MCQ Questions Class 11 Biology Mineral Nutrition with Answers

1. Influx and efflux of H⁺ ions inside the cell change the

2. Which of the following is not an essential element?

3. Which is essential for root hair growth?

4. The ion which activates many enzymes involved in photosynthesis, respiration, nitrogen metabolism is

5. Function of laghaemoglobin during biological nitrogen fixation in root nodules of legumes is to

6. An immobile element in plants is

7. In plant, nitrate is reduced to ammonia state in two steps. In second step electrons are donated by

8. Which one of the following is a wrong statement?

9. Denitrification is carried out by

10. Which one of the following microbes forms a symbiotic association with plants and helps them in their nutrition.