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Uace Nutrition Items And Tasks With Their Responses

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UACE NUTRITION ITEMS AND TASKS WITH THEIR RESPONSES Item 1 A farmer notices that the older leaves of his maize crop are turning yellow (chlorosis), while younger leaves remain green. The growth is stunted, and the overall yield is expected to be low. Challenges /Diseases: Deficiency of a mobile nutrient. Complications: Reduced chlorophyll synthesis, reduced RUBISCO production, inhibited light - independent reactions, and lower ATP production. Task Identify the missing nutrient, explain why the symptoms a ppear on older leaves first, and suggest an immediate solution. Nutrient: Nitrogen (N) or Magnesium (Mg), though yellowing of older leaves with stunted growth is typical of Nitrogen deficiency. Why older leaves: Nitrogen is a mobile element. When the plan t is deficient, it relocates nitrogen from old leaves to young, developing tissues. Solution: Apply nitrogen -rich fertilizer (e.g., urea, ammonium nitrate) or organic manure . Item 2 After heavy flooding, a farmer notices his plants are wilting and turning yellow, despite the soil being wet. He suspects the roots are damaged. Challenges/Diseases: Waterlogged soil (Anaerobic conditions). Complications: Lack of oxygen ( O2) in soil prevents aerobic respiration in root hair cells. Active transport of minerals (like magnesium and nitrates) stops. Without oxygen, energy (ATP) for nutrient absorption is unavailable. Task Explain why the plants are dying of nutrient deficiency despite being in water. Suggest a long -term solution . Active transport requires ATP. Root hair cells need oxygen for aerobic respiration to make ATP so as to absorb nutrients from the soil by active transport . Flooding causes waterlogging, filling air spaces and causing root asphyxiation. Hence , no ATP is pro duced, and mineral uptake stops. Solution: Install drainage systems to improve soil aeration and water removal . Item 3 A commercial greenhouse operator wants to maximize the growth of lettuce in …
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Uace Nutrition Items And Tasks With Their Responses, is an educational document on StudyUganda.com. This resource includes: "UACE NUTRITION ITEMS AND TASKS WITH THEIR RESPONSES Item 1 A farmer notices that the older leaves of his maize crop are turning yellow (chlorosis), ……" (Format: PDF) — 367.66 KB, 18 pages. Added July 23, 2026.

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