A) hemicellulose
B) muramic acid
C) calcium pectate
D) phosphoglycerides
Correct Answer: C
Solution :
| [C] The middle lamella is cementing layer between the cells. It is made up of Ca and Mg pectates. The basic chemical unit of pectin is galacturonic acid, which have the capability of salt formation with calcium and magnesium (an acid base reaction). |
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