LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
1.5k views
in Biology by (51.1k points)

Write a note on economic importance of algae and gymnosperms.

1 Answer

+1 vote
by (52.2k points)
selected by
 
Best answer

 Economic Importance of Algae:

• Almost 50% of carbon fixation on earth is carried out by algae. Thus, they are among the large producers on the earth; especially in aquatic habitat. About 70 species of marine algae are used as food, e.g. Porpyra, Laminaria and Sargassum.

• Some marine brown and red algae produce large amounts of hydrocolloids. Hydrocolloids are water holding substances and are used commercially.

• Agar; which is obtained from Gelidium and Gracilaria is used as culture medium in laboratories. It is also used in making ice-cream and jelly.

• Chlorella and Spirullaina are used as food supplements; even during space travel. 

Economic Importance of Gymnosperms:

• They are widely used as ornamental plants. 

• Fibres from conifer are used as paper pulp.

• Conifers are widely used in reforestation projects. 

• Turpentine and rosin are made from conifer resin. 

• Commercially useful oils are produced from many conifers, e.g. juniper, pine, fir, etc.

Related questions

+2 votes
1 answer
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...