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प्रश्न
Define chemoautotrophs.
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उत्तर
Chemoautotrophs are those who make their own food by deriving the energy from chemical reactions. e.g., Nitrifying bacteria, Iron bacteria etc.
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संबंधित प्रश्न
Give the schematic representation of the TCA cycle.
Write a note on nitrogen fixation?
Very Short Answer Question:
What is denitrification?
Which of the following is TRUE regarding Rhizobium?
Match Column - I with Column - II.
| Column - I | Column - II | ||
| (a) | Nitrococcus | (i) | Denitrification |
| (b) | Rhizobium | (ii) | Conversion of ammonia to nitrite |
| (c) | Thiobacillus | (iii) | Conversion of nitrite to nitrate |
| (d) | Nitrobacter | (iv) | Conversion of atmospheric nitrogen to ammonia |
Choose the correct answer from the options given below.
The bacteria present in the root nodules of leguminous plants is ______.
Nitrogen is an essential component of protein, DNA, and chlorophyll.
Assertion (A): Plants and animals can utilize atmospheric nitrogen.
Reason (R): The atmosphere is a rich source of nitrogen.
How are organisms like Pseudomonas and Thiobacillus of great significance in nitrogen cycle?
Match column I with Column II.
| Column I | Column II |
| A Acidic | (i) Phenylalanine (Phe) |
| B Neutral | (ii) Cysteine (Cys) |
| C Aromatic | (iii) Valine (Val) |
| D S(Sulphur) containing | (iv) Asparagine (Asn) |
Select the correct answer from the options given below.
