Plant mineral requirements Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. Which ion is a component of chlorophyll?
- A. Nitrate
- B. Calcium
- C. Magnesium
- D. Potassium
2. A plant has stunted growth and its oldest leaves are yellow. Which ion is most likely to be deficient?
- A. Nitrate
- B. Calcium
- C. Chloride
- D. Sodium
3. What is the main role of calcium ions in plant cells?
- A. Forming chlorophyll
- B. Making amino acids
- C. Forming calcium pectate in the middle lamella
- D. Producing ATP
4. In the mineral deficiency practical, what is the purpose of the complete solution?
- A. To provide extra nitrate
- B. To act as a control for comparison
- C. To kill algae
- D. To keep roots aerated
5. Why does a lack of water cause a non-woody plant to wilt?
- A. Cells become turgid and burst
- B. Cells become flaccid because turgor pressure falls
- C. Chlorophyll is destroyed
- D. Roots cannot absorb nitrate