Plant nutrients - SS2 Agriculture Past Questions and Answers - page 2
Which nutrient is involved in osmosis and water transport in plants?
Manganese (Mn)
Chlorine (Cl)
Molybdenum (Mo)
Phosphorus (P)
What is the primary function of nitrogen (N) in plants?
Enhancing root growth
Aiding in photosynthesis
Preventing disease
Improving fruit quality
Which nutrient deficiency can lead to poor fruit development?
Copper (Cu)
Manganese (Mn)
Boron (B)
Potassium (K)
Which nutrient is essential for sugar transport in plants?
Iron (Fe)
Zinc (Zn)
Manganese (Mn)
Boron (B)
What is the primary function of phosphorus (P) in plants?
Resistance to diseases
Energy transfer
Water uptake
Lignin synthesis
Explain the role of potassium (K) in plant growth and development.
Potassium (K) is essential for water uptake, photosynthesis, and enzyme activation in plants. It helps regulate osmotic pressure, enhances drought resistance, and improves overall plant vigor.
Describe the symptoms of iron (Fe) deficiency in plants.
Iron deficiency in plants typically results in interveinal chlorosis, where the areas between the veins of leaves turn yellow while the veins remain green.
Why is molybdenum (Mo) important for certain types of plants like legumes?
Molybdenum is crucial for nitrogen fixation in legume plants. It helps these plants convert atmospheric nitrogen into a form that can be used for growth, making legumes important for soil nitrogen enrichment.
How does zinc (Zn) deficiency affect plant growth, and what are some visual indicators of this deficiency?
Zinc deficiency can lead to stunted growth, distorted leaves, and reduced flowering. Visual indicators include interveinal chlorosis and small, misshapen leaves.
Discuss the role of boron (B) in plant cell division and overall growth.
Boron is essential for cell division, as it aids in the formation of the cell wall. It promotes healthy root development, flowering, and fruit set in plants.