285828
Which of the following statements is not correctfor methanogens?
1 They arearchaebacteria.
2 They live in marshy areas.
3 Methane is their preferred carbon source.
4 They are present in guts of several ruminant animals.
Explanation:
(c) Methanogens are archaebacteria that live in marshy area produce methane as a metabolic byproduct in anoxic conditions. Methane is not their preferred carbon source.
NCERT Page-19 / N-13
BIOLOGICAL CLASSIFICATION(NCERT)
285829
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(NCERT)
285830
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.
285828
Which of the following statements is not correctfor methanogens?
1 They arearchaebacteria.
2 They live in marshy areas.
3 Methane is their preferred carbon source.
4 They are present in guts of several ruminant animals.
Explanation:
(c) Methanogens are archaebacteria that live in marshy area produce methane as a metabolic byproduct in anoxic conditions. Methane is not their preferred carbon source.
NCERT Page-19 / N-13
BIOLOGICAL CLASSIFICATION(NCERT)
285829
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(NCERT)
285830
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.
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BIOLOGICAL CLASSIFICATION(NCERT)
285828
Which of the following statements is not correctfor methanogens?
1 They arearchaebacteria.
2 They live in marshy areas.
3 Methane is their preferred carbon source.
4 They are present in guts of several ruminant animals.
Explanation:
(c) Methanogens are archaebacteria that live in marshy area produce methane as a metabolic byproduct in anoxic conditions. Methane is not their preferred carbon source.
NCERT Page-19 / N-13
BIOLOGICAL CLASSIFICATION(NCERT)
285829
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(NCERT)
285830
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.