A) Chlamydornonas
B) Chlorella
C) Gelidium
D) Spirogyra
Correct Answer: C
Solution :
Agar-agar, a gelatin like substance, is obtained commercially from the red algae, eg, Gelidium and Gracilaria. It is: used widely in preparing solid food media for the growth of bacteria or fungi in laboratory. An antibiotic chlorellin is obtained from Chlorella. Chlorella is also a good source of proteins and Vitamins. It is also used in space travel as it is able to utilize all the \[C{{O}_{2}}\]released by the astronauts and provides \[{{O}_{2}}\] and food required by space travellers.
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