267249
Which of the following statement(s) is correct for both blue-green algae and bacteria?
1 Both show anaerobic respiration.
2 Both have chlorophyll pigment.
3 Both are devoid oftrue nucleus.
4 None of the above
Explanation:
(c) Cyanobacterial cells (blue-green algal cells) are larger and more elaborate than bacteria. In both the organisms the cell structure is typically prokaryotic type one envelope organisation with peptidoglycan wall, naked DNA, Blue-Green algae have chlorophyll, bacteria is devoid of chlorophyll.
NCERT Page-19 / N-13
Biological Classification
267250
Which of the following statement(s) is/ are correct for bacteria?
1 They are the members of the kingdommonera.
2 They live in extreme habitats such as hot springs, deserts, snow and deep oceans.
3 They show the most extensive metabolic diversity.
4 All of the above
Explanation:
(d) Bacteria are microscopic organisms placed under kingdom monera whose single cells have neither a membrane-enclosed nucleus nor other membraneenclosed organelles like mitochondria and chloroplasts.
NCERT Page-18
Biological Classification
267251
Which of the following statements regarding cyanobacteria is incorrect?
1 Itis also called blue green algae.
2 They are chemosynthetic autotrophs.
3 It forms blooms in polluted water bodies.
4 It is unicellular, colonial or filamentous, marine or terrestrial bacteria.
Explanation:
(b) Cyanobacteria are photosynthetic (containing a blue photosynthetic pigment) autotrophs. They are prokaryotic and represent the earliest known form of life on the Earth.
NCERT Page-18
Biological Classification
267252
Which of the following component enablesarchaebacteria to survive in extreme conditions?
1 Cell wall
2 Cell membrane
3 Membrane proteins
4 Ion exchange pumps
Explanation:
(a) Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions.
267249
Which of the following statement(s) is correct for both blue-green algae and bacteria?
1 Both show anaerobic respiration.
2 Both have chlorophyll pigment.
3 Both are devoid oftrue nucleus.
4 None of the above
Explanation:
(c) Cyanobacterial cells (blue-green algal cells) are larger and more elaborate than bacteria. In both the organisms the cell structure is typically prokaryotic type one envelope organisation with peptidoglycan wall, naked DNA, Blue-Green algae have chlorophyll, bacteria is devoid of chlorophyll.
NCERT Page-19 / N-13
Biological Classification
267250
Which of the following statement(s) is/ are correct for bacteria?
1 They are the members of the kingdommonera.
2 They live in extreme habitats such as hot springs, deserts, snow and deep oceans.
3 They show the most extensive metabolic diversity.
4 All of the above
Explanation:
(d) Bacteria are microscopic organisms placed under kingdom monera whose single cells have neither a membrane-enclosed nucleus nor other membraneenclosed organelles like mitochondria and chloroplasts.
NCERT Page-18
Biological Classification
267251
Which of the following statements regarding cyanobacteria is incorrect?
1 Itis also called blue green algae.
2 They are chemosynthetic autotrophs.
3 It forms blooms in polluted water bodies.
4 It is unicellular, colonial or filamentous, marine or terrestrial bacteria.
Explanation:
(b) Cyanobacteria are photosynthetic (containing a blue photosynthetic pigment) autotrophs. They are prokaryotic and represent the earliest known form of life on the Earth.
NCERT Page-18
Biological Classification
267252
Which of the following component enablesarchaebacteria to survive in extreme conditions?
1 Cell wall
2 Cell membrane
3 Membrane proteins
4 Ion exchange pumps
Explanation:
(a) Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions.
267249
Which of the following statement(s) is correct for both blue-green algae and bacteria?
1 Both show anaerobic respiration.
2 Both have chlorophyll pigment.
3 Both are devoid oftrue nucleus.
4 None of the above
Explanation:
(c) Cyanobacterial cells (blue-green algal cells) are larger and more elaborate than bacteria. In both the organisms the cell structure is typically prokaryotic type one envelope organisation with peptidoglycan wall, naked DNA, Blue-Green algae have chlorophyll, bacteria is devoid of chlorophyll.
NCERT Page-19 / N-13
Biological Classification
267250
Which of the following statement(s) is/ are correct for bacteria?
1 They are the members of the kingdommonera.
2 They live in extreme habitats such as hot springs, deserts, snow and deep oceans.
3 They show the most extensive metabolic diversity.
4 All of the above
Explanation:
(d) Bacteria are microscopic organisms placed under kingdom monera whose single cells have neither a membrane-enclosed nucleus nor other membraneenclosed organelles like mitochondria and chloroplasts.
NCERT Page-18
Biological Classification
267251
Which of the following statements regarding cyanobacteria is incorrect?
1 Itis also called blue green algae.
2 They are chemosynthetic autotrophs.
3 It forms blooms in polluted water bodies.
4 It is unicellular, colonial or filamentous, marine or terrestrial bacteria.
Explanation:
(b) Cyanobacteria are photosynthetic (containing a blue photosynthetic pigment) autotrophs. They are prokaryotic and represent the earliest known form of life on the Earth.
NCERT Page-18
Biological Classification
267252
Which of the following component enablesarchaebacteria to survive in extreme conditions?
1 Cell wall
2 Cell membrane
3 Membrane proteins
4 Ion exchange pumps
Explanation:
(a) Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions.
267249
Which of the following statement(s) is correct for both blue-green algae and bacteria?
1 Both show anaerobic respiration.
2 Both have chlorophyll pigment.
3 Both are devoid oftrue nucleus.
4 None of the above
Explanation:
(c) Cyanobacterial cells (blue-green algal cells) are larger and more elaborate than bacteria. In both the organisms the cell structure is typically prokaryotic type one envelope organisation with peptidoglycan wall, naked DNA, Blue-Green algae have chlorophyll, bacteria is devoid of chlorophyll.
NCERT Page-19 / N-13
Biological Classification
267250
Which of the following statement(s) is/ are correct for bacteria?
1 They are the members of the kingdommonera.
2 They live in extreme habitats such as hot springs, deserts, snow and deep oceans.
3 They show the most extensive metabolic diversity.
4 All of the above
Explanation:
(d) Bacteria are microscopic organisms placed under kingdom monera whose single cells have neither a membrane-enclosed nucleus nor other membraneenclosed organelles like mitochondria and chloroplasts.
NCERT Page-18
Biological Classification
267251
Which of the following statements regarding cyanobacteria is incorrect?
1 Itis also called blue green algae.
2 They are chemosynthetic autotrophs.
3 It forms blooms in polluted water bodies.
4 It is unicellular, colonial or filamentous, marine or terrestrial bacteria.
Explanation:
(b) Cyanobacteria are photosynthetic (containing a blue photosynthetic pigment) autotrophs. They are prokaryotic and represent the earliest known form of life on the Earth.
NCERT Page-18
Biological Classification
267252
Which of the following component enablesarchaebacteria to survive in extreme conditions?
1 Cell wall
2 Cell membrane
3 Membrane proteins
4 Ion exchange pumps
Explanation:
(a) Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions.
