Question

The matrix around Nostoc colony is
A) Gelatinous
B) Hard and corky
C) Cartilaginous
D) No matrix at all

Answer 1

may be (d) no matrix at all

Answer 2

The matrix around the Nostoc colony is A) Gelatinous.

1. Nostoc is a prokaryotic organism in the Monera Kingdom.
2. It belongs to eubacteria also known as blue-green algae or cyanobacteria.
3. It forms a Colony with a gelatinous matrix it also helps in nitrogen fixation in the soil with help of heterocyst.
4. It also helps in the fixation of some inorganic salts.