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Question

Find the wrong statements.
(a) Ulothrix and Spirogyra are filamentous forms
(b) Porphyra and Laminaria are fresh water algae
(c) Stored food is in the form of mannitol in rhodophyceae
(d) Chlorella and Spirulina are unicellular algae

A
a and b
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B
b and c
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C
a and c
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D
a and d
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E
b and d
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Solution

The correct option is E b and c
  • The majority of the red algae are marine with greater concentrations found in the warmer areas. They occur in both well-lighted regions close to the surface of the water and also at great depths in oceans where relatively little light penetrates. Hence, Porphyra and Laminaria are not freshwater algae.
  • The stored food is Floridian starch which is very similar to amylopectin and glycogen in structure. Hence, Stored food is not in the form of mannitol in Rhodophyceae. Hence, b and c are wrong statements.
  • So, the correct answer is "b and c'.

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