258349
In purple and green bacteria, oxygen is not evolved during photosynthesis because hydrogen donor is
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{H}_{2} \mathrm{~S}$
3 $\mathrm{NH}_{3}$
4 $\mathrm{CH}_{4}$
Explanation:
In purple and green bacteria oxygen is not evolved during photosynthesis because $\mathrm{H}_{2} \mathrm{~S}$ serves as a hydrogen donor in purple and green sulphur bacteria.
AMU-2014
Biological Classification
258350
The plasma membrane of mycoplasma is rich in
1 cellulose
2 cholesterol
3 myosin
4 glycogen
Explanation:
Mycoplasma belongs to the genus bacteria that has a plasma membrane that is rich in cholestrol and includes a significant quantity of fatty acids but lacks a cell wall around its cell membrane.
Punjab MET-2011
Biological Classification
258351
The characteristic of blue-green algae is :
1 DNA without histone
2 nuclear membrane absent
3 70 s ribosomes
4 all of the above
Explanation:
Blue green algae or Cynobacteria is a unicellular, prokaryotic organism. It does not have well defined nucleus. The DNA is not present inside the nucleus (means the DNA is naked) rather it is present into each cytoplasm (not enclosed by the nuclear membrane ) DNA has no histone protein. It consists of $70 \mathrm{~S}$ ribosome.
Rajasthan PMT-2002 JCECE-2003
Biological Classification
258352
Gram negative bacteria are resistant due to presence of
1 teichoic acid
2 lipopolysaccharides
3 chitin
4 cellulose
Explanation:
In gram negative bacteria out side of the peptidoglycan other layer is lipopolysaccharide due to which Gram negative bacteria are resistant to antibiotic. - Teichoic acid present in Gram-positive bacteria.
UP CPMT-2012
Biological Classification
258354
The organism which completely lack a cell wall and can live without oxygen are
1 Archaebacteria
2 Thermoacidophiles
3 Mycoplasmas
4 Methanogens
Explanation:
Mycoplamsma, it is unicellular smallest prokaryotic cell. Cell wall absent and cell membrane made up of lipoprotiens. Cell organelles are absent like mitochondria, golgibodies, endoplasmic reticulum, lysosome and mesosomes.
258349
In purple and green bacteria, oxygen is not evolved during photosynthesis because hydrogen donor is
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{H}_{2} \mathrm{~S}$
3 $\mathrm{NH}_{3}$
4 $\mathrm{CH}_{4}$
Explanation:
In purple and green bacteria oxygen is not evolved during photosynthesis because $\mathrm{H}_{2} \mathrm{~S}$ serves as a hydrogen donor in purple and green sulphur bacteria.
AMU-2014
Biological Classification
258350
The plasma membrane of mycoplasma is rich in
1 cellulose
2 cholesterol
3 myosin
4 glycogen
Explanation:
Mycoplasma belongs to the genus bacteria that has a plasma membrane that is rich in cholestrol and includes a significant quantity of fatty acids but lacks a cell wall around its cell membrane.
Punjab MET-2011
Biological Classification
258351
The characteristic of blue-green algae is :
1 DNA without histone
2 nuclear membrane absent
3 70 s ribosomes
4 all of the above
Explanation:
Blue green algae or Cynobacteria is a unicellular, prokaryotic organism. It does not have well defined nucleus. The DNA is not present inside the nucleus (means the DNA is naked) rather it is present into each cytoplasm (not enclosed by the nuclear membrane ) DNA has no histone protein. It consists of $70 \mathrm{~S}$ ribosome.
Rajasthan PMT-2002 JCECE-2003
Biological Classification
258352
Gram negative bacteria are resistant due to presence of
1 teichoic acid
2 lipopolysaccharides
3 chitin
4 cellulose
Explanation:
In gram negative bacteria out side of the peptidoglycan other layer is lipopolysaccharide due to which Gram negative bacteria are resistant to antibiotic. - Teichoic acid present in Gram-positive bacteria.
UP CPMT-2012
Biological Classification
258354
The organism which completely lack a cell wall and can live without oxygen are
1 Archaebacteria
2 Thermoacidophiles
3 Mycoplasmas
4 Methanogens
Explanation:
Mycoplamsma, it is unicellular smallest prokaryotic cell. Cell wall absent and cell membrane made up of lipoprotiens. Cell organelles are absent like mitochondria, golgibodies, endoplasmic reticulum, lysosome and mesosomes.
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Biological Classification
258349
In purple and green bacteria, oxygen is not evolved during photosynthesis because hydrogen donor is
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{H}_{2} \mathrm{~S}$
3 $\mathrm{NH}_{3}$
4 $\mathrm{CH}_{4}$
Explanation:
In purple and green bacteria oxygen is not evolved during photosynthesis because $\mathrm{H}_{2} \mathrm{~S}$ serves as a hydrogen donor in purple and green sulphur bacteria.
AMU-2014
Biological Classification
258350
The plasma membrane of mycoplasma is rich in
1 cellulose
2 cholesterol
3 myosin
4 glycogen
Explanation:
Mycoplasma belongs to the genus bacteria that has a plasma membrane that is rich in cholestrol and includes a significant quantity of fatty acids but lacks a cell wall around its cell membrane.
Punjab MET-2011
Biological Classification
258351
The characteristic of blue-green algae is :
1 DNA without histone
2 nuclear membrane absent
3 70 s ribosomes
4 all of the above
Explanation:
Blue green algae or Cynobacteria is a unicellular, prokaryotic organism. It does not have well defined nucleus. The DNA is not present inside the nucleus (means the DNA is naked) rather it is present into each cytoplasm (not enclosed by the nuclear membrane ) DNA has no histone protein. It consists of $70 \mathrm{~S}$ ribosome.
