Question

Which of the following algae is being used in space research?
1. Chlorella
2. Cladophora
3. Hydrodictyon
4. Chlamydomonas

Answer 1

Correct Answer - Option 1 : Chlorella

Concept:

• Plants in the Thallophyta group are commonly called algae.
• The group Thallophyta includes plants that are without embryos.
• This group includes algae and fungi.
• The other plants are included in the Embryophyta.
• Examples are Spirogyra, Ulothrix, Cladophora, Chorella, Hydrodictyon, and Chara.

Explanation:

• Chlorella (green alga) is known as the Space algae and is used in space research.
• It serves as a good source of food for humans in space as it contains a high level of iron, vitamins and amino acids.
• It grows easily in the presence of sunlight, minerals and water and using hydroponics.

 

• Cladophora (green algae) grow both in fresh and saline water. Cladophorales has many nuclei are present in their coenocytic body.
• Hydrodictyon is a green alga. It is commonly called water net
• Chlamydomonas: It is a unicellular green alga(eukaryote). It contains higher photosynthetic pigments like chl.a and b, so it is capable of producing its food