Chlorophyll is the primary pigment involved in absorbing sunlight to capture energy for photosynthesis. Bacterial chlorophyll absorbs mainly infra red light. There are many different types of pigments in nature but chlorophyll is unique in its ability to enable plants to absorb energy to build tissues.
VMMC-2003
Biological Classification
258514
Bacteria in cold climate can live for:
1 few years
2 1,000 years
3 2, 000 years
4 many thousand year
Explanation:
Bacteria can survive thousands of years in cold climate. These microbes are called psychrophiles which means cold loving. They survive in extremely cold environments with the help of cold shock proteins.
AFMC-2001
Biological Classification
258517
Which one of the following is detrimental to soil fertility?
1 Saprophytic bacteria
2 Nitrosomes
3 Nitrobacter
4 Pseudomonas
Explanation:
The denitrifying bacteria are microorganisms whose actions results in the conversion of nitrates in soil to free atmospheric nitrogen, thus depleting soil fertility and reducing agricultural productivity. Hence, Pseudomonas are denitrifying bacteria.
KVPY SA-2015
Biological Classification
258521
Which of the following statements is not true for Nostoc?
1 It is prokaryotic
2 It is autotrophic
3 It is filamentous
4 It is macroscopic
Explanation:
Nostoc is a genus of blue-green algae or cyanobacteria. They are prokaryotic and perform photosynthesis. Nostoc are filamentous and unbranched. They have chlorophyll pigments. These pigments allows the organism to prepare its own food. They are autotrophic. Nostoc are the microscopic blue-green algae. Thus, the correct answer is option (d) because it is a microscopic not a macroscopic.
Chlorophyll is the primary pigment involved in absorbing sunlight to capture energy for photosynthesis. Bacterial chlorophyll absorbs mainly infra red light. There are many different types of pigments in nature but chlorophyll is unique in its ability to enable plants to absorb energy to build tissues.
VMMC-2003
Biological Classification
258514
Bacteria in cold climate can live for:
1 few years
2 1,000 years
3 2, 000 years
4 many thousand year
Explanation:
Bacteria can survive thousands of years in cold climate. These microbes are called psychrophiles which means cold loving. They survive in extremely cold environments with the help of cold shock proteins.
AFMC-2001
Biological Classification
258517
Which one of the following is detrimental to soil fertility?
1 Saprophytic bacteria
2 Nitrosomes
3 Nitrobacter
4 Pseudomonas
Explanation:
The denitrifying bacteria are microorganisms whose actions results in the conversion of nitrates in soil to free atmospheric nitrogen, thus depleting soil fertility and reducing agricultural productivity. Hence, Pseudomonas are denitrifying bacteria.
KVPY SA-2015
Biological Classification
258521
Which of the following statements is not true for Nostoc?
1 It is prokaryotic
2 It is autotrophic
3 It is filamentous
4 It is macroscopic
Explanation:
Nostoc is a genus of blue-green algae or cyanobacteria. They are prokaryotic and perform photosynthesis. Nostoc are filamentous and unbranched. They have chlorophyll pigments. These pigments allows the organism to prepare its own food. They are autotrophic. Nostoc are the microscopic blue-green algae. Thus, the correct answer is option (d) because it is a microscopic not a macroscopic.
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Biological Classification
258513
Bacterial chlorophyll absorbs mainly:
1 infra red light
2 visible light
3 UV rays
4 X-rays
Explanation:
Chlorophyll is the primary pigment involved in absorbing sunlight to capture energy for photosynthesis. Bacterial chlorophyll absorbs mainly infra red light. There are many different types of pigments in nature but chlorophyll is unique in its ability to enable plants to absorb energy to build tissues.
VMMC-2003
Biological Classification
258514
Bacteria in cold climate can live for:
1 few years
2 1,000 years
3 2, 000 years
4 many thousand year
Explanation:
Bacteria can survive thousands of years in cold climate. These microbes are called psychrophiles which means cold loving. They survive in extremely cold environments with the help of cold shock proteins.
AFMC-2001
Biological Classification
258517
Which one of the following is detrimental to soil fertility?
1 Saprophytic bacteria
2 Nitrosomes
3 Nitrobacter
4 Pseudomonas
Explanation:
The denitrifying bacteria are microorganisms whose actions results in the conversion of nitrates in soil to free atmospheric nitrogen, thus depleting soil fertility and reducing agricultural productivity. Hence, Pseudomonas are denitrifying bacteria.
KVPY SA-2015
Biological Classification
258521
Which of the following statements is not true for Nostoc?
1 It is prokaryotic
2 It is autotrophic
3 It is filamentous
4 It is macroscopic
Explanation:
Nostoc is a genus of blue-green algae or cyanobacteria. They are prokaryotic and perform photosynthesis. Nostoc are filamentous and unbranched. They have chlorophyll pigments. These pigments allows the organism to prepare its own food. They are autotrophic. Nostoc are the microscopic blue-green algae. Thus, the correct answer is option (d) because it is a microscopic not a macroscopic.
Chlorophyll is the primary pigment involved in absorbing sunlight to capture energy for photosynthesis. Bacterial chlorophyll absorbs mainly infra red light. There are many different types of pigments in nature but chlorophyll is unique in its ability to enable plants to absorb energy to build tissues.
VMMC-2003
Biological Classification
258514
Bacteria in cold climate can live for:
1 few years
2 1,000 years
3 2, 000 years
4 many thousand year
Explanation:
Bacteria can survive thousands of years in cold climate. These microbes are called psychrophiles which means cold loving. They survive in extremely cold environments with the help of cold shock proteins.
AFMC-2001
Biological Classification
258517
Which one of the following is detrimental to soil fertility?
1 Saprophytic bacteria
2 Nitrosomes
3 Nitrobacter
4 Pseudomonas
Explanation:
The denitrifying bacteria are microorganisms whose actions results in the conversion of nitrates in soil to free atmospheric nitrogen, thus depleting soil fertility and reducing agricultural productivity. Hence, Pseudomonas are denitrifying bacteria.
KVPY SA-2015
Biological Classification
258521
Which of the following statements is not true for Nostoc?
1 It is prokaryotic
2 It is autotrophic
3 It is filamentous
4 It is macroscopic
Explanation:
Nostoc is a genus of blue-green algae or cyanobacteria. They are prokaryotic and perform photosynthesis. Nostoc are filamentous and unbranched. They have chlorophyll pigments. These pigments allows the organism to prepare its own food. They are autotrophic. Nostoc are the microscopic blue-green algae. Thus, the correct answer is option (d) because it is a microscopic not a macroscopic.