NEET Botany Mineral Nutrition MCQs

A plant exposed to high levels of aluminum in the soil exhibits stunted root growth. Which of the following mechanisms is the MOST likely cause of this effect?

A patient presents with severe muscle weakness, difficulty walking, and loss of tendon reflexes. Further investigation reveals impaired glucose metabolism and cardiac abnormalities. These symptoms are MOST likely associated with a deficiency of:

A child displays stunted growth, impaired wound healing, and skin lesions. Biochemical analysis reveals decreased collagen synthesis. Which pair of nutrient deficiencies is MOST likely responsible for these symptoms?

A plant exhibits interveinal chlorosis in its young leaves, while older leaves remain relatively unaffected. This symptom is indicative of a deficiency in which micronutrient that is relatively immobile within the plant?

Which of the following deficiency symptoms is NOT correctly paired with the deficient nutrient?

(a) Necrosis of leaf tips - Calcium

(b) Heart rot in sugar beet - Boron

(c) Whiptail in cauliflower - Molybdenum

(d) Dieback of shoots - Copper

A patient experiences impaired dark adaptation, frequent infections, and dry skin. Which fat-soluble vitamin deficiency is MOST likely responsible?

A deficiency in which vitamin can exacerbate the neurological symptoms observed in pernicious anemia, a condition primarily caused by Vitamin $B_{12}$ deficiency?

A mutation in a legume plant prevents the formation of infection threads during rhizobial symbiosis. Which of the following processes would be MOST directly affected?

Which specific flavonoid is known to induce nod gene expression in Rhizobium leguminosarum when establishing symbiosis with pea plants?

A researcher observes that a particular legume mutant forms nodules, but these nodules fail to fix nitrogen. Which of the following gene mutations is MOST likely responsible?