Question
Biology Question on Kingdom Plant
Green algae usually have a rigid cell wall made of an inner layer of ______ and an outer layer of _______.
A
cellulose, cellulose
B
pectose, pectose
C
pectose, cellulose
D
cellulose, pectose
Answer
cellulose, pectose
Explanation
Solution
Cell wall of green algae is thin, transparent and firm and consists of outer pectic and inner cellulosic layers. It is smooth but in most of species it gets thickened at the anterior end to form an apical papilla.