Prepare for NEET Biology Mineral Nutrition with MCQs & PYQs on NEET.GUIDE. Enjoy free practice, previous year questions, and expert solutions to understand nutrient uptake and deficiency.
A scientist is studying the role of micronutrients in plant growth. They observe that a particular plant species exhibits stunted growth and interveinal chlorosis in young leaves. Which micronutrient deficiency is MOST likely responsible for these symptoms?
Manganese
Zinc
Copper
Iron
A plant experiencing calcium deficiency shows necrotic spots on its leaves and stunted root growth. This is primarily because calcium:
Is a mobile element easily transported within the plant.
Acts as an enzyme activator in various metabolic pathways.
Is a component of chlorophyll and other photosynthetic pigments.
Is crucial for cell wall integrity and membrane permeability.
Which pair of elements are predominantly found in older leaves due to their immobility within the plant?
Nitrogen and Potassium
Magnesium and Phosphorus
Calcium and Boron
Iron and Manganese
A researcher observes that a plant exhibits stunted growth, delayed flowering, and reduced pollen viability. Further analysis reveals a deficiency in a specific micronutrient that plays a role in pollen germination and cell division. Which micronutrient is MOST likely deficient?
Iron
Manganese
Copper
Boron
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?
Magnesium
Iron
Potassium
Nitrogen
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) Necrosis of leaf tips - Calcium
(b) Heart rot in sugar beet - Boron
(c) Whiptail in cauliflower - Molybdenum
(d) Dieback of shoots - Copper
Which element is NOT essential for the synthesis of chlorophyll?
Magnesium
Nitrogen
Iron
Sodium
Which group of elements are predominantly involved in maintaining osmotic potential in plants?
Calcium, Magnesium, Sulfur
Iron, Manganese, Zinc
Potassium, Chloride, Sodium
Nitrogen, Phosphorus, Potassium
During the process of root nodule formation, which of the following is the initial signal molecule released by the plant roots that attracts rhizobia?
Flavonoids
Nod factors
Lectins
Cytokinins
Which of the following elements plays a crucial role in maintaining turgor pressure within plant cells?
Sodium
Potassium
Calcium
Magnesium