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Class XI Biology Mineral Nutrition: Micronutrients and Macronutrients

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Question 1

Choose the correct statement from the given options :

Question 2

About 98 per cent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen

Question 3

Which one of the following is not a micronutrient?

Question 4

Element present in middle lamella is

Question 5

Assertion: Manganese plays a vital role in photosynthesis.
Reason: Manganese takes part in the water splitting reaction, thus releasing oxygen.

Read the assertion and reason carefully to mark the correct option out of the options given below:

Question 6

Role of molybdenum is

Question 7

Raphides are needle‑like crystals made up of

Question 8

You are setting up some to grow flowers in your apartment and discover that you bought sand rather than potting soil. You decide to go ahead and plant the flowers in the sand to save yourself a trip back to the store. Much to your dismay all of your plants die. How can you explain this failure?

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Oct 16NEET & AIIMS