Rhizobium leguminosarum is the bacteria that live in symbiotic association with the root nodules of the leguminous plants. - Fixation of nitrogen cannot be done independently. - Nitrogen fixation helps in increasing soil productivity and soil fertility. - Rhizobium infects the roots of leguminous plants. They are usually found in the soil and produce nodules after infecting the roots of the leguminous plants.
DUMET-2009
Biological Classification
258507
Which of the following bacteria is found in colon of human?
1 E. coli
2 M. tuberculosis
3 C. botulinum
4 Azotobacter
Explanation:
Escherichia coli is a Gram-negative rod shape bacteria. - It is commonly found in the lower intestine of warm blooded organism. - It is peritrichous bacteria i.e. flagella are present in the whole body. - E. coli has several practical uses besides its use as a vector for genetic experiments and processes.
VMMC-2010
Biological Classification
258510
Cyanobacteria differs from other groups of bacteria in their
1 DNA
2 Cell wall
3 Nutrition
4 Reproduction
Explanation:
Cyanobacteria known as blue-green algae. They are photosynthetic, microscopic organisms that are technically bacteria. - Cyanobacteria possess chlorophyll- a while most bacteria do not contain chlorophyll. - Bacteria are mainly heterotrophs while the Cyanobacteria are autotrophs. - Both bacteria and cyanobacteria are prokaryotes. - Cyanobacteria are Gram-negative bacteria.
CG PMT-2010
Biological Classification
258512
Which type of ribosomes are found in Nostoc cells?
1 $50 \mathrm{~S}$
2 $60 \mathrm{~S}$
3 $70 \mathrm{~S}$
4 $80 \mathrm{~S}$
Explanation:
Prokaryotes contains $70 \mathrm{~S}$ ribosomes while eukaryotes have $80 \mathrm{~S}$ ribosomes. The cytoplasmic ribosomes of prokaryotes (blue-green algae, bacteria and PPLO) are 70S. - Nostoc is a prokaryotic organism, 70S ribosome are mainly found.
Rhizobium leguminosarum is the bacteria that live in symbiotic association with the root nodules of the leguminous plants. - Fixation of nitrogen cannot be done independently. - Nitrogen fixation helps in increasing soil productivity and soil fertility. - Rhizobium infects the roots of leguminous plants. They are usually found in the soil and produce nodules after infecting the roots of the leguminous plants.
DUMET-2009
Biological Classification
258507
Which of the following bacteria is found in colon of human?
1 E. coli
2 M. tuberculosis
3 C. botulinum
4 Azotobacter
Explanation:
Escherichia coli is a Gram-negative rod shape bacteria. - It is commonly found in the lower intestine of warm blooded organism. - It is peritrichous bacteria i.e. flagella are present in the whole body. - E. coli has several practical uses besides its use as a vector for genetic experiments and processes.
VMMC-2010
Biological Classification
258510
Cyanobacteria differs from other groups of bacteria in their
1 DNA
2 Cell wall
3 Nutrition
4 Reproduction
Explanation:
Cyanobacteria known as blue-green algae. They are photosynthetic, microscopic organisms that are technically bacteria. - Cyanobacteria possess chlorophyll- a while most bacteria do not contain chlorophyll. - Bacteria are mainly heterotrophs while the Cyanobacteria are autotrophs. - Both bacteria and cyanobacteria are prokaryotes. - Cyanobacteria are Gram-negative bacteria.
CG PMT-2010
Biological Classification
258512
Which type of ribosomes are found in Nostoc cells?
1 $50 \mathrm{~S}$
2 $60 \mathrm{~S}$
3 $70 \mathrm{~S}$
4 $80 \mathrm{~S}$
Explanation:
Prokaryotes contains $70 \mathrm{~S}$ ribosomes while eukaryotes have $80 \mathrm{~S}$ ribosomes. The cytoplasmic ribosomes of prokaryotes (blue-green algae, bacteria and PPLO) are 70S. - Nostoc is a prokaryotic organism, 70S ribosome are mainly found.
