Question:

Iodine is obtained from alga

Updated On: Jun 23, 2023
  • Chlorella
  • Polysiphonia
  • Porphyra
  • Laminaria
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The Correct Option is D

Solution and Explanation

Laminaria is a brown algae (Phaeophyceae). Its commercial cultivation is done to obtain algin, iodine and mannitol.
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Concepts Used:

Plant Kingdom

The Plant Kingdom comprises all the plants that have some shared characteristics. These are bacteria (prokaryotes), photosynthetic plants, fungi, and several non-photosynthetic plants.

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Several features of Kingdom Plantae are as follows:

  • They are stationary. They are static and usually remain in one place only.
  • They have branches that expanded and green leaves due to the presence of chlorophyll.
  • They are an autotrophic mode of nutrition that simply means they prepare their food with the help of water, sunlight and carbon dioxide. It is further known as self-nutrition.
  • They indulge in photosynthesis during the day and therefore more carbon dioxide is needed during the day and at night it is released.
  • They secure their food in the form of starch-like algae.
  • They have an inelastic wall around their cell known as a cell wall comprised of cellulose.
  • There is an absence of the nervous system and excretory system.
  • Reproduction is entirely dependent on air, insects and water. Asexual and vegetative method of reproduction is noticed or detected.
  • The non-photosynthetic plants acquire their food through parasitism, i.e through their host like Indian pipe.

Read More: Classification of Plants