain the nitrogen fixation mechanism in leguminous plant
- Which of the following statements best describes the energy transfer between the levels of energy Pyrmida) What makes photorespiration disadvantageous regarding crop yields?b) Describe how the AP3 pathway bypasses photorespirationIdentify how the function of C4 biochemistry results in an increase in WUE (water use efficiency, unit C gain per unit H20 loss) and NUE (nitrogen use efficiency, unit C gain per unit leaf N) relative to a C3 plant
- What are the differnces between primary and secondary metabolises and how do some plants recognize spesific substance released from pathogens?ENUMERATE the protein amino acid produced by plants from the following precursors. Ribulose-1,5-bisphosphate/ Calvin cycle Pyruvate a-ketoglutarate Oxaloacetate Phosphoribosylpyrophosphate Shikimic acid pathwayBlack spot fungus is a disease that is known to attack roses in humid climates. At first, small black spots appear on the leaves. If left untreated, the entire plant can die. From this information, what is mostly the main cause of the demise? a) The plants’ cells are unable to carry out aerobic respiration. b) The leaves are unable to manufacture enough sugar to maintain the health of the plant. c) The roots are unable to absorb enough water. d) The stems are unable to support the plant.