Question:
Study the flow chart and answer the following questions :
(a) Identify A, B and C in the flow chart.
(b) Give one another example of bio-fertilizer B.
Study the flow chart and answer the following questions :
(a) Identify A, B and C in the flow chart.
(b) Give one another example of bio-fertilizer B.
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Glomus is a fungus, Azospirillum is free-living, and Rhizobium is symbiotic; Azotobacter is another free-living example.
Updated On: Oct 22, 2026
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Solution and Explanation
Step 1: Read the flow chart:
The chart shows biofertilizers divided into three boxes: A with the example Glomus, B with Azospirillum and C with Rhizobium.
Step 2: Part (a): identify A, B and C:
A is Fungi. Glomus is a fungus that forms mycorrhiza with plant roots. It helps the plant absorb phosphorus and water.
B is free-living (non-symbiotic) nitrogen-fixing bacteria. Azospirillum lives free in the soil and fixes atmospheric nitrogen.
C is symbiotic nitrogen-fixing bacteria. Rhizobium lives in root nodules of legumes and fixes nitrogen.
Step 3: Part (b): another example of B:
Azotobacter is another free-living nitrogen-fixing bacterium. It can be written as the example.
Final Answer:
A - Fungi (mycorrhiza), B - free-living nitrogen-fixing bacteria, C - symbiotic nitrogen-fixing bacteria. Another example of B: Azotobacter.
The chart shows biofertilizers divided into three boxes: A with the example Glomus, B with Azospirillum and C with Rhizobium.
Step 2: Part (a): identify A, B and C:
A is Fungi. Glomus is a fungus that forms mycorrhiza with plant roots. It helps the plant absorb phosphorus and water.
B is free-living (non-symbiotic) nitrogen-fixing bacteria. Azospirillum lives free in the soil and fixes atmospheric nitrogen.
C is symbiotic nitrogen-fixing bacteria. Rhizobium lives in root nodules of legumes and fixes nitrogen.
Step 3: Part (b): another example of B:
Azotobacter is another free-living nitrogen-fixing bacterium. It can be written as the example.
Final Answer:
A - Fungi (mycorrhiza), B - free-living nitrogen-fixing bacteria, C - symbiotic nitrogen-fixing bacteria. Another example of B: Azotobacter.
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