Plant Mineral Deficiency Quiz

Which ion is required for making amino acids in plants?

• Magnesium

• Potassium

• Nitrate

• Phosphate

What symptom is caused by magnesium deficiency?

• Wilting

• Stunted growth

• Chlorosis

• Red leaves

Potassium is important in plants for:

• Making starch

• Cell division

• Photosynthesis

• Enzyme activation

A plant with yellowing leaves is likely deficient in:

• Nitrate

• Magnesium

• Potassium

• Iron

Answer explanation

The leaves turn yellow because Magnesium is part of the chlorophyll molecule.

Which of the following would be most affected by nitrate deficiency?

• Flower color

• Root hair length

• Plant height

• Leaf shape

Which mineral is essential for making chlorophyll?

• Nitrate

• Magnesium

• Calcium

• Zinc

Which of the following is not a symptom of potassium deficiency?

• Weak stems

• Poor flower development

• Purple leaves

• Yellow leaf edges

Answer explanation

Purple leaves is a symptom of Phosphorus (P) deficiency.

Mineral ions are absorbed by:

• Xylem

• Root hairs

• Stomata

• Phloem

Answer explanation

Mineral ions enter a plant's roots via the process of active transport.

Potassium-deficient plants may show:

• Curled and yellowed leaves

• Excessive leaf growth

• More chlorophyll

• Red stems

What happens when plants lack essential minerals?

• They photosynthesize more

• They wilt permanently

• Their metabolism increases

• They show deficiency symptoms