Rhizobium
Trending Questions
Q. Rhizobium can be found in the root nodules of which of the following plants?
- Carrot
- Soybean
- Pea
- Sweet potato
Q. Which one of the following shows symbiotic relationship with bean plants?
- Lactobacillus
- Saccharomyces
- Clostridium
- Rhizobium
Q.
Bacteria such as ____ can fix atmospheric nitrogen and convert it into usable nitrogenous compounds.
Q.
The process in which organic nitrogen is converted into ammonia is called _________.
- assimilation
nitrification
nitrogen fixation
- nitrogenization
Q.
A hypha-bearing sporangium is called ________.
Q. Which of the following statements hold true for Rhizobium?
- They are rod-shaped.
- They are round shaped.
- They are nitrogen fixers.
- They reside on roots of leguminous plants.
Q. Farmers coat the seeds of cereals with rhizobial solution. Why is this done?
- Rhizobium provides nitrogen to the plantlets.
- Rhizobium kills harmful microbes.
- Rhizobium helps in seed germination.
- Rhizobium provides oxygen to the seeds.
Q.
A substance used as a condiment is a symbiotic relationship between two organisms. Identify the organisms involved from the following.
- Antarctica is a very boring place and microbes do not like visiting Antarctica
Extreme low temperatures of Antarctica does not support microbial growth
- The salt-rich air in Antarctica is toxic to microbes
- Faecal matter of migratory birds has antimicrobial property
Q. Aashish took a thin root-section of fenugreek plant and observed it under the microscope after staining. He observed rod-shaped organisms in it. Which of the following microbe did he identify?
- Lactobacillus
- Yeast
- Clostridium
- Rhizobium
Q. The process of coating seeds of non-leguminous plants with powder or solution of nitrogen fixing bacteria is known as ____.
- nitrogen fixation
- bio-remediation
- rhizobial innoculation
- coagulation
Q.
Mycorrhiza is a ________ .
virus
cyanobacteria
bacteria
fungi
Q.
Rhizobium bacteria help in nitrogen fixation, but they cannot make their own food.
True
- False
Q.
What are the steps involved in formation of a root nodule?