What is a major difference between the extracellular matrix (ECM) of a plant cell and the ECM of an animal cell?
A) Plant ECM is composed primarily of proteins, whereas animal ECM is mainly carbohydrates.
B) Plant ECM is primarily carbohydrate in nature, whereas animal ECM is mainly proteins.
C) Plant and animal ECMs are quite similar in structure and function.
D) ECM components in plant cells are released extracellularly by the Golgi stacks, whereas lysosomes do this in animal cells.
Answer: B
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