Which of the following is NOT a chemical component of a bacterial cell wall?

A) Cellulose
B) Peptidoglycan
C) Teichoic acids
D) Peptide chains
E) N-acetylmuramic acid


Ans: A) Cellulose

Biology & Microbiology

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The plant cell organelle analogous to the endosome is the

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Explain how the Linnaean system of classification, although developed without any concept of

evolutionary theory, provided a reasonable, if not perfect, framework for later application of evolutionary systematics. What limitations of the Linnaean system have spurred cladists to argue for its abandonment and replacement by modern cladistic approaches?

What will be an ideal response?

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ATP is to the cell as __________ is(are) to the

financial community. a. printed currency b. checks c. credit d. gold reserves e. automated tellers

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The main reason scientists thought that proteins, rather than DNA, were the carriers of genetic material

in the cell was:a. their presence within the nucleus. b. their abundance within the cell. c. the large number of possible amino acid combinations. d. their ability to self replicate within the cytoplasm. e. their ability to be exported from the cell.

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