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Pre-Test
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1
Which one of the following statements is correct?
A)Multicellular organisms typically have larger genomes and therefore larger proteomes than unicellular organisms.
B)Plants, which lack a rigid skeleton, require an extracellular matrix; animals, which possess more defined shapes, do not require an extracellular matrix.
C)Fewer proteins are devoted to cell-cell communication in multicellular organisms than in unicellular organisms.
D)The extra cellular matrix surrounding animal cells provides a rigid cell wall for support
E)The extracellular matrix found in woody portions of plants continues to grow as a plant grows.
2
Which of the following is not a function of the extracellular matrix in animals?
A)Structural support
B)Organization
C)Strength
D)Defense
E)Communication
3
A group of cells having a similar structure and function is most accurately referred to as
A)an organ.
B)a cell culture.
C)an organism.
D)a tissue.
E)an organ system.





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