Rhizobium leguminosarum is the bacteria that live in symbiotic association with the root nodules of the leguminous plants. - Fixation of nitrogen cannot be done independently. - Nitrogen fixation helps in increasing soil productivity and soil fertility. - Rhizobium infects the roots of leguminous plants. They are usually found in the soil and produce nodules after infecting the roots of the leguminous plants.
DUMET-2009
Biological Classification
258507
Which of the following bacteria is found in colon of human?
1 E. coli
2 M. tuberculosis
3 C. botulinum
4 Azotobacter
Explanation:
Escherichia coli is a Gram-negative rod shape bacteria. - It is commonly found in the lower intestine of warm blooded organism. - It is peritrichous bacteria i.e. flagella are present in the whole body. - E. coli has several practical uses besides its use as a vector for genetic experiments and processes.
VMMC-2010
Biological Classification
258510
Cyanobacteria differs from other groups of bacteria in their
1 DNA
2 Cell wall
3 Nutrition
4 Reproduction
Explanation:
Cyanobacteria known as blue-green algae. They are photosynthetic, microscopic organisms that are technically bacteria. - Cyanobacteria possess chlorophyll- a while most bacteria do not contain chlorophyll. - Bacteria are mainly heterotrophs while the Cyanobacteria are autotrophs. - Both bacteria and cyanobacteria are prokaryotes. - Cyanobacteria are Gram-negative bacteria.
CG PMT-2010
Biological Classification
258512
Which type of ribosomes are found in Nostoc cells?
1 $50 \mathrm{~S}$
2 $60 \mathrm{~S}$
3 $70 \mathrm{~S}$
4 $80 \mathrm{~S}$
Explanation:
Prokaryotes contains $70 \mathrm{~S}$ ribosomes while eukaryotes have $80 \mathrm{~S}$ ribosomes. The cytoplasmic ribosomes of prokaryotes (blue-green algae, bacteria and PPLO) are 70S. - Nostoc is a prokaryotic organism, 70S ribosome are mainly found.
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Biological Classification
258506
An example for symbiotic bacteria
1 Erwinia amylovora
2 Rhizobium leguminosarum
3 Xanthomonas campestris
4 Agrobacterium tumefaciens
Explanation:
Rhizobium leguminosarum is the bacteria that live in symbiotic association with the root nodules of the leguminous plants. - Fixation of nitrogen cannot be done independently. - Nitrogen fixation helps in increasing soil productivity and soil fertility. - Rhizobium infects the roots of leguminous plants. They are usually found in the soil and produce nodules after infecting the roots of the leguminous plants.
DUMET-2009
Biological Classification
258507
Which of the following bacteria is found in colon of human?
1 E. coli
2 M. tuberculosis
3 C. botulinum
4 Azotobacter
Explanation:
Escherichia coli is a Gram-negative rod shape bacteria. - It is commonly found in the lower intestine of warm blooded organism. - It is peritrichous bacteria i.e. flagella are present in the whole body. - E. coli has several practical uses besides its use as a vector for genetic experiments and processes.
VMMC-2010
Biological Classification
258510
Cyanobacteria differs from other groups of bacteria in their
1 DNA
2 Cell wall
3 Nutrition
4 Reproduction
Explanation:
Cyanobacteria known as blue-green algae. They are photosynthetic, microscopic organisms that are technically bacteria. - Cyanobacteria possess chlorophyll- a while most bacteria do not contain chlorophyll. - Bacteria are mainly heterotrophs while the Cyanobacteria are autotrophs. - Both bacteria and cyanobacteria are prokaryotes. - Cyanobacteria are Gram-negative bacteria.
CG PMT-2010
Biological Classification
258512
Which type of ribosomes are found in Nostoc cells?
1 $50 \mathrm{~S}$
2 $60 \mathrm{~S}$
3 $70 \mathrm{~S}$
4 $80 \mathrm{~S}$
Explanation:
Prokaryotes contains $70 \mathrm{~S}$ ribosomes while eukaryotes have $80 \mathrm{~S}$ ribosomes. The cytoplasmic ribosomes of prokaryotes (blue-green algae, bacteria and PPLO) are 70S. - Nostoc is a prokaryotic organism, 70S ribosome are mainly found.
