Question

Iodine is obtained from the members?
A.Green algae
B. Brown algae
C. Red algae
D. Blue-green algae

Answer 1

Hint: Brown algae is a source of Iodine and Potash. It has economic importance. Amongst brown algae, Fucus and Laminaria are a rich source of iodine. 25% of iodine and Br, Cu, Zn, Fe, Mn, Mo is obtained from kelps. The dried kelps are used to treat goiter, Because of having iodine.

Complete answer:
> Option (A) is Green algae
The green algae are a large and informal group of algae consisting of the Chlorophyta and Charophyta/Streptophyta. These are now placed in separate divisions, jointly with the more basal Mesostigmatophyceae, Chlorokybophyceae, and Spirotaenia.

> Option (B) is brown algae (singular: alga). It comprises the class Phaeophyceae. It is a large group of multicellular algae, encompassing many seaweeds found in colder waters within the Northern Hemisphere. Most brown algae are found in marine environments, where they play a crucial role both as food and as potential habitat.

> Option (C) is Red algae
Red algae, or Rhodophyta, are one of the former groups of eukaryotic algae. It is also one of the largest phyla of algae, containing over 7,000 currently comprehended species with taxonomic modifications ongoing.

> Option (D) is Blue-green algae
Cyanobacteria, also recognized as Cyanophyta, is a phylum comprising both free-living photosynthetic bacteria and the endosymbiotic plastids. These are present in the Archaeplastida autotrophic eukaryotes. The plastids are a sister group to the free-living Gloeomargarita.

Hence, The correct answer is option (B).

Note: Brown algae is a group of edible algae found off the coast of Japan, Korea, and China. Brown algae are useful in a variety of conditions including cancer, fibromyalgia, arthritis, stress, weight loss, heart disease, high cholesterol, and many other conditions.