Question

Q. Consider the following statements, with reference to Algae:

Which of the above given statements is correct?

• A.
  1, 2 and 4 only
• B.
  2 and 4 only
• C.
  1, 3 and 4 only
• D.
  1, 2 and 3 only

Answer 1

The correct option is D

1, 2 and 3 only
Explanation:

Alga is a term that describes a large and incredibly diverse group of eukaryotic, photosynthetic life forms. It can be unicellular or multicellular.

Statement 1 is correct: Algae flourish in nutrient-rich waters such as urban wastewater (sewage), animal waste and some industrial effluents, while at the same time purifying such waste and creating a biomass suitable for biofuels.

Statement 2 is correct: Algae produce a variety of base materials that can be used for bioplastics production. Most important are carbohydrates and hydrocarbons

Statement 3 is correct: Microalgae contain similar raw materials as traditional crops: high-quality oils, proteins, pigments as well as hydrocarbons and sugars.

Statement 4 is incorrect: Algae can survive in snowy regions too. They live in ocean to pond environments. It is commonly green, but can be found in a number of colours. In addition to chlorophyll, for example, algae living in snow produce carotenoid pigments, thus giving the surrounding snow a distinctive red colour.