Multiple choice

Hydrocolloids are water holding substances and are used commercially. Which of the following organisms is used to produce these hydrocolloids?

  1. Bryophytes

  2. Pteridophytes

  3. Gymnosperms

  4. Brown and red algae

  5. Angiosperms

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Yes, it is correct. Some marine brown and red algae produce large amounts of hydrocolloids.