Rajasthan PMT-2002 JCECE-2003
Biological Classification
258352
Gram negative bacteria are resistant due to presence of
1 teichoic acid
2 lipopolysaccharides
3 chitin
4 cellulose
Explanation:
In gram negative bacteria out side of the peptidoglycan other layer is lipopolysaccharide due to which Gram negative bacteria are resistant to antibiotic. - Teichoic acid present in Gram-positive bacteria.
UP CPMT-2012
Biological Classification
258354
The organism which completely lack a cell wall and can live without oxygen are
1 Archaebacteria
2 Thermoacidophiles
3 Mycoplasmas
4 Methanogens
Explanation:
Mycoplamsma, it is unicellular smallest prokaryotic cell. Cell wall absent and cell membrane made up of lipoprotiens. Cell organelles are absent like mitochondria, golgibodies, endoplasmic reticulum, lysosome and mesosomes.
258349
In purple and green bacteria, oxygen is not evolved during photosynthesis because hydrogen donor is
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{H}_{2} \mathrm{~S}$
3 $\mathrm{NH}_{3}$
4 $\mathrm{CH}_{4}$
Explanation:
In purple and green bacteria oxygen is not evolved during photosynthesis because $\mathrm{H}_{2} \mathrm{~S}$ serves as a hydrogen donor in purple and green sulphur bacteria.
AMU-2014
Biological Classification
258350
The plasma membrane of mycoplasma is rich in
1 cellulose
2 cholesterol
3 myosin
4 glycogen
Explanation:
Mycoplasma belongs to the genus bacteria that has a plasma membrane that is rich in cholestrol and includes a significant quantity of fatty acids but lacks a cell wall around its cell membrane.
Punjab MET-2011
Biological Classification
258351
The characteristic of blue-green algae is :
1 DNA without histone
2 nuclear membrane absent
3 70 s ribosomes
4 all of the above
Explanation:
Blue green algae or Cynobacteria is a unicellular, prokaryotic organism. It does not have well defined nucleus. The DNA is not present inside the nucleus (means the DNA is naked) rather it is present into each cytoplasm (not enclosed by the nuclear membrane ) DNA has no histone protein. It consists of $70 \mathrm{~S}$ ribosome.
Rajasthan PMT-2002 JCECE-2003
Biological Classification
258352
Gram negative bacteria are resistant due to presence of
1 teichoic acid
2 lipopolysaccharides
3 chitin
4 cellulose
Explanation:
In gram negative bacteria out side of the peptidoglycan other layer is lipopolysaccharide due to which Gram negative bacteria are resistant to antibiotic. - Teichoic acid present in Gram-positive bacteria.
UP CPMT-2012
Biological Classification
258354
The organism which completely lack a cell wall and can live without oxygen are
1 Archaebacteria
2 Thermoacidophiles
3 Mycoplasmas
4 Methanogens
Explanation:
Mycoplamsma, it is unicellular smallest prokaryotic cell. Cell wall absent and cell membrane made up of lipoprotiens. Cell organelles are absent like mitochondria, golgibodies, endoplasmic reticulum, lysosome and mesosomes.
258349
In purple and green bacteria, oxygen is not evolved during photosynthesis because hydrogen donor is
1 $\mathrm{H}_{2} \mathrm{O}$
2 $\mathrm{H}_{2} \mathrm{~S}$
3 $\mathrm{NH}_{3}$
4 $\mathrm{CH}_{4}$
Explanation:
In purple and green bacteria oxygen is not evolved during photosynthesis because $\mathrm{H}_{2} \mathrm{~S}$ serves as a hydrogen donor in purple and green sulphur bacteria.
AMU-2014
Biological Classification
258350
The plasma membrane of mycoplasma is rich in
1 cellulose
2 cholesterol
3 myosin
4 glycogen
Explanation:
Mycoplasma belongs to the genus bacteria that has a plasma membrane that is rich in cholestrol and includes a significant quantity of fatty acids but lacks a cell wall around its cell membrane.
Punjab MET-2011
Biological Classification
258351
The characteristic of blue-green algae is :
1 DNA without histone
2 nuclear membrane absent
3 70 s ribosomes
4 all of the above
Explanation:
Blue green algae or Cynobacteria is a unicellular, prokaryotic organism. It does not have well defined nucleus. The DNA is not present inside the nucleus (means the DNA is naked) rather it is present into each cytoplasm (not enclosed by the nuclear membrane ) DNA has no histone protein. It consists of $70 \mathrm{~S}$ ribosome.
Rajasthan PMT-2002 JCECE-2003
Biological Classification
258352
Gram negative bacteria are resistant due to presence of
1 teichoic acid
2 lipopolysaccharides
3 chitin
4 cellulose
Explanation:
In gram negative bacteria out side of the peptidoglycan other layer is lipopolysaccharide due to which Gram negative bacteria are resistant to antibiotic. - Teichoic acid present in Gram-positive bacteria.
UP CPMT-2012
Biological Classification
258354
The organism which completely lack a cell wall and can live without oxygen are
1 Archaebacteria
2 Thermoacidophiles
3 Mycoplasmas
4 Methanogens
Explanation:
Mycoplamsma, it is unicellular smallest prokaryotic cell. Cell wall absent and cell membrane made up of lipoprotiens. Cell organelles are absent like mitochondria, golgibodies, endoplasmic reticulum, lysosome and mesosomes.