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InterviewSolution
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Uproot a pea or kidney bean plant. Wash the soil from roots with water.1. What do you see in roots?2. What are these node – like structures called and how are they formed?3. What is their function?4. Are they found in the roots of all types of plants?These node-like structures are called root node or nodules. Rhizobium bacteria are present in it. They are helpful in converting atmospheric nitrogen into nitrates make soil more fertile. Nitrates are the main source of nitrogen is an integral constituent of protein. Due to this reason, farmers grow leguminous crops like kidney bean,moth,cluster bean(guar)etc in one year and cereal crops like milet, sorghum etc in the next year. |
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Answer» 1. We see node – like structures. 2. These node – like structures are called root nodes or nodules. Root nodules are formed on the roots of plants that associate with rhizobium bacteria. 3. They help in converting atmospheric nitrogen into nitrates. 4. No, they are found in the roots of leguminous plants. |
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