Which of the following statements about animal connective tissues is true? (a) Enzymes embedded in the plasma membrane synthesize the collagen in the extracellular matrix extracellularly. (b) In connective tissue, the intermediate filaments within the cells are important for carrying the mechanical load. (c) Cells can attach to a collagen matrix by using fibronectin, an integral membrane protein. (d) Proteoglycans can resist compression in the extracellular matrix.
Added by Inmaculada R.
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- This statement is false. Collagen is synthesized intracellularly and then secreted into the extracellular matrix. Show more…
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Which of the following statements about animal connective tissues is TRUE? Group of answer choices A) Enzymes embedded in the plasma membrane synthesize the collagen in the extracellular matrix extracellularly. B) In connective tissue, the intermediate filaments within the cells are important for carrying the mechanical load. C) Cells can attach to a collagen matrix by using fibronectin, an integral membrane protein. D) Proteoglycans can resist compression in the extracellular matrix. E) One of the main chemical differences between proteoglycans and glycoproteins lies in the structure of their carbohydrate side chains: proteoglycans mostly contain short, branched polysaccharide side chains, whereas glycoproteins contain much longer, unbranched oligosaccharides.
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Which of the following statements about animal connective tissues is TRUE? The extracellular matrix (ECM) of connective tissues is rich in microtubules. The cells in connective tissues are rich in tight junctions. In connective tissue, the intermediate filaments within the cells are important for carrying the mechanical load. Proteoglycans and other molecules rich in glycosaminoglycans found in the ECM of connective tissues can resist compression and form hydrated gels.
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Regarding connective tissue, which of the following statements is false? a. It is mostly formed by tightly connected fibroblasts. b. Its strength is determined by the matrix. c. Some specialized cells produce histamine. d. It offers support to the softer organs of the body. e. Cartilage is rich in collagen fibers and water.
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