258315
A large number of organic compounds can be decomposed by:
1 Azotobacter
2 Chemolithotrophs
3 Mycoplasma
4 Pseudomonas
Explanation:
Chemolithotrophs:- A cell's acquisition of energy from the oxidation of inorganic compounds, also known as electron donors. It can drive the energy required for growth from the oxidation of inorganic components. Thus, a large number of organic compounds can be decomposed by chemolithotrophs.
AIPMT-1995
Biological Classification
258316
What are the sex organs provided in some bacteria?
1 Sex pili
2 Plasmid
3 Circular DNA
4 Gametes
Explanation:
Sex pili are tiny, non flagellar hair- like structure that are present on Gram negative bacteria and a few Gram positive bacteria have on their walls. During conjugation, they serve as sex organs and create the conjugation tube. Therefore, the sex organs provided in some bacteria are sex pili.
AIPMT-1996
Biological Classification
258317
Azotobacter and Bacillus polymyxa are the examples of:
1 pathogenic bacteria
2 decomposers
3 symbiotic $\mathrm{N}_{2}$ fixer
4 non-symbiotic $\mathrm{N}_{2}$ fixer
Explanation:
Azotobacter and Bacillus polymyxa are the examples of non-symbiotic $\mathrm{N}_{2}$ fixers. - Azotobacter is aerobic because it can strictly live only in the presence of oxygen. - Bacillus polymyxa, is a gram-positive bacterium capable of fixing nitrogen. - Rhizobium is an example for symbiotic nitrogen fixer.
AIPMT-1996
Biological Classification
258319
Assign the following substances to the cell wall, flagella, 's' layer and pili of bacteria in correct sequence i. Glycoprotein ii. Fimbrin/Pilin iii. Teichoic acid iv. Flagellin The correct sequence is
1 iii, i, iv, ii
2 iii, iv, i, ii
3 ii, iv, iii, i
4 iii, iv, ii, i
Explanation:
The cell wall component of a Gram-positive bacteria is teichoic acids which is linked to Nacetylmuramic acid or terminal D-alanine in the crosslinkage between $\mathrm{N}$-acetylmuramic acid units of the peptidoglycan layer. - The bacterial flagellum is made up of the protein flagellin. The S-layer is also known as surface layer which is a part of the cell envelop of bacterial. It is composed of glycoproteins whereas pilli is a hair-like appendage which is composed of pilin protein also known as fimbrin.
258315
A large number of organic compounds can be decomposed by:
1 Azotobacter
2 Chemolithotrophs
3 Mycoplasma
4 Pseudomonas
Explanation:
Chemolithotrophs:- A cell's acquisition of energy from the oxidation of inorganic compounds, also known as electron donors. It can drive the energy required for growth from the oxidation of inorganic components. Thus, a large number of organic compounds can be decomposed by chemolithotrophs.
AIPMT-1995
Biological Classification
258316
What are the sex organs provided in some bacteria?
1 Sex pili
2 Plasmid
3 Circular DNA
4 Gametes
Explanation:
Sex pili are tiny, non flagellar hair- like structure that are present on Gram negative bacteria and a few Gram positive bacteria have on their walls. During conjugation, they serve as sex organs and create the conjugation tube. Therefore, the sex organs provided in some bacteria are sex pili.
AIPMT-1996
Biological Classification
258317
Azotobacter and Bacillus polymyxa are the examples of:
1 pathogenic bacteria
2 decomposers
3 symbiotic $\mathrm{N}_{2}$ fixer
4 non-symbiotic $\mathrm{N}_{2}$ fixer
Explanation:
Azotobacter and Bacillus polymyxa are the examples of non-symbiotic $\mathrm{N}_{2}$ fixers. - Azotobacter is aerobic because it can strictly live only in the presence of oxygen. - Bacillus polymyxa, is a gram-positive bacterium capable of fixing nitrogen. - Rhizobium is an example for symbiotic nitrogen fixer.
AIPMT-1996
Biological Classification
258319
Assign the following substances to the cell wall, flagella, 's' layer and pili of bacteria in correct sequence i. Glycoprotein ii. Fimbrin/Pilin iii. Teichoic acid iv. Flagellin The correct sequence is
1 iii, i, iv, ii
2 iii, iv, i, ii
3 ii, iv, iii, i
4 iii, iv, ii, i
Explanation:
The cell wall component of a Gram-positive bacteria is teichoic acids which is linked to Nacetylmuramic acid or terminal D-alanine in the crosslinkage between $\mathrm{N}$-acetylmuramic acid units of the peptidoglycan layer. - The bacterial flagellum is made up of the protein flagellin. The S-layer is also known as surface layer which is a part of the cell envelop of bacterial. It is composed of glycoproteins whereas pilli is a hair-like appendage which is composed of pilin protein also known as fimbrin.
