Question

Algae have cell wall made up of:
(a) cellulose, galactans and mannans
(b) hemicellulose, pectins and proteins
(c) pectins, cellulose and proteins
(d) cellulose, hemicellulose and pectins

Answer 1

Answer:

b is right answer. .. .. .........

Answer 2

(a) cellulose, galactans and mannans

Explanation:

Cell wall is a non-living rigid structure, forms outer covering for the plasma membrane of plants which gives shape to the cell and and protects the cell from mechanical damage and infection. Algae have cell wall which is made up of cellulose, galactans, mannans and minerals like calcium carbonate. While in other plants cell wall is made up of cellulose, hemicellulose, pectins and protein.