Chlorosis in plants is caused by the deficiency of:
Correct answer: D. both a and b
- A. nitrogen
- B. magnesium
- C. potassium
- D. both a and b
Explanation
Chlorosis is the yellowing of leaves due to a lack of chlorophyll, often caused by nutrient deficiencies. Nitrogen is a vital component of chlorophyll, and magnesium is part of the chlorophyll molecule. Therefore, deficiencies in nitrogen and magnesium can both result in chlorosis. Potassium, while important for various plant functions, does not directly affect chlorophyll production, so its deficiency does not typically cause chlorosis.
This question appeared on the ETEA MDCAT 2011 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Plant Nutrition and Transport
Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
Practise Forms and Functions of Plants
272 free Forms and Functions of Plants MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.