MCQ Questions Class 11 Biology Mineral Nutrition with Answers

1. An immobile element in plants is

2. Which is essential for root hair growth?

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

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

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

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

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

8. Denitrification is carried out by

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

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