Plant Nutrition

How many essential nutrients does a plant require?

• 15

• 17

• 16

• 20

Plants absorb nutrients through their _______.

• Stem

• Leaves

• Flowers

• Roots

Which of the following minerals is required by the plants in large quantities?

• Chlorine

• Phosphorus

• Manganese

• Molybdenum

Chlorosis is yellowing of the leaves, caused due to the deficiency of

• Zinc

• Potassium

• Manganese

• All of the above

Which of the following minerals is required for the synthesis of chlorophyll?

• Copper

• Potassium

• Nitrogen

• Iron

How is a macronutrient different from a micronutrient?

• Macronutrients are present in large quantities to help with plant growth.

• Macronutrients consist of the elements boron, chlorine, and manganese.

• Macronutrients are classified as trace elements.

• Macronutrients are only used by plants in small quantities.

The deficiency of phosphorous in plants causes:

• Yellow coloration in leaves

• Dark green coloration in leaves

• Blue coloration in leaves

• Pale yellow coloration in leaves

Which of the following is not a micronutrient?

• Boron

• Magnesium

• Zinc

• Molybdenum

Nitrogen is absorbed in the form of:

• Nitrogen oxides

• Nitrates

• Nitric acid

• Free nitrogen gas

Choose the false statement about the nutrition:

• Manganese and molybdenum are micronutrients

• Nitrogen and phosphorus are macronutrients

• Nutrition provides energy

• d. Plant hormones are nutrients