EVERYDAY SCIENCE

Detailed explanation-1: -Chlorella is a green alga and is used as a food supplement by space travellers. Spirulina is a cyanobacteria which is also used as a food supplement. Both Chlorella and Spirulina are single celled proteins. Laminaria is a multicellular brown alga .

Detailed explanation-2: -Chlorella is a unicellular green alga, rich in proteins and is used as food supplement even by space travellers.

Detailed explanation-3: -Chlorella and Spirulina are used as a food supplement by space travellers.

Detailed explanation-4: -Algae like Chlorella and Spirulina are used as a source of food. This is because Chlorella and Spirulina are single-celled proteins or SCP. Spirulina is used by the space astronauts as a source of food in the form of capsules when they are in space. Chlorella is known as the space algae as it releases oxygen.

Detailed explanation-5: -Chlorella and spirulina are microalgae and rich in protein and have sufficient amounts of other nutrients such as vitamins, fatty acids and pigments. Chlorella spp. are spherical members of Chlorophyta phylum used as food supplements in recent times. Chlorella is a green algae containing 51%-58% protein.