258315
A large number of organic compounds can be decomposed by:
1 Azotobacter
2 Chemolithotrophs
3 Mycoplasma
4 Pseudomonas
Explanation:
Chemolithotrophs:- A cell's acquisition of energy from the oxidation of inorganic compounds, also known as electron donors. It can drive the energy required for growth from the oxidation of inorganic components. Thus, a large number of organic compounds can be decomposed by chemolithotrophs.
AIPMT-1995
Biological Classification
258316
What are the sex organs provided in some bacteria?
1 Sex pili
2 Plasmid
3 Circular DNA
4 Gametes
Explanation:
Sex pili are tiny, non flagellar hair- like structure that are present on Gram negative bacteria and a few Gram positive bacteria have on their walls. During conjugation, they serve as sex organs and create the conjugation tube. Therefore, the sex organs provided in some bacteria are sex pili.
AIPMT-1996
Biological Classification
258317
Azotobacter and Bacillus polymyxa are the examples of:
1 pathogenic bacteria
2 decomposers
3 symbiotic $\mathrm{N}_{2}$ fixer
4 non-symbiotic $\mathrm{N}_{2}$ fixer
Explanation:
Azotobacter and Bacillus polymyxa are the examples of non-symbiotic $\mathrm{N}_{2}$ fixers. - Azotobacter is aerobic because it can strictly live only in the presence of oxygen. - Bacillus polymyxa, is a gram-positive bacterium capable of fixing nitrogen. - Rhizobium is an example for symbiotic nitrogen fixer.
AIPMT-1996
Biological Classification
258319
Assign the following substances to the cell wall, flagella, 's' layer and pili of bacteria in correct sequence i. Glycoprotein ii. Fimbrin/Pilin iii. Teichoic acid iv. Flagellin The correct sequence is
1 iii, i, iv, ii
2 iii, iv, i, ii
3 ii, iv, iii, i
4 iii, iv, ii, i
Explanation:
The cell wall component of a Gram-positive bacteria is teichoic acids which is linked to Nacetylmuramic acid or terminal D-alanine in the crosslinkage between $\mathrm{N}$-acetylmuramic acid units of the peptidoglycan layer. - The bacterial flagellum is made up of the protein flagellin. The S-layer is also known as surface layer which is a part of the cell envelop of bacterial. It is composed of glycoproteins whereas pilli is a hair-like appendage which is composed of pilin protein also known as fimbrin.
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Biological Classification
258315
A large number of organic compounds can be decomposed by:
1 Azotobacter
2 Chemolithotrophs
3 Mycoplasma
4 Pseudomonas
Explanation:
Chemolithotrophs:- A cell's acquisition of energy from the oxidation of inorganic compounds, also known as electron donors. It can drive the energy required for growth from the oxidation of inorganic components. Thus, a large number of organic compounds can be decomposed by chemolithotrophs.
AIPMT-1995
Biological Classification
258316
What are the sex organs provided in some bacteria?
1 Sex pili
2 Plasmid
3 Circular DNA
4 Gametes
Explanation:
Sex pili are tiny, non flagellar hair- like structure that are present on Gram negative bacteria and a few Gram positive bacteria have on their walls. During conjugation, they serve as sex organs and create the conjugation tube. Therefore, the sex organs provided in some bacteria are sex pili.
AIPMT-1996
Biological Classification
258317
Azotobacter and Bacillus polymyxa are the examples of:
1 pathogenic bacteria
2 decomposers
3 symbiotic $\mathrm{N}_{2}$ fixer
4 non-symbiotic $\mathrm{N}_{2}$ fixer
Explanation:
Azotobacter and Bacillus polymyxa are the examples of non-symbiotic $\mathrm{N}_{2}$ fixers. - Azotobacter is aerobic because it can strictly live only in the presence of oxygen. - Bacillus polymyxa, is a gram-positive bacterium capable of fixing nitrogen. - Rhizobium is an example for symbiotic nitrogen fixer.
AIPMT-1996
Biological Classification
258319
Assign the following substances to the cell wall, flagella, 's' layer and pili of bacteria in correct sequence i. Glycoprotein ii. Fimbrin/Pilin iii. Teichoic acid iv. Flagellin The correct sequence is
1 iii, i, iv, ii
2 iii, iv, i, ii
3 ii, iv, iii, i
4 iii, iv, ii, i
Explanation:
The cell wall component of a Gram-positive bacteria is teichoic acids which is linked to Nacetylmuramic acid or terminal D-alanine in the crosslinkage between $\mathrm{N}$-acetylmuramic acid units of the peptidoglycan layer. - The bacterial flagellum is made up of the protein flagellin. The S-layer is also known as surface layer which is a part of the cell envelop of bacterial. It is composed of glycoproteins whereas pilli is a hair-like appendage which is composed of pilin protein also known as fimbrin.
