Multiple choice

Why is spirogyra called the silk of the pond?

  1. It forms a silky mat in water where it is present.

  2. It is grass which is green in colour.

  3. It forms oxygen bubbles during photosynthesis.

  4. It has a mucilagenous layer over it.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The cells are covered by a sheath of mucilage, due to which it looks like silk.

Keep practicing — related questions