Quiz on Angiosperm Physiology and Mineral Nutrition

What is the primary source of inorganic substances for plants?

• Animal waste

• Atmosphere, water, and soil

• Fertilizers

• Organic matter

Which of the following is NOT considered a macronutrient?

• Nitrogen

• Iron

• Magnesium

• Calcium

What is chlorosis in plants primarily caused by?

• Excess nitrogen

• Waterlogging

• Iron deficiency

• High soil pH

Which element was identified as the seventeenth essential element for plants in 1980?

• Zinc

• Manganese

• Nickel

• Copper

What role do mycorrhizal associations play in plant nutrition?

• Reduce water loss

• Increase leaf size

• Enhance nutrient uptake

• Promote flowering

What is the main function of plasma membrane transporters in plants?

• Root anchoring

• Water absorption

• Selective uptake of nutrients and ions

• Photosynthesis

Which of the following is a symptom of nitrogen deficiency in plants?

• Necrosis

• Stunted growth

• Yellowing of leaves

• Mottling

What is the process called when plants absorb mineral ions against their concentration gradient?

• Osmosis

• Diffusion

• Active absorption

• Passive absorption

Which nutrient deficiency leads to the localized death of tissue in leaves?

• Stunting

• Necrosis

• Abscission

• Chlorosis

What is the effect of extreme soil pH on plants?

• Increased growth

• Improved root structure

• Nutrient deficiencies or toxicities

• Enhanced photosynthesis