Thành phần chính của vách sơ cấp: A. Cellulose (9-25%), hemicellulose (25 - 50%), pectin (10 - 35%), protein (15%). B. Cellulose (25%), hemicellulose (25 - 50%), pectin (20-35%), protein (15%

Cellulose (9-25%), hemicellulose (25 - 50%), pectin (10 - 35%), protein (15%).

Cellulose (25%), hemicellulose (25 - 50%), pectin (20-35%), protein (15%).

Cellulose (9-25%), hemicellulose (25 - 50%), pectin (20-35%).

Cellulose (20% - 30%), hemicellulose (25 -50%), pectin (10-35%).